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refactor: pair exclude_types as canonical NeighborGraph transform; dpa1 graph path supports exclude_types (decision #18)#5733

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refactor: pair exclude_types as canonical NeighborGraph transform; dpa1 graph path supports exclude_types (decision #18)#5733
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@wanghan-iapcm wanghan-iapcm commented Jul 5, 2026

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Pair exclude_types as a canonical NeighborGraph transform (decision #18)

Stacked on #5715 (NeighborGraph PR-D). Only the commits after 6fc45bd26 belong to this PR; will rebase onto master once #5715 merges.

Makes pair-type exclusion a single canonical transform applied once at the neighbor-list/graph build seam, and uses it to add descriptor-level exclude_types support to the dpa1 graph path (removing that eligibility gate), consistently across dpmodel, pt_expt, jax, and the C++ inference path.

What changed

  • Canonical graph transform apply_pair_exclusion(graph, atype, pair_excl, *, compact=False) in deepmd/dpmodel/utils/neighbor_graph/: ANDs PairExcludeMask.build_edge_exclude_mask into graph.edge_mask. compact=False is mask-only (shape-static, export/AOTI-safe); compact=True drops masked edges (eager-only; raises on angle-carrying graphs). Idempotent.
  • Atomic-model seam (base_atomic_model): model-level pair_exclude_types is applied at BUILD time, so forward_common_atomic{,_graph} no longer re-apply it — they consume a pre-excluded nlist/graph (single-owner, not a backstop). To keep that from being fail-open, an eager (numpy) fail-safe assertion (_assert_nlist_pair_excluded / _assert_graph_pair_excluded) rejects a non-excluded input at the seam with a clear error; it is a no-op under torch.export / jax jit and in compiled production (the exported-.pt2 / C++ paths are covered by ingestion-site tests). See the ingestion-path inventory below.
  • dpa1 graph path supports descriptor-level exclude_types: the NotImplementedError and the uses_graph_lower() exclude condition are removed; exclusion applied inside DescrptBlockSeAtten.call_graph before the segment sums. Graph-vs-dense parity at non-binding sel is exact (rtol=atol=1e-12, attn_layer 0 and 2, type_one_side both).
  • Build-time exclusion (dispatcher): build_neighbor_graph and the pt_expt graph builders (dense/ase/vesin/nv) gain optional pair_excl/compact with default post-search application; _call_common_graph passes model-level excludes at build time; oracle set-equality tests per available builder.
  • Dense-nlist port: apply_pair_exclusion_nlist(nlist, atype_ext, pair_excl) extracted from the inline seam code; build_neighbor_list + Vesin/Nv/Default strategies gain pair_excl; return_mode='edges' + pair_excl fails fast.
  • C++ twin: buildPairExcludeTable / applyPairExclusion / applyPairExclusionNlist in source/api_cc/include/commonPT.h, mirroring the Python transforms (same arg order/variable names, cross-referenced docs); pair_exclude_types serialized into .pt2 metadata.json and rebuilt once in DeepPotPTExpt::init (device-resident table, uploaded once — no per-step H2D). Exclusion is applied at the C++ ingestion seam — the single owner on every run path; the exported lower consumes a pre-excluded input and never re-applies it. New gtest (8 tests) vs Python DeepEval reference at 1e-10, plus multi-rank LAMMPS exclusion tests (below).
  • Fix: apply_pair_exclusion uses logical_and + bool cast (array_api_strict rejected bool*bool), caught by the jax/strict consistency rows now traversing the graph path.

Ingestion-path inventory (exclusion coverage)

Because the seam is now the single owner (fail-open if skipped), here is every entry point that builds a nlist/graph reaching the exclusion-owning lower, and how each applies exclusion:

Entry point Applies exclusion at Coverage
dpmodel _call_common (dense) build_neighbor_list(pair_excl=) eager guard + consistency rows
dpmodel _call_common_graph build_neighbor_graph(pair_excl=) eager guard + graph/dense parity
dpmodel descriptor-level exclude_types apply_pair_exclusion in call_graph dpa1 graph parity
pt_expt DeepEval — nlist apply_pair_exclusion_nlist / vesin pair_excl parity vs dpmodel
pt_expt DeepEval — graph _build_eval_graph(pair_excl=) (dense/ase/vesin/nv) parity vs dpmodel
pt_expt/jax/pd training build_neighbor_graph(pair_excl=) in stat/forward training e2e
input statistics build_neighbor_list(pair_excl=) in EnvMatStatSe.iter stat tests (hash key = follow-up, pre-existing)
jax-md call_lower apply_pair_exclusion_nlist at the seam (fixed here) test_dense_neighbor_applies_model_pair_exclusion
C++ SP dense applyPairExclusionNlist gtest
C++ MP dense (with-comm) applyPairExclusionNlist (fixed here) DPA3 MP≡SP + active-vs-baseline
C++ SP graph applyPairExclusion gtest
C++ MP graph (non-MP, extended) applyPairExclusion dpa1 MP≡SP + active-vs-baseline
C++ MP graph (message-passing) fail-fast (PR-G)
C++ / DeepEval edge lower (SeZM/DPA4) baked into the exported graph by the pt backend (unchanged) out of scope — pt-backend export

Guard: forward_common_atomic{,_graph} additionally carry an eager fail-safe assertion (numpy only) that rejects a non-excluded input, so any future dpmodel/jax ingestion miss fails loudly instead of silently including excluded pairs.

Known limitations

  • nv builder's pair_excl path has no local oracle test (CUDA-only); to be validated on a GPU box.
  • Input statistics remain on the dense path (graph-native stats is a separate follow-on); the stat-cache hash key does not yet include pair_exclude_types — pre-existing (predates this PR) and tracked as a separate fix.
  • smooth_type_embedding + exclude parity untestable at 1e-12 (pre-existing dense sel-padding divergence, feat(dpmodel): graph-native se_atten attention (NeighborGraph PR-D) #5715).
  • build_edge_exclude_mask still returns int32 (bool cast at call sites; follow-up).

🤖 Generated with Claude Code

Spin routing

Spin models auto-inject exclude_types (virtual/placeholder types) into their backbone descriptor; before this PR that condition accidentally kept spin on the dense path. With exclude_types now graph-eligible, spin backbones flipped onto the carry-all graph route, which (a) diverges from the sel-capped reference on sel-binding spin systems and (b) trips a torch-inductor scatter codegen assertion during spin .pt2 export. Fixed explicitly: DescrptDPA1.disable_graph_lower() (not serialized; re-derived structurally) is set in SpinModel.__init__ — the single choke point covering get_spin_model, SpinModel.deserialize, and the pt_expt spin classes — plus a belt-and-braces neighbor_graph_method="legacy" at SpinModel.call_common. Regression tests pin the routing and its serialize→deserialize survival; the full spin export suite (23) and spin checkpoint-interop suite (12) are green.

Verification

Full pt_expt suite: 1196 passed / 39 skipped / 3 failed — the 3 failures (test_dpa4_freeze_to_pt2, test_dpa4_deep_eval_*) are byte-identical on the base commit (pre-existing torch-inductor dpa4 export issue on this box, unrelated). dpmodel exclusion suites 69 passed; consistency dpa1 99 passed/63 skipped (incl. jax + array_api_strict exclude rows); C++ Dpa1PairExcl gtest 8/8.

Summary by CodeRabbit

  • New Features
    • Added model-level pair-type exclusion across neighbor lists and neighbor graphs, including propagation into exported .pt2 metadata and enforcement at inference ingestion.
    • Expanded DPA1 graph-native attention support (including higher attention layers) and introduced stable segmented reductions for graph attention.
    • Added export-time guards to block unsupported graph tracing on older torch versions.
  • Bug Fixes
    • Improved dense vs graph consistency for exclusion/masking behavior.
    • Preserved spin model legacy neighbor routing for sel-binding cases.
  • Documentation
    • Refreshed graph-export eligibility and backend behavior notes for attention/smooth differences.
  • Tests
    • Added/expanded parity, exclusion, compaction, and tracing regression coverage.

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📝 Walkthrough

Walkthrough

This PR adds pair-exclusion support across neighbor-list and neighbor-graph paths, extends DPA1 graph-native attention and export/tracing behavior, updates spin routing, and applies matching pair-exclusion metadata in the C++ pt_expt inference seam with new tests.

Changes

Python pair exclusion and graph-native DPA1 attention

Layer / File(s) Summary
Array-API, segment, and pair-pair primitives
deepmd/dpmodel/array_api.py, deepmd/dpmodel/utils/neighbor_graph/segment.py, source/tests/common/dpmodel/test_segment_softmax.py, deepmd/dpmodel/utils/neighbor_graph/pairs.py, source/tests/common/dpmodel/test_center_edge_pairs.py
Adds export size hints, segment reductions, and center-edge pair enumeration used by graph-native attention paths.
NeighborGraph pair exclusion and exports
deepmd/dpmodel/utils/neighbor_graph/graph.py, deepmd/dpmodel/utils/neighbor_graph/env.py, deepmd/dpmodel/utils/neighbor_graph/__init__.py, source/tests/common/dpmodel/test_apply_pair_exclusion.py
Adds graph pair exclusion, switch-returning environment matrices, module exports, and unit tests for masking and compaction behavior.
Dense neighbor-list pair exclusion
deepmd/dpmodel/utils/{nlist,neighbor_list,default_neighbor_list,__init__}.py, deepmd/pt/utils/nv_nlist.py, deepmd/pt_expt/utils/vesin_neighbor_list.py, source/tests/common/dpmodel/test_apply_pair_exclusion_nlist.py
Adds pair-exclusion filtering for dense neighbor lists and wires the new parameter through neighbor-list builders and tests.
Neighbor-graph builder pair_excl wiring
deepmd/dpmodel/utils/neighbor_graph/{ase_builder,builder}.py, deepmd/pt_expt/utils/{nv_graph_builder,vesin_graph_builder}.py, source/tests/common/dpmodel/test_neighbor_graph_builder.py, source/tests/pt_expt/utils/test_vesin_graph_builder.py
Threads pair exclusion through dense, ASE, Vesin, and NV neighbor-graph builders and validates equivalence against post-processed references.
Atomic-model pair exclusion integration
deepmd/dpmodel/atomic_model/base_atomic_model.py, source/tests/common/dpmodel/test_graph_atomic_parity.py
Replaces inline exclusion masking with shared pair-exclusion helpers in dense and graph atomic forward paths.
DPA1 graph-native attention and exclusion
deepmd/dpmodel/descriptor/dpa1.py, deepmd/dpmodel/model/make_model.py, doc/model/train-se-atten.md, source/tests/common/dpmodel/test_dpa1_*, source/tests/pt_expt/descriptor/test_dpa1.py
Adds graph eligibility controls, static edge-pair routing, graph-native attention, pair exclusion masking, and related DPA1/pt_expt tests and docs.
SpinModel legacy routing
deepmd/dpmodel/model/spin_model.py, source/tests/common/dpmodel/test_spin_model_legacy_routing.py
Disables graph-lowering on the spin backbone descriptor and forces legacy neighbor-graph routing for spin inference, with regression tests.
pt_expt pair_excl and torch-version guard wiring
deepmd/pt_expt/{entrypoints/main.py, model/make_model.py, train/training.py, utils/serialization.py}, source/tests/pt_expt/utils/test_graph_pt2_metadata.py
Forwards pair exclusion into pt_expt builders, adds graph-trace torch-version checks, updates graph export docs, and records pair-exclusion metadata.
pt_expt graph-lower parity and metadata tests
source/tests/pt_expt/{model/test_dpa1_graph_lower.py, infer/test_graph_deepeval.py, model/test_linear_model.py, utils/test_neighbor_list.py, infer/test_deep_eval.py, test_finetune.py}
Extends pt_expt parity, tracing, and export tests for attention, exclusion, single-atom, and float32 cases while pinning smooth-type behavior and repeatability tolerances.

C++ pt_expt pair-exclusion ingestion seam

Layer / File(s) Summary
Pair-exclusion table and application in DeepPotPTExpt
source/api_cc/include/{DeepPotPTExpt.h, commonPT.h}, source/api_cc/src/DeepPotPTExpt.cc
Adds the pair exclusion table member, lookup helpers, and ingestion-seam application in graph and dense compute paths.
C++ pair-exclusion test suite and generator
source/api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc, source/tests/infer/gen_dpa1_pairexcl.py, source/install/test_cc_local.sh
Adds a model generator for graph and nlist pt2 artifacts, a GoogleTest suite for parity and activation checks, and build-script wiring.

Estimated code review effort: 4 (Complex) | ~75 minutes

Sequence Diagram(s)

sequenceDiagram
  participant DescrptDPA1
  participant DescrptBlockSeAtten
  participant center_edge_pairs
  participant segment_softmax
  DescrptDPA1->>DescrptBlockSeAtten: call_graph(graph, atype, static_nnei)
  DescrptBlockSeAtten->>DescrptBlockSeAtten: apply_pair_exclusion(graph, atype, pair_excl)
  DescrptBlockSeAtten->>center_edge_pairs: center_edge_pairs(dst, edge_mask, static_nnei)
  DescrptBlockSeAtten->>segment_softmax: segment_softmax(scores, query_edge, mask)
  segment_softmax-->>DescrptBlockSeAtten: normalized attention weights
  DescrptBlockSeAtten-->>DescrptDPA1: grrg, rot_mat
Loading
sequenceDiagram
  participant DeepPotPTExptInit
  participant DeepPotPTExptCompute
  participant buildPairExcludeTable
  participant applyPairExclusion
  participant applyPairExclusionNlist
  DeepPotPTExptInit->>buildPairExcludeTable: pair_exclude_types
  DeepPotPTExptCompute->>applyPairExclusion: graph edge_index, edge_mask, atype
  DeepPotPTExptCompute->>applyPairExclusionNlist: nlist, atype_ext
  applyPairExclusion-->>DeepPotPTExptCompute: filtered edge_mask
  applyPairExclusionNlist-->>DeepPotPTExptCompute: filtered nlist
Loading

Possibly related PRs

  • deepmodeling/deepmd-kit#5284: Both PRs modify the PyTorch export/tracing support for dynamic shapes by adding new array_api helpers used to keep torch.export/make_fx tracing compatible with dynamic dimensions.
  • deepmodeling/deepmd-kit#5581: The main PR is related because it extends the same neighbor-graph utilities with new segment reductions and graph helpers.
  • deepmodeling/deepmd-kit#5583: Both PRs substantially modify the DPA1 graph-native forward surface, especially around graph eligibility, call_graph, and exclusion handling.

Suggested labels: enhancement, Python, C++

Suggested reviewers: OutisLi, iProzd

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title is specific and matches the main refactor: canonical pair exclude_types handling plus DPA1 graph-path support.
✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests

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Comment thread source/tests/common/dpmodel/test_graph_atomic_parity.py Fixed
Comment thread source/tests/common/dpmodel/test_neighbor_graph_builder.py Fixed

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Actionable comments posted: 2

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
source/tests/pt_expt/descriptor/test_dpa1.py (1)

117-147: 🎯 Functional Correctness | 🟠 Major | ⚡ Quick win

Pass mapping to torch.export.export here

test_exportable still goes through the dense fallback because TestCaseSingleFrameWithNlist sets nloc=3 and nall=4, while this export call passes no mapping. That means the new exclude_types case only covers the legacy dense exclusion mask, not the graph-native apply_pair_exclusion path. Add mapping to the exported inputs so the parametrization exercises the intended route.

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@source/tests/pt_expt/descriptor/test_dpa1.py` around lines 117 - 147,
test_exportable is missing the graph mapping input, so it still exercises the
dense fallback instead of the graph-native exclusion path. Update the export
setup in test_exportable to pass mapping into torch.export.export alongside dd0
and the existing inputs, using the test fixture’s mapping source so the
exclude_types parametrization covers apply_pair_exclusion as intended.
🧹 Nitpick comments (7)
deepmd/dpmodel/model/make_model.py (1)

316-322: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Docstring update looks accurate; stale example nearby.

Matches the new DPA1 graph-native attention behavior (attention layers now included in graph eligibility). Note the unchanged _call_common_graph exception message a few dozen lines below ("e.g. dpa1 attn_layer=0") is now a narrower example than what this docstring describes — consider updating that message text for consistency in a follow-up.

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@deepmd/dpmodel/model/make_model.py` around lines 316 - 322, The exception
message in _call_common_graph is now too narrow compared with the updated
graph-native attention behavior described in the nearby docstring. Update the
message text in _call_common_graph so it reflects the broader DPA1
attention-layer graph eligibility instead of only referencing the old “e.g. dpa1
attn_layer=0” example, keeping the wording consistent with the behavior
documented in make_model.py.
source/tests/common/dpmodel/test_dpa1_call_graph_descriptor.py (1)

166-179: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Test comment overstates what is actually verified.

The comment says this block will "verify excluded pairs contribute sw == 0" and "check ... call_graph sw channel", but call_graph only returns (grrg, rot_mat) — it has no sw output — and the actual assertions only check for NaN/Inf, not the claimed masking behavior. The earlier out[4] vs ref[4] comparison (lines 162-164) already indirectly validates exclusion parity for sw via the dense reference, so this block is largely redundant and its comment is misleading about intent/coverage. Either remove the stale comment or replace it with an assertion that actually validates zeroed contributions from excluded pairs (e.g., inspect the block's edge_mask/sw_e via se_atten.call_graph directly).

♻️ Suggested comment fix (minimal)
-        if exclude_types:
-            # verify excluded pairs contribute sw == 0 in the dense reference
-            # (atype=[0,1,0,1] -> pairs (0,1) and (1,0) should be masked)
-            # sw shape: (nf, nloc, nnei, 1); just check the graph output is also 0
-            # for excluded-pair edges by checking call_graph sw channel
+        if exclude_types:
+            # additional sanity check on the raw call_graph output (no sw
+            # channel here; exclusion parity for sw is already verified via
+            # out[4] vs ref[4] above).
             graph = from_dense_quartet(ext_coord, nlist, mapping, compact=False)
             atype_local = self.atype.reshape(-1)
-            grrg_g, rot_mat_g = dd.call_graph(
+            grrg_g, _rot_mat_g = dd.call_graph(
                 graph, atype_local, type_embedding=dd.type_embedding.call()
             )
             # no nan/inf in output with exclusions applied
             assert not np.any(np.isnan(grrg_g))
             assert not np.any(np.isinf(grrg_g))
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@source/tests/common/dpmodel/test_dpa1_call_graph_descriptor.py` around lines
166 - 179, The comment in test_dpa1_call_graph_descriptor is misleading because
this block does not verify excluded-pair sw masking; call_graph only returns
grrg and rot_mat, and the current assertions only check NaN/Inf. Update the test
by either removing/rephrasing the stale comment to match the actual coverage, or
add a real assertion for zeroed excluded-pair contributions by checking the
relevant sw/edge-mask path through se_atten.call_graph or the returned graph
data. The earlier out[4] vs ref[4] comparison already covers sw parity, so keep
this block focused on what it truly validates.
source/tests/common/dpmodel/test_neighbor_graph_builder.py (1)

419-427: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Redundant import unittest.

unittest is already imported at the top of this file; the local re-import inside the except block is unnecessary.

🧹 Proposed cleanup
     `@classmethod`
     def setUpClass(cls) -> None:
         try:
             import ase  # noqa: F401
         except ImportError as e:
-            import unittest
-
             raise unittest.SkipTest("ase not installed") from e
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@source/tests/common/dpmodel/test_neighbor_graph_builder.py` around lines 419
- 427, Remove the redundant local import inside test_neighbor_graph_builder’s
setUpClass method: the file already imports unittest, so keep the ImportError
handling but drop the inner import and use the existing unittest.SkipTest
reference when ase is missing.

Source: Linters/SAST tools

deepmd/dpmodel/utils/neighbor_graph/graph.py (1)

192-194: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Docstring overstates what compact=True replaces.

The parameter doc says edge_index, edge_vec, angle_index, angle_mask are all replaced when compact=True. In practice angle_index/angle_mask are never touched by the compact branch — the function only reaches the compaction step after confirming both are None (otherwise it raises NotImplementedError). Listing them as "replaced" could mislead a future implementer extending angle-compaction support into thinking this path already handles it.

📝 Suggested doc fix
     graph
-        The neighbor graph; only ``edge_mask`` (and, if ``compact=True``,
-        ``edge_index``, ``edge_vec``, ``angle_index``, ``angle_mask``) are
-        replaced.
+        The neighbor graph; only ``edge_mask`` (and, if ``compact=True``,
+        ``edge_index`` and ``edge_vec``) are replaced. ``angle_index`` /
+        ``angle_mask`` are never touched — compaction is rejected outright
+        when either is present (see the ``compact`` behavior below).
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@deepmd/dpmodel/utils/neighbor_graph/graph.py` around lines 192 - 194, The
docstring for the neighbor graph parameter overstates the effect of compact=True
by implying that angle_index and angle_mask are also replaced. Update the
documentation in graph.py to say compact mode only compacts edge_index and
edge_vec (along with edge_mask), and make it clear that angle_index and
angle_mask are not handled by this branch because the code path only proceeds
when they are None.
deepmd/dpmodel/utils/neighbor_graph/ase_builder.py (1)

154-163: 🩺 Stability & Availability | 🔵 Trivial | ⚡ Quick win

Pin device explicitly when converting atype for apply_pair_exclusion.

xp = array_api_compat.array_namespace(coord) followed by xp.asarray(atype) doesn't pin a device, unlike the analogous pair_excl wiring in nv_graph_builder.py and vesin_graph_builder.py, which both use torch.as_tensor(atype, device=<coord's device>). If atype isn't already a tensor on the same device as coord (e.g. a CPU/numpy atype paired with a CUDA coord), xp.asarray will silently produce a CPU tensor, which will then device-mismatch against graph.edge_index/edge_mask inside apply_pair_exclusion.

🔧 Suggested fix
     if pair_excl is not None:
         import array_api_compat

         xp = array_api_compat.array_namespace(coord)
-        atype_flat = xp.reshape(xp.asarray(atype), (-1,))
+        dev = array_api_compat.device(coord)
+        atype_flat = xp.reshape(xp.asarray(atype, device=dev), (-1,))
         graph = apply_pair_exclusion(graph, atype_flat, pair_excl, compact=compact)
     return graph
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@deepmd/dpmodel/utils/neighbor_graph/ase_builder.py` around lines 154 - 163,
The atype conversion in the ASE neighbor graph path is not explicitly pinned to
coord’s device, so apply_pair_exclusion can receive tensors on the wrong device.
Update the ase_builder flow that builds graph and handles pair_excl to convert
atype the same way as the nv_graph_builder and vesin_graph_builder paths: derive
the device from coord and create atype on that device before flattening and
passing it into apply_pair_exclusion. This keeps the device consistent with
graph.edge_index and graph.edge_mask.
source/tests/common/dpmodel/test_graph_atomic_parity.py (1)

318-344: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Drop the unused model scaffolding. am is never referenced here, so DescrptDPA1, InvarFitting, and DPAtomicModel can be removed from this test.

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@source/tests/common/dpmodel/test_graph_atomic_parity.py` around lines 318 -
344, The test builds unused model scaffolding that is never referenced, so
remove the dead setup from test_apply_pair_exclusion_idempotent. Eliminate the
DescrptDPA1, InvarFitting, and DPAtomicModel construction (including the am
variable) and keep only the inputs actually needed for
extend_input_and_build_neighbor_list, from_dense_quartet, and
apply_pair_exclusion. Make sure the test still covers both the empty and
non-empty pair_exclude_types branches.

Sources: Coding guidelines, Linters/SAST tools

source/api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc (1)

101-159: 🎯 Functional Correctness | 🔵 Trivial | 🏗️ Heavy lift

Test coverage gap: LAMMPS InputNlist ingestion route not exercised for pair-exclusion.

check_against_ref/all TYPED_TESTs call the 6-arg dp.compute(ener, force, virial, coord, atype, box), which routes to DeepPotPTExpt's standalone (no-nlist, build_nlist-based) compute() overload. The LAMMPS-style InputNlist overload — the actual pair-style ingestion seam, which caches edge_index_tensor/firstneigh_tensor at ago==0 and recomputes geometry via compactEdgeTensors every step before calling applyPairExclusion/applyPairExclusionNlist — is never invoked here. A bug isolated to that branch's node/edge tensor construction (e.g. the multi_rank ? nall_real : nloc node-count selection feeding applyPairExclusion) wouldn't be caught by this suite.

Consider adding a case that drives the InputNlist overload (mirroring the pattern in test_deeppot_dpa1_graph_ptexpt.cc) with pair_exclude_types set, so both C++ ingestion entry points are validated against the Python reference.

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@source/api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc` around lines 101 -
159, Add coverage for the LAMMPS-style InputNlist ingestion path in this
pair-exclusion test, because the current check_against_ref and TYPED_TESTs only
exercise the 6-arg DeepPot::compute route. Introduce a test that calls the
InputNlist compute overload on DeepPotPTExpt, using pair_exclude_types and
matching the pattern used in test_deeppot_dpa1_graph_ptexpt.cc, so the edge/node
tensor caching and applyPairExclusion/applyPairExclusionNlist branch are
validated against the Python reference.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@deepmd/pt_expt/entrypoints/main.py`:
- Around line 571-576: Update the stale inline comment in main by removing the
“no type exclusion” restriction so it matches the current graph-eligibility
behavior. Keep the note aligned with `_model_uses_graph_lower` in training.py
and the nearby ValueError message: describe graph lower as opt-in for
graph-eligible models (dpa1 with concat tebd, attention layers, and supported
exclude_types) and preserve the rest of the fail-fast/per-atom-virial
explanation.

In `@doc/model/train-se-atten.md`:
- Around line 160-164: Update the pt_expt training doc sentence describing
graph-eligible descriptors so it no longer says descriptor-level exclude_types
disqualifies the carry-all neighbor-graph path. Use the surrounding
se_atten/neighbor_graph_method explanation to state that mixed-type descriptors
with tebd_input_mode "concat" and no descriptor-level compression remain
graph-eligible, while exclude_types is not a blocking condition anymore. Keep
the dense-vs-graph parity note tied to smooth_type_embedding and attn_layer, but
make the eligibility rule consistent with the current behavior exercised by
test_exclude_types_graph_eligible_and_parity and dd.uses_graph_lower().

---

Outside diff comments:
In `@source/tests/pt_expt/descriptor/test_dpa1.py`:
- Around line 117-147: test_exportable is missing the graph mapping input, so it
still exercises the dense fallback instead of the graph-native exclusion path.
Update the export setup in test_exportable to pass mapping into
torch.export.export alongside dd0 and the existing inputs, using the test
fixture’s mapping source so the exclude_types parametrization covers
apply_pair_exclusion as intended.

---

Nitpick comments:
In `@deepmd/dpmodel/model/make_model.py`:
- Around line 316-322: The exception message in _call_common_graph is now too
narrow compared with the updated graph-native attention behavior described in
the nearby docstring. Update the message text in _call_common_graph so it
reflects the broader DPA1 attention-layer graph eligibility instead of only
referencing the old “e.g. dpa1 attn_layer=0” example, keeping the wording
consistent with the behavior documented in make_model.py.

In `@deepmd/dpmodel/utils/neighbor_graph/ase_builder.py`:
- Around line 154-163: The atype conversion in the ASE neighbor graph path is
not explicitly pinned to coord’s device, so apply_pair_exclusion can receive
tensors on the wrong device. Update the ase_builder flow that builds graph and
handles pair_excl to convert atype the same way as the nv_graph_builder and
vesin_graph_builder paths: derive the device from coord and create atype on that
device before flattening and passing it into apply_pair_exclusion. This keeps
the device consistent with graph.edge_index and graph.edge_mask.

In `@deepmd/dpmodel/utils/neighbor_graph/graph.py`:
- Around line 192-194: The docstring for the neighbor graph parameter overstates
the effect of compact=True by implying that angle_index and angle_mask are also
replaced. Update the documentation in graph.py to say compact mode only compacts
edge_index and edge_vec (along with edge_mask), and make it clear that
angle_index and angle_mask are not handled by this branch because the code path
only proceeds when they are None.

In `@source/api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc`:
- Around line 101-159: Add coverage for the LAMMPS-style InputNlist ingestion
path in this pair-exclusion test, because the current check_against_ref and
TYPED_TESTs only exercise the 6-arg DeepPot::compute route. Introduce a test
that calls the InputNlist compute overload on DeepPotPTExpt, using
pair_exclude_types and matching the pattern used in
test_deeppot_dpa1_graph_ptexpt.cc, so the edge/node tensor caching and
applyPairExclusion/applyPairExclusionNlist branch are validated against the
Python reference.

In `@source/tests/common/dpmodel/test_dpa1_call_graph_descriptor.py`:
- Around line 166-179: The comment in test_dpa1_call_graph_descriptor is
misleading because this block does not verify excluded-pair sw masking;
call_graph only returns grrg and rot_mat, and the current assertions only check
NaN/Inf. Update the test by either removing/rephrasing the stale comment to
match the actual coverage, or add a real assertion for zeroed excluded-pair
contributions by checking the relevant sw/edge-mask path through
se_atten.call_graph or the returned graph data. The earlier out[4] vs ref[4]
comparison already covers sw parity, so keep this block focused on what it truly
validates.

In `@source/tests/common/dpmodel/test_graph_atomic_parity.py`:
- Around line 318-344: The test builds unused model scaffolding that is never
referenced, so remove the dead setup from test_apply_pair_exclusion_idempotent.
Eliminate the DescrptDPA1, InvarFitting, and DPAtomicModel construction
(including the am variable) and keep only the inputs actually needed for
extend_input_and_build_neighbor_list, from_dense_quartet, and
apply_pair_exclusion. Make sure the test still covers both the empty and
non-empty pair_exclude_types branches.

In `@source/tests/common/dpmodel/test_neighbor_graph_builder.py`:
- Around line 419-427: Remove the redundant local import inside
test_neighbor_graph_builder’s setUpClass method: the file already imports
unittest, so keep the ImportError handling but drop the inner import and use the
existing unittest.SkipTest reference when ase is missing.
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📒 Files selected for processing (48)
  • deepmd/dpmodel/array_api.py
  • deepmd/dpmodel/atomic_model/base_atomic_model.py
  • deepmd/dpmodel/descriptor/dpa1.py
  • deepmd/dpmodel/model/make_model.py
  • deepmd/dpmodel/model/spin_model.py
  • deepmd/dpmodel/utils/__init__.py
  • deepmd/dpmodel/utils/default_neighbor_list.py
  • deepmd/dpmodel/utils/neighbor_graph/__init__.py
  • deepmd/dpmodel/utils/neighbor_graph/ase_builder.py
  • deepmd/dpmodel/utils/neighbor_graph/builder.py
  • deepmd/dpmodel/utils/neighbor_graph/env.py
  • deepmd/dpmodel/utils/neighbor_graph/graph.py
  • deepmd/dpmodel/utils/neighbor_graph/pairs.py
  • deepmd/dpmodel/utils/neighbor_graph/segment.py
  • deepmd/dpmodel/utils/neighbor_list.py
  • deepmd/dpmodel/utils/nlist.py
  • deepmd/pt/utils/nv_nlist.py
  • deepmd/pt_expt/entrypoints/main.py
  • deepmd/pt_expt/model/make_model.py
  • deepmd/pt_expt/train/training.py
  • deepmd/pt_expt/utils/nv_graph_builder.py
  • deepmd/pt_expt/utils/serialization.py
  • deepmd/pt_expt/utils/vesin_graph_builder.py
  • deepmd/pt_expt/utils/vesin_neighbor_list.py
  • doc/model/train-se-atten.md
  • source/api_cc/include/DeepPotPTExpt.h
  • source/api_cc/include/commonPT.h
  • source/api_cc/src/DeepPotPTExpt.cc
  • source/api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc
  • source/install/test_cc_local.sh
  • source/tests/common/dpmodel/test_apply_pair_exclusion.py
  • source/tests/common/dpmodel/test_apply_pair_exclusion_nlist.py
  • source/tests/common/dpmodel/test_center_edge_pairs.py
  • source/tests/common/dpmodel/test_dpa1_call_graph_block.py
  • source/tests/common/dpmodel/test_dpa1_call_graph_descriptor.py
  • source/tests/common/dpmodel/test_dpa1_graph_attention_parity.py
  • source/tests/common/dpmodel/test_graph_atomic_parity.py
  • source/tests/common/dpmodel/test_neighbor_graph_builder.py
  • source/tests/common/dpmodel/test_segment_softmax.py
  • source/tests/common/dpmodel/test_spin_model_legacy_routing.py
  • source/tests/infer/gen_dpa1_pairexcl.py
  • source/tests/pt_expt/descriptor/test_dpa1.py
  • source/tests/pt_expt/infer/test_graph_deepeval.py
  • source/tests/pt_expt/model/test_dpa1_graph_lower.py
  • source/tests/pt_expt/model/test_linear_model.py
  • source/tests/pt_expt/utils/test_graph_pt2_metadata.py
  • source/tests/pt_expt/utils/test_neighbor_list.py
  • source/tests/pt_expt/utils/test_vesin_graph_builder.py

Comment thread deepmd/pt_expt/entrypoints/main.py
Comment thread doc/model/train-se-atten.md Outdated
@codecov

codecov Bot commented Jul 5, 2026

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Codecov Report

❌ Patch coverage is 89.72810% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.52%. Comparing base (0acd0e5) to head (9f9da9c).

Files with missing lines Patch % Lines
.../api_cc/tests/test_deeppot_dpa1_pairexcl_ptexpt.cc 79.31% 12 Missing ⚠️
deepmd/pt_expt/utils/nv_graph_builder.py 0.00% 5 Missing ⚠️
deepmd/jax/jax2tf/make_model.py 20.00% 4 Missing ⚠️
deepmd/pt/utils/nv_nlist.py 40.00% 3 Missing ⚠️
source/api_cc/src/DeepPotPTExpt.cc 88.46% 0 Missing and 3 partials ⚠️
deepmd/jax/model/hlo.py 77.77% 2 Missing ⚠️
deepmd/pt_expt/model/make_model.py 60.00% 2 Missing ⚠️
deepmd/pt_expt/infer/deep_eval.py 94.44% 1 Missing ⚠️
deepmd/tf2/make_model.py 50.00% 1 Missing ⚠️
source/api_cc/include/commonPT.h 97.50% 0 Missing and 1 partial ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##           master    #5733      +/-   ##
==========================================
- Coverage   79.62%   79.52%   -0.11%     
==========================================
  Files        1014     1015       +1     
  Lines      115533   115818     +285     
  Branches     4276     4291      +15     
==========================================
+ Hits        91995    92102     +107     
- Misses      21994    22164     +170     
- Partials     1544     1552       +8     

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@wanghan-iapcm wanghan-iapcm force-pushed the feat-graph-pair-exclude branch from 58f771f to 9f2c31a Compare July 5, 2026 14:52
Comment on lines +14 to +16
from deepmd.dpmodel.utils.exclude_mask import (
PairExcludeMask,
)
Comment on lines +21 to +23
from deepmd.dpmodel.utils.exclude_mask import (
PairExcludeMask,
)
Comment on lines +25 to +27
from deepmd.dpmodel.utils.exclude_mask import (
PairExcludeMask,
)
@wanghan-iapcm wanghan-iapcm force-pushed the feat-graph-pair-exclude branch from d5b5032 to 9c96566 Compare July 6, 2026 09:51
Comment thread deepmd/tf2/make_model.py
Comment on lines +36 to +38
from deepmd.dpmodel.utils.exclude_mask import (
PairExcludeMask,
)
@wanghan-iapcm wanghan-iapcm added the Test CUDA Trigger test CUDA workflow label Jul 6, 2026
@wanghan-iapcm wanghan-iapcm requested a review from OutisLi July 6, 2026 11:48
@github-actions github-actions Bot removed the Test CUDA Trigger test CUDA workflow label Jul 6, 2026
@wanghan-iapcm wanghan-iapcm requested a review from iProzd July 6, 2026 11:48
Han Wang added 14 commits July 7, 2026 06:49
…layer and type_one_side

Add @pytest.mark.parametrize for attn_layer in [0, 2] and type_one_side in
[False, True] to test_exclude_types_graph_parity. Also adds the missing parity
assertion (graph vs dense at rtol=atol=1e-12, non-binding sel). Uses
smooth_type_embedding=False to avoid the known by-design softmax denominator
divergence in the dense smooth path.
Descriptor-level exclude_types is now graph-eligible (fully supported via
apply_pair_exclusion). Remove 'no exclude_types' from four docstrings/error
messages that list graph eligibility conditions. The gate condition was removed
in the NeighborGraph implementation; only tebd_input_mode='concat' restriction
remains.

- deepmd/pt_expt/entrypoints/main.py: freeze_model docstring (~502) + ValueError message (~589)
- deepmd/dpmodel/model/make_model.py: forward docstring (~317)
- deepmd/pt_expt/train/training.py: _model_uses_graph_lower docstring (~591)
build_neighbor_graph, build_neighbor_graph_ase, build_neighbor_graph_vesin,
build_neighbor_graph_nv all gain optional keyword-only pair_excl=None and
compact=False; default path = geometric search then apply_pair_exclusion.

_call_common_graph in pt_expt make_model wires atomic_model.pair_excl to
every builder call so model-level pair_exclude_types is applied at build time
(the atomic-model seam backstop stays as idempotent identity).

Oracle tests assert set-equality of the valid-edge set between
builder(pair_excl=X) and builder() + separate apply_pair_exclusion(X),
for dense (2 id + 3 oracle cases) and ase (2 cases); vesin gets 4 new tests
(2 identity, 2 oracle, parametrized over periodic).
…_neighbor_list/strategies (A4)

Extract the inline pair-exclusion from base_atomic_model.forward_common_atomic
into apply_pair_exclusion_nlist(nlist, atype_ext, pair_excl) in nlist.py.
The seam is refactored to call the named helper (idempotent backstop remains).

Add pair_excl=None to:
- build_neighbor_list (dpmodel, nlist.py)
- DefaultNeighborList.build
- VesinNeighborList.build (pt_expt)
- NvNeighborList.build (pt; CUDA-only, API parity)
- NeighborList base class signature

12 new unit tests covering: None/empty identity, excluded pairs -> -1,
-1 slot preservation, ghost-atom types, idempotence, torch namespace smoke,
build_neighbor_list oracle equivalence, DefaultNeighborList oracle,
VesinNeighborList oracle. NvNeighborList CUDA-only (not validated locally).
Han Wang added 2 commits July 7, 2026 06:53
…ce B)

The dpa1 forward computes its env matrix through the NeighborGraph
(from_dense_quartet -> edge_env_mat); the input stat used the dense EnvMat.
Route the dpa1 block's input stat through the SAME graph path so stat and
forward share one env-matrix implementation, with both exclusions folded in
exactly as the forward does (model-level via the pre-excluded nlist from Piece
A; descriptor-level via the emask mask).

BIT-IDENTICAL to the dense path, so stored davg/dstd are unchanged:
from_dense_quartet(compact=False) reuses the same neighbor set + padding
(row-major (frame,center,slot) edges), edge_env_mat mirrors EnvMat.call, and
the (E,4) output reshapes 1:1 to the dense (nf,nloc,nsel,4) tensor. Opt-in via
EnvMatStatSe(use_graph=True); se_e2_a/se_r are untouched. pt_expt inherits it
via autowrap; legacy pt stays dense (bit-identical, so cross-backend parity
holds).

Tests: graph==dense stat bit-identical (1e-15) for se_e2_a and the dpa1 block,
under no exclusion, model-level pair_exclude, and descriptor-level exclude.
_graph_env_mat (input stat) duplicated the dense-quartet -> (graph,
atype_local) setup from DescrptDPA1._call_graph_adapter almost verbatim
(coord reshape, mapping-None identity, from_dense_quartet compact=False,
xp_take_first_n local atype). Extract it as neighbor_graph.graph_from_dense_
quartet(coord_ext, atype_ext, nlist, mapping) -> (graph, atype_local) and route
both call sites through it. Pure extraction, bit-identical (dpa1 adapter +
stat parity tests unchanged).
@wanghan-iapcm wanghan-iapcm force-pushed the feat-graph-pair-exclude branch from 24cdad6 to 06e6ede Compare July 6, 2026 22:56
@wanghan-iapcm wanghan-iapcm requested a review from njzjz July 7, 2026 00:24

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Thanks for pushing this toward a build-seam implementation. I agree with the direction, but I don't think this is safe to merge yet: several lower/precomputed-entry paths still bypass the new pair-exclusion seam, and the input-stat cache can be reused across different model-level pair_exclude_types.

Requesting changes so the exclusion behavior is closed over all external entry points before merge. CI being green is expected here because the missing paths are mostly with-comm / direct edge / precomputed-neighbor cases that the current parity tests don't exercise.

Reviewed by OpenClaw 2026.6.11 (e085fa1), model: custom-chat-jinzhezeng-group/gpt-5.5

// never re-applies it; this is the single application site on the C++
// dense route.
const at::Tensor excl_nlist = deepmd::applyPairExclusionNlist(
firstneigh_tensor, atype_Tensor, pair_exclude_table_, ntypes);

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This only covers the non-comm dense route. The use_with_comm dense branch above still calls run_model_with_comm(..., firstneigh_tensor, ...) directly, so a .pt2 with pair_exclude_types will still include excluded pairs in multi-rank / with-comm inference. Please apply applyPairExclusionNlist before the with-comm call too, and add a with-comm regression test.

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Fixed in ff28370: applyPairExclusionNlist is now applied on firstneigh_tensor before run_model_with_comm, mirroring the single-rank dense site. Added a with-comm regression test on a message-passing DPA3 model (test_pair_deepmd_mpi_dpa3_pairexcl_matches_single_rank) — MP(-n 2) ≡ SP(-n 1) AND excluded ≠ no-exclusion baseline — validated on a clean GPU box. Full path-by-path matrix + rationale in the summary (cell 3).

@@ -1238,13 +1268,26 @@ void DeepPotPTExpt::compute(ENERGYVTYPE& ener,
edge_tensors.edge_index_ext, edge_tensors.edge_mask,

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The lower_input_kind == "edge_vec" paths still pass the original edge_tensors.edge_mask into run_model_edges* without applying pair_exclude_table_. This affects both this non-comm path and the with-comm edge path above. Since the exported lower no longer re-applies model-level pair_exclude_types, the edge schema needs an applyPairExclusion-equivalent mask at this ingestion seam as well. Please be careful about the type space: fold_to_local=false needs extended atypes, while folded graph/edge inputs need local atypes.

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Out of scope — the edge lower is a pt-backend export (SeZM/DPA4 via deepmd/pt/entrypoints/freeze_pt2.py, lower_input_kind="edge_vec"); pt_expt serialization only emits "graph"/"nlist". This PR does not touch the pt backend (its whole pt footprint is nv_nlist.py, +28), and the pt backend still applies exclusion at consume time (pt/model/atomic_model/base_atomic_model.py:363-366), so the edge .pt2 bakes exclusion into the exported graph — the C++ edge consumers correctly do NOT re-apply it (that would double-apply). So exclusion isn't dropped here. Details in the summary ("Out of scope — the edge lower").

selection is a pure performance choice and results are unchanged.
"""
method = self._neighbor_graph_method
# Model-level ``pair_exclude_types`` is a graph-BUILD transform

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This wires model-level exclusion into the graph/nlist builders, but the direct edge fast path earlier in _prepare_lower_inputs still bypasses it: self._nlist_builder.build(..., return_mode="edges") returns an edge schema that is passed straight to the edge lower. vesin_neighbor_list.py also rejects pair_excl for return_mode="edges", so the caller needs to post-filter the returned edge schema / mask with the same graph-style exclusion. Please add a DeepEval lower_input_kind="edge_vec" + vesin/nv + pair_exclude_types test.

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Same as the C++ edge path: this consumes a pt-backend edge .pt2 (SeZM/DPA4) whose exported graph already bakes in exclusion (the pt backend still applies it at consume time), so the return_mode="edges" fast path correctly does not post-filter. Out of scope for this dpmodel-derived-backend refactor. See the summary.

# nlist. Excluded pairs then behave exactly like empty slots
# (env_mat 0, still counted) -- identical to descriptor-level
# exclude_types, replacing the previous accumulation-deselect.
pair_excl=pair_excl,

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Now that input statistics depend on model-level pair_exclude_types through the pre-excluded nlist, the stat cache key also needs to include a canonicalized exclusion set. EnvMatStatSe.get_hash() still hashes descriptor shape/cutoff/sel/etc. but not pair_exclude_types, so changing only the exclusion list can silently reuse stale stats.

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Valid, but pre-existing and deferred: stats depended on pair_exclude_types before this PR too (via the accumulation-deselect this PR replaced with a build-time nlist mask), and get_hash() never included it. It's also not cleanly fixable here — the model-level exclusion isn't visible at get_hash time (it arrives in sample data; path / get_hash() is computed before sampling). Tracking as a separate fix so this PR stays scoped to the regressions it introduced. See the summary ("Deferred — stat-cache hash").

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One more blocker I could not place as an inline review comment because the file is not touched in this PR diff:

deepmd/jax/jax_md/__init__.py:_eval_with_jax_md_neighbor() converts a precomputed JAX-MD dense neighbor list to lower inputs and then calls model.call_lower(...) directly. With this PR, model-level pair_exclude_types is no longer re-applied inside BaseAtomicModel.forward_common_atomic(), so .jax models that receive a precomputed JAX-MD neighbor list can still include excluded pairs. The normal path that builds its own neighbor list is now pre-excluded, so this creates an entry-point mismatch.

Please either apply the model's pair exclusion to the converted nlist before call_lower, or route this path through a wrapper that folds the exclusion at the same build seam.

Reviewed by OpenClaw 2026.6.11 (e085fa1), model: custom-chat-jinzhezeng-group/gpt-5.5

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Model-level pair_exclude_types is silently dropped on the C++ multi-rank (message-passing) dense path and the edge-schema paths

This PR moves model-level pair_exclude_types from a consume-time transform to a build-time (ingestion-seam) transform: BaseAtomicModel.forward_common_atomic / forward_common_atomic_graph no longer apply it, so the exported .pt2 lower no longer carries it and the C++ ingestion seam becomes the only application site.

But the seam was added to only two of the run paths in DeepPotPTExpt::compute:

  • ✅ single-rank graph → run_model_graph (applyPairExclusion on edge_mask)
  • ✅ single-rank dense → run_model (applyPairExclusionNlist on the nlist)

The following paths pass the raw tensors and therefore silently ignore model-level exclusion:

  • run_model_with_comm — multi-rank dense (DeepPotPTExpt.cc:842). use_with_comm = has_comm_artifact_ && multi_rank (:521), i.e. exactly the message-passing (DPA2/DPA3) path under mpirun.
  • run_model_edges / run_model_edges_with_comm — edge schema, e.g. SeZM (:822 / :835 / :851 / :1265).

Consequences

  • A message-passing model with pair_exclude_types gives multi-rank ≠ single-rank, and it is a regression vs. before this PR (exclusion used to be baked into the .pt2, covering every path).
  • Edge-schema models lose exclusion on every rank.
  • No fail-fast — the output is silently wrong.

dpa1 (this PR's focus) is unaffected: it has no comm artifact, so multi-rank still routes through run_model. The gap is latent for the model types this PR doesn't target, but the shared base-class change degrades them with no guard.

Why it's easy to miss — the narrative contradicts the code

  • The PR description says the atomic-model seam "stays as idempotent backstop" and "Multi-rank (mpirun) exclusion shares the same seam"; neither holds now.
  • vesin_neighbor_list.py docstring and pt_expt/model/make_model.py (~L472) still describe an "idempotent backstop", contradicting the "NOT applied here" comments in base_atomic_model.py.

Requested fix (keeping decision #18's single-build-seam design)

Apply the transform on every C++ run path — applyPairExclusionNlist on the run_model_with_comm nlist, and applyPairExclusion on the edge_mask for the edge / edge-with-comm paths — and add a fail-fast for any pair_exclude_types × path combination that genuinely cannot be covered. Please also reconcile the stale "backstop" comments/docstrings so the single-owner contract reads consistently.

// #18/A4): the exported dense lower consumes a pre-excluded nlist and
// never re-applies it; this is the single application site on the C++
// dense route.
const at::Tensor excl_nlist = deepmd::applyPairExclusionNlist(

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Single-rank dense applies exclusion here, but its siblings do not: run_model_with_comm (L842, multi-rank dense) and run_model_edges / run_model_edges_with_comm (L822 / L835 / L851 / L1265, edge schema) pass the raw tensors. Since the exported .pt2 no longer applies model-level exclusion (removed from forward_common_atomic), those paths silently drop it, so multi-rank ≠ single-rank for message-passing models and edge-schema models lose it entirely. Please thread applyPairExclusionNlist / applyPairExclusion through them too (or fail-fast).

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Addressed in ff28370. The dense multi-rank path (run_model_with_comm) now applies applyPairExclusionNlist — verified on a message-passing DPA3 with-comm model (MP≡SP + active-vs-baseline, clean-env). The edge-schema paths are intentionally left alone: they're a pt-backend lower (SeZM/DPA4) that still bakes exclusion into the exported graph, so re-applying in C++ would double-apply. Stale "backstop" docstrings reconciled. Full SP/MP × dense/graph matrix + the fail-fast reasoning for cell 6 in the summary.

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C++ hot path uploads the constant pair-exclusion table to the device every step

applyPairExclusion (commonPT.h:547-551) and applyPairExclusionNlist (:602-606) rebuild the keep table from the std::vector and copy it to the device on every compute() call (i.e. every MD step):

const auto table =
    torch::from_blob(const_cast<int*>(type_mask_table.data()),
                     {static_cast<std::int64_t>(type_mask_table.size())},
                     torch::TensorOptions().dtype(torch::kInt32))
        .clone()
        .to(device);

pair_exclude_table_ is a compile-time constant fixed in init(), and the device is fully determined at init (gpu_id / gpu_enabled), so this is a per-step CPU clone + H2D upload (plus a stream op / possible sync on CUDA) of a value that never changes. It is guarded by the empty-table early-return, so only exclusion-enabled models pay it — but for those it is pure per-step waste on the hot path.

Proposed fix — upload once at init, pass the device tensor in

Store the table as a device-resident torch::Tensor built once, and let the two helpers consume it directly (an undefined tensor => identity, mirroring the current empty-vector early-exit). buildPairExcludeTable stays a pure, unit-testable vector builder.

1. Member (DeepPotPTExpt.h) — change the type:

// Device-resident (ntypes+1)^2 keep table, uploaded once in init.
// Undefined tensor => no model-level exclusion.
torch::Tensor pair_exclude_table_;

2. One-time upload in init (device known here; same construction as compute() at :463-466):

std::vector<int> tbl = deepmd::buildPairExcludeTable(ntypes, pair_exclude_types);
if (!tbl.empty()) {
  torch::Device device(torch::kCUDA, gpu_id);
  if (!gpu_enabled) {
    device = torch::Device(torch::kCPU);
  }
  pair_exclude_table_ =
      torch::from_blob(tbl.data(),
                       {static_cast<std::int64_t>(tbl.size())}, torch::kInt32)
          .clone()
          .to(device);
}

3. Helpers take the prebuilt tensor and drop the per-call from_blob/clone/to:

inline torch::Tensor applyPairExclusion(const torch::Tensor& edge_index,
                                        const torch::Tensor& edge_mask,
                                        const torch::Tensor& atype,
                                        const torch::Tensor& type_mask_table,
                                        const int ntypes) {
  if (!type_mask_table.defined()) {
    return edge_mask;  // identity
  }
  const auto src = edge_index.index({0});
  const auto dst = edge_index.index({1});
  const auto type_ij =
      atype.index_select(0, dst) * (ntypes + 1) + atype.index_select(0, src);
  const auto keep = type_mask_table.index_select(0, type_ij).to(torch::kBool);
  return torch::logical_and(edge_mask, keep);
}

applyPairExclusionNlist mirrors this (keep = type_mask_table.index_select(0, type_ij.reshape({-1})).reshape({nf, nloc, nnei})). The table already lives on the model device (== edge_mask / nlist device), so index_select needs no per-call transfer.

This keeps the single-owner design intact, removes the per-step allocation + H2D entirely, and is self-contained: the helpers are called only inside DeepPotPTExpt::compute (the gtest drives them through the public API), so no other call site changes.

Comment thread source/api_cc/include/commonPT.h Outdated

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The one canonical exclusion transform is a sound design, but moving it to the build seam and dropping the forward_common_atomic* backstop makes exclusion fail-open: those methods now document a "nlist/graph is already pre-excluded" contract, so any ingestion entry point that skips the build seam silently includes excluded pairs instead of erroring. For a security-relevant feature (exclusion forces zero interaction between types), silent inclusion is the dangerous failure mode — and the leaks are being found one at a time (jax_md call_lower, DeepEval return_mode="edges", the C++ with-comm / edge-schema paths, the env_mat_stat hash key already flagged by njzjz-bot / OutisLi), which suggests there's no enumerated inventory of entry points.

Requesting changes on that architectural point: could we either keep a cheap fail-safe guard (an eager/debug assertion that inputs entering forward_common_atomic* are exclusion-applied), or enumerate every ingestion path in this PR with one regression test each, so coverage is complete-by-construction? The contract boundary is also currently untested (all exclusion tests go through the pre-excluding build seam), and the PR description's "stays as idempotent backstop" wording is now inaccurate at HEAD ("never re-applied here") — worth correcting so the blast radius reads right.

Han Wang added 2 commits July 8, 2026 16:53
…) path

Address the pair_exclude_types review on deepmodeling#5733 (njzjz-bot #1, OutisLi).

Decision deepmodeling#18/A4 moved model-level pair_exclude_types to a build-time C++
ingestion seam, but the seam was wired into only the single-rank dense
(applyPairExclusionNlist) and graph (applyPairExclusion) routes. The
multi-rank dense path (run_model_with_comm, DeepPotPTExpt.cc) passed the raw
nlist, so a message-passing .pt2 with pair_exclude_types silently included
excluded pairs multi-rank (multi-rank != single-rank). Apply the SAME seam
before run_model_with_comm, mirroring the single-rank dense site exactly (the
cross-rank ghost exchange happens inside run_model_with_comm and does not
change the nlist's meaning, so per-rank pre-exclusion is correct).

Scope: the edge-schema lowers (run_model_edges*) are intentionally NOT touched
-- the edge lower is a pt-backend export (SeZM/DPA4 via
pt/entrypoints/freeze_pt2.py) and the pt backend still applies exclusion at
consume time, so the edge .pt2 bakes exclusion into the graph. The MP
message-passing GRAPH lower stays fail-fast (PR-G).

Perf (OutisLi): buildPairExcludeTable's flat table was rebuilt and copied H2D
on every compute() (MD) step. Upload it once in init as a device torch::Tensor
member (pair_exclude_table_); the seam helpers now take the prebuilt tensor and
index_select it directly (undefined tensor => identity, mirroring the old
empty-vector early-exit). No per-step allocation or transfer.

Docs: reconcile the stale "idempotent backstop" wording (vesin_neighbor_list,
pt_expt/model/make_model) with the single-owner design -- both dpmodel seams
(forward_common_atomic{,_graph}) now say "NOT applied here"; the build site is
the sole owner.

Test (cell 5): add a dpa1 MP-graph + pair_exclude_types parity test to
test_lammps_dpa1_graph_pt2.py -- MP (-n 2) == SP (-n 1) on the excluded model,
plus a cross-check that the excluded run differs from the same-weights
no-exclusion baseline (so a silently-dropped exclusion on both ranks cannot
pass trivially). Reuses the existing MPI harness with a pb= override.

Verified locally (CPU): 8/8 single-rank pairexcl gtests pass after the perf
refactor; all 6 tests in test_lammps_dpa1_graph_pt2.py pass (incl. the new
multi-rank exclusion test).
Add deeppot_dpa3_pairexcl_mpi.pt2 (gen_dpa3.py, same weights as
deeppot_dpa3_mpi.pt2 + pair_exclude_types=[[0,1]]) and an MP==SP + active-vs-
baseline test exercising the run_model_with_comm pair-exclusion seam (cell 3).
To be validated on a clean env; local build_cpu MPI is inconsistent.
@github-actions github-actions Bot added the LAMMPS label Jul 8, 2026
@wanghan-iapcm

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Pair-exclusion coverage across the C++ run paths

Thanks both — this was the right thing to flag. The build-seam refactor (decision #18/A4) made the C++ ingestion seam the single owner of model-level pair_exclude_types, and the seam was only wired into two of the run paths. Here is the full SP/MP × dense/graph matrix (use_with_comm = has_comm_artifact_ && multi_rank; "comm" = message-passing DPA2/DPA3):

# Cell Code path Exclusion Status
1 SP dense else→dense, applyPairExclusionNlist ✅ applied works
2 MP + dpa1 dense non-MP ⇒ no comm ⇒ else→dense ✅ applied works
3 MP + comm dense run_model_with_comm ❌ → ✅ fixed now applied
4 SP graph else→graph, applyPairExclusion ✅ applied works
5 MP + dpa1 graph non-MP ⇒ else→graph, n_node=nall_real ✅ applied now tested
6 MP + comm graph fail-fast (PR-G) n/a out of scope

Cell 6 is not a silent drop — it hard-throws ("Multi-rank message-passing graph … not yet supported (PR-G)"), so exclusion is moot there.

Fixed — cells 3 & 5

  • Cell 3 (run_model_with_comm, njzjz-bot error duing compilation of user-deepmd module in lammps #1 / OutisLi): now applies applyPairExclusionNlist on the nlist before the with-comm dense call, mirroring the single-rank site exactly (the cross-rank ghost exchange happens inside run_model_with_comm and does not change the nlist's meaning, so per-rank pre-exclusion is correct). Verified end-to-end on a message-passing DPA3 model (use_loc_mapping=False, with-comm): test_pair_deepmd_mpi_dpa3_pairexcl_matches_single_rank asserts MP(-n 2) ≡ SP(-n 1) and that the excluded run differs from the same-weights no-exclusion baseline (so a silent drop on both ranks can't pass trivially).
  • Cell 5 (dpa1 MP graph): already correct — it shares the SP graph seam (line :899, n_node = nall_real) — but was untested with a non-empty exclusion set. Added test_pair_deepmd_mpi_dpa1_pairexcl_graph_matches_single_rank (same MP≡SP + active-vs-baseline shape).

Perf (OutisLi)

The per-step table rebuild + H2D upload is removed: pair_exclude_table_ is now a device torch::Tensor uploaded once in init; the two helpers take the prebuilt tensor and index_select it directly (undefined tensor ⇒ identity, mirroring the old empty-vector early-exit). buildPairExcludeTable stays a pure vector builder.

Out of scope — the edge lower (njzjz-bot #2, #3)

The edge-schema lower (run_model_edges* and the deep_eval return_mode="edges" fast path) is a pt-backend export — SeZM/DPA4 via deepmd/pt/entrypoints/freeze_pt2.py (lower_input_kind="edge_vec"); pt_expt serialization only ever emits "graph"/"nlist". This PR's entire pt-backend footprint is one file (deepmd/pt/utils/nv_nlist.py, +28), and the pt backend still applies exclusion at consume time (deepmd/pt/model/atomic_model/base_atomic_model.py:363-366), so a SeZM/DPA4 edge .pt2 bakes exclusion into the exported graph — the C++/Python edge consumers correctly do not re-apply it (doing so would double-apply). This refactor only moves the ownership seam for the dpmodel-derived backends (pt_expt/jax/tf2); the pt-backend edge path is unchanged and unaffected, so nothing is dropped there.

Deferred — stat-cache hash (njzjz-bot #4)

Valid, but pre-existing: input statistics depended on model-level pair_exclude_types before this PR too (via the accumulation-deselect that this PR replaced with a build-time nlist mask), and EnvMatStatSe.get_hash() never included it. It's also awkward to fix here — the model-level exclusion isn't visible at get_hash time (it arrives in the sample data, and path / get_hash() is computed before sampling). Tracking it as a separate fix so this PR stays scoped to the regressions it actually introduced.

Also (OutisLi): stale "idempotent backstop" wording in vesin_neighbor_list.py and pt_expt/model/make_model.py reconciled with the single-owner design (both dpmodel seams now read "NOT applied here").


Commits: ff28370 (cell 3 fix + perf + docs + cell 5 test) and 0ebe3e2 (DPA3 cell-3 regression test). The DPA3 multi-rank exclusion test was validated on a clean GPU box (the fixture is regenerated by gen_dpa3.py in CI).

Han Wang added 3 commits July 8, 2026 19:47
Address iProzd's architectural review on deepmodeling#5733: decision deepmodeling#18/A4 moved
pair_exclude_types to the build seam and dropped the consume-time backstop in
forward_common_atomic{,_graph}, making exclusion fail-OPEN -- any ingestion
path that skips the build seam would silently INCLUDE excluded pairs (the
dangerous direction for an exclusion feature).

Add _assert_nlist_pair_excluded / _assert_graph_pair_excluded: when pair_excl
is set, verify no real neighbour/active edge carries an excluded type pair (a
leak = the build seam was skipped) and raise a clear AssertionError otherwise.
numpy-eager ONLY -- gated on array_api_compat.is_numpy_array, so it is a no-op
under torch.export / jax jit (data-dependent, can't be traced) and in compiled
production; the exported-.pt2 / C++ ingestion paths are covered by their own
ingestion-site regression tests. Verified pt_expt make_fx/export still traces
(guard skipped for torch tensors).

Rewrite the two seam-contract tests (test_graph_atomic_parity) to assert the
guard REJECTS a non-excluded input (the previously-untested contract boundary),
keeping the build-time positive control; fix test_dp_atomic_model
test_self_consistency to feed a pre-excluded nlist (matches test_excl_consistency).
641 common/dpmodel tests pass.
Close the jax-md leak iProzd flagged: _eval_with_jax_md_neighbor built the
lower nlist from the JAX-MD neighbor list without model-level
pair_exclude_types, then called call_lower -- which no longer re-applies it
(decision deepmodeling#18/A4) -- so excluded pairs were silently included (fail-open). Fold
apply_pair_exclusion_nlist in at this ingestion seam, mirroring DeepEval's
nlist path. Guarded on the model actually carrying pair_excl, so the mock-model
jax-md tests are unaffected.

Test (runs without jax_md via the DenseNeighbor path): an excluded (0,1) pair
drops the only edge -> energy 0 vs 0.04 without exclusion.
@wanghan-iapcm

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@iProzd — thanks, this is the right framing and I agree: dropping the consume-time backstop made exclusion fail-open, which is why the leaks were surfacing one at a time. I've taken both remedies you offered — a fail-safe guard and an enumerated inventory — plus the doc fix.

1. Eager fail-safe guard (5ad1f05)

forward_common_atomic{,_graph} now carry _assert_nlist_pair_excluded / _assert_graph_pair_excluded: when pair_excl is set, a real neighbour (nlist ≥ 0) / active edge (edge_mask True) whose type pair is excluded is a leak → loud AssertionError. It's numpy-eager only (gated on array_api_compat.is_numpy_array), so it's a no-op under torch.export / jax jit (the check is data-dependent and can't be traced) and in compiled production — verified pt_expt make_fx/export still traces. This makes the whole dpmodel/jax class fail-closed by construction, not just the known instances.

The contract boundary you noted as untested is now tested: the two test_graph_atomic_parity seam tests were rewritten to assert the guard rejects a non-excluded input (previously they asserted the old fail-open pass-through).

2. Enumerated ingestion inventory

Added to the PR description — every entry point that builds a nlist/graph reaching the exclusion-owning lower, where each applies exclusion, and its coverage. It surfaced exactly the class of leak you predicted: the jax-md call_lower path built the lower nlist without exclusion. Fixed in 5c5889c (fold apply_pair_exclusion_nlist at the seam) with a regression test that runs without jax_md (via the DenseNeighbor path): an excluded (0,1) pair drops the only edge → energy 0 vs 0.04.

The other paths you cited are covered: the C++ with-comm dense (cell 3) and DeepEval graph/nlist paths apply the seam and now have tests (incl. a multi-rank DPA3 MP≡SP exclusion test on a message-passing model); the DeepEval/C++ edge (return_mode="edges" / run_model_edges*) is a pt-backend lower (SeZM/DPA4) whose exported graph still bakes exclusion in at consume time, so it is intentionally out of scope for this dpmodel-derived-backend refactor (re-applying would double-apply); the env_mat_stat hash key is pre-existing (stats already depended on exclusion before this PR; the key never included it) and tracked as a separate fix.

3. Doc fix

Corrected the PR description: the forward_common_atomic* / C++ seam is the single owner, not an "idempotent backstop" — the wording now matches HEAD's "NOT applied here" and the fail-safe guard, so the blast radius reads right.

Net: exclusion is fail-closed for the dpmodel/jax paths (guard) and complete-by-inventory for the compiled/C++ paths (tests), with the one genuine gap the inventory found (jax-md) now closed.

pull Bot pushed a commit to ishandutta2007/deepmd-kit that referenced this pull request Jul 8, 2026
…deepmodeling#5747)

## Summary

Adds NeighborGraph (graph-native lower) support for the dpa1 descriptor
with `tebd_input_mode="strip"`, closing the last descriptor-level gap
that forced strip-mode models (and `se_atten_v2`, which is
strip-by-construction) onto the legacy dense path.

The dense strip branch factorizes the per-neighbor feature as `gg =
gg_s*gg_t + gg_s` — a radial-only geometric embedding times a type-pair
strip embedding (optionally switch-smoothed). Because this has **no
neighbor-axis coupling**, it maps to the graph path edge-for-edge. The
change is:

- **Kernel** (`DescrptBlockSeAtten`): a new per-edge helper
`_graph_edge_gg_strip` (op-for-op mirror of the dense strip branch,
including the `center*ntypes_pad + nei` nei-fastest two-side table
layout and `int64` gather indices), selected by a `concat`/`strip`
branch in `call_graph`.
- **Routing** (`DescrptDPA1.uses_graph_lower`): admits `strip`, while
keeping compressed descriptors and `exclude_types` on the dense path
(they have no graph kernel here). `se_atten_v2` inherits this and
becomes graph-eligible for free.
- **pt_expt**: the two graph `make_fx` export tests are parametrized
over `tebd_input_mode` to prove the strip kernel is fx-traceable.

No new op, no attention/`segment_sum` change, no C++/serialization
change.

## Scope

This PR is deliberately **independent of deepmodeling#5733** (graph
`exclude_types`). It does **not** change `exclude_types` eligibility —
the `uses_graph_lower` `and not exclude_types` gate and the `call_graph`
`exclude_types` raise are both kept. When both land, whichever merges
second resolves a small (2–3 line) mechanical conflict at
`uses_graph_lower` / the `call_graph` guard.

## Test plan

- Block-level graph-vs-dense strip parity at `rtol=atol=1e-12` over
`type_one_side × smooth` (attn=0) and `type_one_side` (attn=2,
non-smooth).
- Descriptor-level routed-`call` vs `_call_dense` parity over
`type_one_side × smooth × attn_layer` (incl. attn=2 + smooth=True,
bit-exact via the `static_nnei` adapter), plus a negative-contract gate
test (compressed → dense, strip+`exclude_types` → dense).
- `se_atten_v2` eligibility + graph-vs-dense parity (replaces the
obsolete "strip stays dense" test).
- pt_expt strip `make_fx` export; cross-backend consistency strip cases
now route pt_expt through the graph adapter.

Validated on **CPU** and on **GPU (Tesla T4, cuda:0)**: pt_expt dpa1 50
passed, consistency strip 22 passed + `se_atten_v2` 110 passed, dpmodel
strip suites 46 passed. No tolerances relaxed, no tests skipped.

## Known limitations

- **Compression** stays on the dense path by design (strip-only
tabulation has no graph kernel); the gate excludes `self.compress`.
- **`exclude_types`** stays dense (out of scope — owned by deepmodeling#5733).
- **jax** graph lower remains energy-only (analytical force on the graph
route is a separate follow-up).
- The graph path's `segment_sum`→`index_add` is atomic/non-deterministic
on CUDA (1–2 fp64 ULP), inherent to atomic scatter; GPU parity validated
within tolerance.
- Pre-existing (not introduced here): a softmax `RuntimeWarning` on the
shared attention path (max over fully-masked segments), also present on
the concat path.



<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary

* **New Features**
* Added graph-based execution support for the additional stripped
type-embedding mode.

* **Bug Fixes**
* Updated graph routing eligibility: compressed descriptors and
excluded-type configurations now reliably fall back to dense execution;
graph routing is disabled when compression is enabled.

* **Tests**
* Added bit-exact parity tests between graph and dense paths for the new
stripped mode (including routing eligibility checks).
  * Expanded FX graph export/trace coverage for both embedding modes.
* Adjusted neighbor-list fallback validation with model-specific
tolerance handling and added a new smooth variant.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Han Wang <wang_han@iapcm.ac.cn>
@wanghan-iapcm wanghan-iapcm requested review from OutisLi and iProzd July 9, 2026 10:29
Han Wang added 3 commits July 9, 2026 18:44
…xclude

# Conflicts:
#	deepmd/dpmodel/descriptor/dpa1.py
#	deepmd/jax/model/hlo.py
#	source/tests/common/dpmodel/test_dpa1_call_graph_block.py
#	source/tests/common/dpmodel/test_dpa1_call_graph_descriptor.py
#	source/tests/pt_expt/descriptor/test_dpa1.py
…no recompile

The pair-exclusion DPA3 MPI fixture was a second full inductor compile (~2 with-
comm compiles, expensive). Model-level pair_exclude_types is applied at the C++
ingestion seam (from metadata.json) and the Python DeepEval build seam (from the
serialized model.json), NOT baked into the exported graph -- so the compiled AOTI
artifact (incl. the nested with-comm .pt2) is byte-identical to deeppot_dpa3_mpi.pt2.
Derive the pairexcl fixture by copying that archive and patching pair_exclude_types
into BOTH JSON blobs (metadata.json for C++, model.json for Python) so the two
paths agree. Verified via DeepEval: the derived model is bit-identical to a full
recompile (E=2.5311 vs baseline 2.4916) and differs from the no-exclusion baseline.
deeppot_dpa3_mpi.pt2 stays the exact no-exclusion baseline for the reference and
active-vs-baseline tests.
Apply the metadata-patch fixture derivation (a95a958) to gen_dpa1_pairexcl.py
and factor the logic into gen_common.derive_pair_exclude_pt2 (used by both
gen_dpa3.py and gen_dpa1_pairexcl.py).

gen_dpa1_pairexcl.py generated three inductor-compiled models
(_none/_graph/_nlist). _graph has the same weights and lower_kind as the _none
graph baseline and differs only in pair_exclude_types, so it is now DERIVED
from _none by patching the archive -- no third compile. _nlist is a different
lower_kind (different exported graph) so it stays a compile. 3 compiles -> 2.
Verified via DeepEval: the derived _graph is bit-identical to a full recompile
(E active vs the _none baseline). gen_dpa3.py refactored to use the shared
helper.
OutisLi
OutisLi previously requested changes Jul 9, 2026

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Retracted — posted prematurely and partly out of scope. Please disregard. Apologies for the noise.

@OutisLi OutisLi dismissed their stale review July 9, 2026 11:51

Retracted by author; posted prematurely and partly out of scope.

Audit of the PR's added docstrings against the package numpydoc convention
(CLAUDE.md): public functions were already compliant; fix the private/helper
idiom mismatches so they match their files' sibling methods.

- base_atomic_model._assert_{nlist,graph}_pair_excluded: add Parameters + Raises
  sections (siblings like _finalize_atomic_ret use full numpydoc).
- env_mat_stat._graph_env_mat: add Parameters + Returns (siblings iter/__call__
  use numpydoc).
- jax2tf/make_model.model_call_from_call_lower: revert docstring to its original
  one-liner (the function documents no other params); the pair_excl rationale is
  already an inline comment at the application site, so the single-param prose
  was redundant + inconsistent.
- gen_common.derive_pair_exclude_pt2: concise summary + typed Parameters, move
  the decision/verification cross-refs into a Notes section (not floating prose).

No Google-style/See-Also/RTD-breaking issues found.
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