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[CI] Wire untethered test files into CI jobs - #49340

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njhill:ci-wire-untethered-tests
Jul 28, 2026
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njhill merged 11 commits into
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njhill:ci-wire-untethered-tests

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@njhill njhill commented Jul 21, 2026

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An audit of .buildkite pytest targets against tests/**/test_*.py found dozens of test files that no CI job ever runs. Wire in the ones that pass on current main (every set validated on B200-class hardware, or CPU-only for CPU tests, before wiring):

  • tests/kernels root: after the kernels/ subdir categorization (Categorize tests/kernels/ based on kernel type #16799), the root stopped being collected, and 19 files added since then never ran. Add a catch-all B200 job collecting the root (so future files are wired by default), excluding files with dedicated jobs and 8 files that are currently failing on main (35 failures total, enumerated in the job comment for their owners to fix and re-enable). The remaining 11 files pass (2500+ tests).
  • NIXL PD edge case script: existed with a runner script that nothing invoked. run_edge_case_test.sh hardcoded GPU ids 4/5 (an 8-GPU dev box assumption, likely why it was never wired) - make them env-overridable and set 0/1 in the job. Validated passing. (The sibling spec_decode_acceptance_test.sh is NOT orphaned: the wired config-sweep job invokes it transitively.)
  • v1/determinism: test_matmul_batch_invariant.py and test_cutlass_batch_invariance.py (42 passed) and test_online_batch_invariance.py (3 passed, ~5 min server-based) -> Batch Invariance (B200). The first two were added after the jobs' explicit file lists existed; the online test was split out of test_batch_invariance.py days before the first batch-invariance job was created and has never run in CI. Note the jobs' source_file_dependencies already covered the whole determinism dir, so PRs touching these files triggered the jobs without running them.
  • models: test_adapters.py (regression test for the [Bugfix][Pooling] Fix silent weight corruption with buffer-reusing iterators #39650 silent weight-corruption fix; passes CPU-only) -> Basic Models Test (Other CPU); test_deepseek_v4_mega_moe.py (CUDA unit test) -> Deepseek V4 Kernel Test (B200).
  • Singles (all validated passing): cuda/test_cuda_compatibility_path.py -> Platform Tests (CUDA); spec_decode/test_custom_proposer.py -> Spec Decode Ngram + Suffix; tools/test_config_validator.py and v1/test_kv_cache_spec_registry.py -> CPU jobs; v1/test_tensor_ipc_queue.py -> Engine (1 GPU); tracing/test_loading_tracing.py -> Metrics, Tracing (already installs the OTel deps it needs).

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This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

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@mergify mergify Bot added the kv-connector label Jul 21, 2026
@njhill njhill added the ready ONLY add when PR is ready to merge/full CI is needed label Jul 21, 2026
An audit of .buildkite pytest targets against tests/**/test_*.py found
dozens of test files that no CI job ever runs. Wire in the ones that
pass on current main (every set validated on B200-class hardware, or
CPU-only for CPU tests, before wiring):

- tests/kernels root: after the kernels/ subdir categorization (vllm-project#16799),
  the root stopped being collected, and 19 files added since then never
  ran. Add a catch-all B200 job collecting the root (so future files
  are wired by default), excluding files with dedicated jobs and 8
  files that are currently failing on main (35 failures total,
  enumerated in the job comment for their owners to fix and re-enable).
  The remaining 11 files pass (2500+ tests).
- NIXL PD edge case script: existed with a runner script that nothing
  invoked. run_edge_case_test.sh hardcoded GPU ids 4/5 (an 8-GPU dev
  box assumption, likely why it was never wired) - make them
  env-overridable and set 0/1 in the job. Validated passing. (The
  sibling spec_decode_acceptance_test.sh is NOT orphaned: the wired
  config-sweep job invokes it transitively.)
- v1/determinism: test_matmul_batch_invariant.py and
  test_cutlass_batch_invariance.py (42 passed) and
  test_online_batch_invariance.py (3 passed, ~5 min server-based)
  -> Batch Invariance (B200). The first two were added after the jobs'
  explicit file lists existed; the online test was split out of
  test_batch_invariance.py days before the first batch-invariance job
  was created and has never run in CI. Note the jobs'
  source_file_dependencies already covered the whole determinism dir,
  so PRs touching these files triggered the jobs without running them.
- models: test_adapters.py (regression test for the vllm-project#39650 silent
  weight-corruption fix; passes CPU-only) -> Basic Models Test (Other
  CPU); test_deepseek_v4_mega_moe.py (CUDA unit test) -> Deepseek V4
  Kernel Test (B200).
- Singles (all validated passing): cuda/test_cuda_compatibility_path.py
  -> Platform Tests (CUDA); spec_decode/test_custom_proposer.py -> Spec
  Decode Ngram + Suffix; tools/test_config_validator.py and
  v1/test_kv_cache_spec_registry.py -> CPU jobs;
  v1/test_tensor_ipc_queue.py -> Engine (1 GPU);
  tracing/test_loading_tracing.py -> Metrics, Tracing (already installs
  the OTel deps it needs).
- v1/cudagraph/test_cudagraph_manager.py (added unwired by vllm-project#48843 while
  this change was in flight; cpu_test-marked, passes CPU-only) -> the
  V1 CPU job.

NOT wired because they are broken on main (never ran, APIs drifted):
tests/v1/streaming_input/ (10 of 14 fail: stale RequestState/mock
usage) and tests/v1/cudagraph/test_encoder_cudagraph.py (budget
tracking test fails). Their owners should fix and wire them.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Nick Hill <nickhill123@gmail.com>
@njhill
njhill force-pushed the ci-wire-untethered-tests branch from 78acf62 to 6978d49 Compare July 21, 2026 15:17
- Spec Decode Ngram + Suffix: spec_decode/test_custom_proposer.py is a
  __main__-style integration script (its docstring says to run it with
  python directly, and it registers its proposer class as
  "__main__.DummyDraftProposer"), not a pytest module - pytest collects
  0 items and exits 5. Run it with python3 instead, like
  standalone_tests/lazy_imports.py.
- Kernels Root Misc Test: also --ignore test_ll_bf16_gemm.py,
  test_bf16x3_router_gemm_cutedsl.py and test_kda.py, which already run
  in dedicated jobs (Kernels (B200) / KDA); collecting them again in
  the catch-all double-runs them, and test_ll_bf16_gemm's
  test_invalid_device_cpu fails under the shared-process run.
- CPU Tests: drop tools/test_config_validator.py - it imports
  tools.pre_commit.validate_config, and CI test images only copy
  individual tools/ files (install_protoc.sh, build_rust.py), never
  tools/pre_commit/, so the import can only work in a full source
  checkout. Left a note in place; it would fit a pre-commit-style
  workflow instead.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Nick Hill <nickhill123@gmail.com>
Comment thread .buildkite/test_areas/kernels.yaml Outdated
Comment on lines +100 to +117
--ignore=kernels/test_cache_kernels.py
--ignore=kernels/test_flex_attention.py
--ignore=kernels/test_fused_inv_rope_fp8_quant.py
--ignore=kernels/test_fused_minimax_m3_qknorm_rope_kv_insert.py
--ignore=kernels/test_fused_recurrent_packed_decode.py
--ignore=kernels/test_fused_sigmoid_gating_delta_rule.py
--ignore=kernels/test_mhc_kernels.py
--ignore=kernels/test_shuffle_rows.py
# BROKEN on main as of this job's addition (B200):
# test_cache_kernels.py (1: test_gather_cache_oob)
# test_flex_attention.py (3: custom_mask_full_cudagraphs, block_mask
# direct-vs-slow, block_sparsity_hint)
# test_fused_inv_rope_fp8_quant.py (5: test_einsum_end_to_end)
# test_fused_minimax_m3_qknorm_rope_kv_insert.py (14: all fp8 variants)
# test_fused_recurrent_packed_decode.py (4: all)
# test_fused_sigmoid_gating_delta_rule.py (4)
# test_mhc_kernels.py (3: test_hc_prenorm_gemm_tilelang)
# test_shuffle_rows.py (1: test_shuffle_rows_edge_cases)

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I will be opening a separate PR to fix/remove these exclusions.

@github-project-automation github-project-automation Bot moved this to Ready in NVIDIA Jul 21, 2026
@mergify

mergify Bot commented Jul 21, 2026

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This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @njhill.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

@mergify mergify Bot added the needs-rebase label Jul 21, 2026
Signed-off-by: Nick Hill <nickhill123@gmail.com>

# Conflicts:
#	.buildkite/test_areas/misc.yaml
@njhill
njhill enabled auto-merge (squash) July 22, 2026 07:52
njhill added a commit to njhill/vllm that referenced this pull request Jul 22, 2026
Test-only fixes for files excluded as broken when wiring the
kernels-root catch-all CI job (vllm-project#49340). Runtime bugs found in the same
audit are fixed separately (gather_and_maybe_dequant_cache OOB guard,
shuffle_rows misaligned-width fallback, mHC block-M reduction).

- test_fused_recurrent_packed_decode / test_fused_sigmoid_gating_delta_rule:
  since vllm-project#39064 the FLA kernels reserve state index 0 as NULL_BLOCK_ID
  (CUDA graph padding; block 0 is the block pool's null block), and
  skip requests with index <= 0. The tests still used 0 as a valid
  slot, leaving those output rows uninitialized (NaN in fp16; fp32 only
  passed via luckily-zeroed allocations). Use 1-based indices and
  compare only valid rows.
- test_fused_minimax_m3_qknorm_rope_kv_insert: the CUDA fused kernel
  quantizes K to e4m3 from its fp32 intermediate (single rounding)
  while the reshape_and_cache_flash reference double-rounds via bf16;
  bitwise equality only ever held on ROCm, which materializes the model
  dtype first. Allow 1 ulp.
- test_fused_inv_rope_fp8_quant: import ceil_div/calc_diff locally
  instead of from the top-level deep_gemm package (deep_gemm ships
  vendored as vllm.third_party.deep_gemm and is not importable
  directly), and skip the einsum test when DeepGEMM is unsupported.
- test_flex_attention: use an ungated model for the block-mask builder
  test (config metadata only; the meta-llama repo requires auth).
- new tests/kernels/conftest.py: several kernels-root files leak
  torch.set_default_device("cuda") into later test files in the same
  pytest run — this is what actually broke the flex tests in the
  combined job. Restore the default device after every test.

Validated on B200: full kernels-root collection with all previously
broken files included passes 2692/2692 (19 skipped).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Signed-off-by: Nick Hill <nickhill123@gmail.com>
@mergify mergify Bot removed the needs-rebase label Jul 22, 2026
njhill added 4 commits July 22, 2026 11:42
Signed-off-by: Nick Hill <nickhill123@gmail.com>
…m-project#49427

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Signed-off-by: Nick Hill <nickhill123@gmail.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Signed-off-by: Nick Hill <nickhill123@gmail.com>
This was referenced Aug 30, 2026
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