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[https://nvbugs/6843484][fix] Keep multi-node aggregated perf-sanity jobs in one NVLink domain; cherry-pick #20000 to release/1.3 - #20292
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…ore each perf-sanity attempt (NVIDIA#20000) Co-authored-by: Claude <noreply@anthropic.com> (cherry picked from commit 553989e) Signed-off-by: chenfeiz0326 <203214996+chenfeiz0326@users.noreply.github.com>
…jobs in one NVLink domain
The aggregated multi-node perf-sanity stages (PerfSanity-Node2-GPU8 and the
gen_only_no_context PerfSanity-GEN1-NODE{2,4,8} stages) were submitted without
--segment, so Slurm could spread one EP16/EP32 job across several NVL72 racks.
Across racks the wide-EP MoE all-to-all cannot map MNNVL memory, so the
communication factory falls back to NcclEP, which then crashes in NCCL GIN
context creation or stalls until the idle-GPU reaper cancels the job.
Request --segment=<nodeCount> for these stages, the same way the
Disagg-PerfSanity and SingleNvlinkDomain stages already do.
Co-authored-by: Claude <noreply@anthropic.com>
Signed-off-by: chenfeiz0326 <203214996+chenfeiz0326@users.noreply.github.com>
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/bot run --disable-fail-fast --stage-list "GB200-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-2,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-1,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-2,GB300-12_GPUs-3_Nodes-PyTorch-Disagg-PerfSanity-CTX1-NODE1-GPU4-GEN1-NODE2-GPU8-Post-Merge-1" |
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PR_Github #77811 [ run ] triggered by Bot. Commit: |
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info
WalkthroughThe changes enable segmentation for aggregated multi-node PerfSanity stages, add output cleanup and heartbeat logging to the disaggregated SLURM launcher, and reduce ChangesPerfSanity execution
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation |
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| Title check |  |
The title clearly identifies the primary NVLink-domain placement fix and the cherry-picked disaggregated perf-sanity fix. It follows the required NVBugs and fix format. |
| Description check | |
The description includes the required Description, Test Coverage, and PR Checklist sections. It explains the root causes, fixes, affected stages, validation results, waivers, and unrelated failures. T… |
| Docstring Coverage | |
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files. |
| Linked Issues check | |
Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | |
Check skipped because no linked issues were found for this pull request. |
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The description includes the required Description, Test Coverage, and PR Checklist sections. It explains the root causes, fixes, affected stages, validation results, waivers, and unrelated failures. The repository checklist is summarized rather than individually addressed, but the description is substantially complete.
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Inline comments:
Review comments at @jenkins/scripts/perf/disaggregated/slurm_launch_draft.sh:
- Around line 12-13: Update the `testOutputDir` coordination and cleanup paths
so concurrent jobs cannot share or delete one another’s files: make the
directory job-private, or include `SLURM_JOB_ID` in the `hostnames-*` and
`benchmark_status.*.txt` paths and restrict cleanup to the current job’s files.
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📒 Files selected for processing: 5
jenkins/L0_Test.groovyjenkins/scripts/perf/disaggregated/slurm_launch_draft.shtests/integration/defs/perf/test_perf_sanity.pytests/scripts/perf-sanity/disaggregated/gb300_deepseek-r1-fp4_128k8k_con256_ctx1_pp4_gen1_dep8_eplb0_mtp1_ccb-NIXL.yamltests/scripts/perf/disaggregated/gb300_deepseek-r1-fp4_128k8k_con256_ctx1_pp4_gen1_dep8_eplb0_mtp1_ccb-NIXL.yaml
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PR_Github #77811 [ run ] completed with state
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Validated the Case: Setup, matching CI
With Those two earlier attempts were setup issues on my side, unrelated to the fix. One stalled in a 23 GB registry pull on 2 of the 4 nodes. The other used the standalone 🤖 Generated with Claude Code |
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@ZhanruiSunCh @Shixiaowei02: requesting your review, since you approved #20000 on main. This is the release/1.3 fix for NVBug 6843484 (P0 for 1.3.0). It has two commits:
Owner coverage: |
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/bot run --disable-fail-fast --stage-list "GB200-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-2,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-1,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-2,GB300-12_GPUs-3_Nodes-PyTorch-Disagg-PerfSanity-CTX1-NODE1-GPU4-GEN1-NODE2-GPU8-Post-Merge-1" |
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PR_Github #78161 [ run ] triggered by Bot. Commit: |
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PR_Github #78161 [ run ] completed with state
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Thanks @chienchunhung! That approval covers the @tburt-nv: adding you for the
The evidence and GPU validation are in the description and the comments above. CI #262 is green up to the multi-GPU stages, which need the approval label. |
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Automatically added "ci: full pre-merge approved" because this PR has satisfied the required GitHub review approvals. Unresolved review conversations and other required checks remain independent merge requirements. |
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/bot run --disable-fail-fast --stage-list "GB200-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1,GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-2,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-1,GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-2,GB300-12_GPUs-3_Nodes-PyTorch-Disagg-PerfSanity-CTX1-NODE1-GPU4-GEN1-NODE2-GPU8-Post-Merge-1" |
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Thanks @chzblych and @chienchunhung! With the label applied, I've re-run the six affected stages: the five |
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PR_Github #78313 [ run ] triggered by Bot. Commit: |
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PR_Github #78313 [ run ] completed with state
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CI #78313 (pipeline #282). Every job was submitted with
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/bot run --disable-fail-fast |
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PR_Github #78367 [ run ] triggered by Bot. Commit: |
…gment-release-1.3 Signed-off-by: chenfeiz0326 <203214996+chenfeiz0326@users.noreply.github.com>
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Full pre-merge pipeline #290: none of the failures come from this PR's files.
Pre-merge CI tests the PR head as-is, so I merged the current |
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/bot run --disable-fail-fast |
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PR_Github #78438 [ run ] triggered by Bot. Commit: |
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PR_Github #78367 [ run ] completed with state |
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PR_Github #78438 [ run ] completed with state
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Full pre-merge pipeline #297 on
All other x86 single-GPU stages passed. Re-running on the same commit; CI reuses the stages that already passed. |
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/bot run --disable-fail-fast |
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PR_Github #78481 [ run ] triggered by Bot. Commit: |
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PR_Github #78481 [ run ] completed with state |
Description
Fixes the perf-sanity failures from NVBugs 6843483, 6843484 and 6843490 that still fail in the latest
release/1.3post-merge (#29).These bugs were filed against
mainpost-merge #2987, #2989 and #2990. Three groups of failures are already fixed and are not part of this PR:gen_only_no_contextQwen3-235B cases (Benchmark output contains N failed requests, i.e.No 0 servers available). Fixed by [https://nvbugs/6843918][fix] Fix gen_only perf-sanity metric bucket, gonc gen-only env, and unwaive fixed cases #19700 / [https://nvbugs/6843918][fix] Cherry-pick #19700, #19697, #19692 to release/1.3: perf-sanity gen_only metric/env fixes, orphaned perf worker cleanup, DSv4 FP8 startup timeout #19965. They pass onrelease/1.3Can we install TensorRT-LLM without docker? #22–Tactic running out of memory during Code Llama 34B build #29 andmainchore: Deprecate model_api examples #2999–fix: creating output of dataset generator in current directory #3018.gb300_deepseek-v4-pro-dspark_agentx_con1156). It is not fixed: it is waived under nvbugs/6877254, which is tracked separately. Onrelease/1.3the stage is green only because CI mergesmain's waive list into the branch's, and the case is skipped.gen_onlytimeout, which passes onrelease/1.3Speed compare with vllm? #24–Tactic running out of memory during Code Llama 34B build #29.Two root causes remain on
release/1.3, one per commit.1. Multi-node aggregated perf-sanity stages are not kept inside one NVLink domain
Affected stages:
GB200-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-{1,2}GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-{1,2}The cases are
gen_only_no_contextDeepSeek-R1 con4096 dep16, DeepSeek-V4-Pro con666 dep16 / con180 dep32, and GLM-5 con512 dep32. In the bugs they appear asncclGinGdakiCreateContext ... failed: 2,no new log output for 7201s, orCANCELLED by 146504(the idle-GPU reaper).What happens.
runLLMTestlistWithSbatchadds--segment=<nodeCount>only forDisagg-PerfSanityandSingleNvlinkDomainstages.aggMultiNodeMode) get no segment, so Slurm can spread one EP16/EP32 job over several NVL72 racks. On oci-hsg, oci-jhb and oci-aga,topology/blockuses 18-node blocks, one per rack.NVLinkOneSidedandNVLinkTwoSidedfail withCUDA_ERROR_INVALID_HANDLE(MNNVL memory cannot be mapped). The MoE communication factory then falls back toNcclEP.NcclEPthe case crashes in NCCL GIN context creation (ncclGinGdakiCreateContext ... failed: 2,nccl_ep.cc:2130) or inNCCL-EP NVFP4 dispatch requires uint8 tokens. Otherwise it stalls with idle GPUs until the reaper or the 2 h no-output watchdog cancels it.Evidence: Slurm nodelist vs. outcome for these 5 stages. Nodelists come from the stage logs of
release/1.3#20–#29 andmain#3009–#3017. Builds whose logs have expired or that hit the #3009 DNS outage are excluded.release/1.3Can we install TensorRT-LLM without docker? #22/ERROR: This container was built for NVIDIA Driver Release 535.86 or later, compatibility mode is UNAVAILABLE. #23/Speed compare with vllm? #24/Tactic running out of memory during Code Llama 34B build #29, each time on one rack. It failed on Main doc fix #20/Will this repo support A10 in the future? #26/a error when build tensorrt_llm #28, each time on two.release/1.3Tactic running out of memory during Code Llama 34B build #29,nvl72175-T[06,08-10]):NVLinkOneSidedon all ranks, novia NETlinks.mainfix: segfault in cudaDriverWrapper #3017,nvl72138-T[12,15],nvl72057-T[08,11]):NVLinkOneSided not available: CUDA_ERROR_INVALID_HANDLE, thenNcclEP.Disagg-PerfSanitystages, which already pass--segment, landed in one rack in 152/152 runs, up to 14 nodes.Fix.
--segment=<nodeCount>is now also requested inaggMultiNodeMode, the same as forDisagg-PerfSanityandSingleNvlinkDomain. This one-line change injenkins/L0_Test.groovyaffects only multi-node stages whose name containsPerfSanity; every such stage is ≤ 8 nodes, well under the 18-node block size.2. Cherry-pick #20000: stale disagg rendezvous files and the CI no-output watchdog
Affected stage:
GB300-12_GPUs-3_Nodes-PyTorch-Disagg-PerfSanity-CTX1-NODE1-GPU4-GEN1-NODE2-GPU8-Post-Merge-1, casedisagg_upload-e2e-gb300_deepseek-r1-fp4_128k8k_con256_ctx1_pp4_gen1_dep8_eplb0_mtp1_ccb-NIXL.release/1.3it has failed in every build in the reports I fetched (Speed compare with vllm? #24/Will this repo support A10 in the future? #26/a error when build tensorrt_llm #28/Tactic running out of memory during Code Llama 34B build #29) withno new log output for 7201s ... Cancelling it. In Tactic running out of memory during Code Llama 34B build #29, the precheck passed and the benchmark started at 13:04. The job log then stayed at 158,646 bytes until the watchdog cancelled it at 15:09.main:multi_round3 → 2 for this case;hostnames-*/benchmark_status.*.txtbefore each attempt.mainhas uploaded this case in feat: add conditional disaggregation test #3012, feat : reduce trt engine build time in testing #3014, chore: Refactor imports inside tensorrt_llm._torch. #3015 and chore: Improve trtllm-serve import pattern #3016.release/1.3has never uploaded it.slurm_launch_draft.shandtest_perf_sanity.pyare byte-identical tomainat [https://nvbugs/6718911][fix] Fix stale disagg rendezvous after requeue and CI watchdog cancelling long perf-sanity runs #20000, and both case YAMLs are identical tomain.Test Coverage
GB200-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-1GB300-16_GPUs-4_Nodes-PyTorch-PerfSanity-GEN1-NODE4-GPU16-Post-Merge-2GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-1GB300-32_GPUs-8_Nodes-PyTorch-PerfSanity-GEN1-NODE8-GPU32-Post-Merge-2GB300-12_GPUs-3_Nodes-PyTorch-Disagg-PerfSanity-CTX1-NODE1-GPU4-GEN1-NODE2-GPU8-Post-Merge-1aggr_upload-gen_only_no_context-gb300_deepseek-r1-fp4_8k1k_con4096_ctx1_dep4_gen1_dep16_eplb0_mtp1_ccb-NIXLstays waived under nvbugs/6912139 in this PR. It can be unwaived once these stages are green.pre-commitpasses on the changed files.PR Checklist
🤖 Generated with Claude Code
Dev Engineer Review
jenkins/L0_Test.groovynow enables--segment=${nodeCount}for aggregated multi-node PerfSanity stages, in addition to disaggregated and SingleNvlinkDomain stages. The change targets keeping these Slurm jobs within one NVLink domain.slurm_launch_draft.shremoves stale hostname and benchmark-status files before a run. It prints a benchmark-log heartbeat every 600 seconds and stops the heartbeat after the benchmark completes or fails.multi_roundfrom 3 to 2. The integration-test changes document cleanup and retry assumptions without changing test behavior.pre-commitpasses, but provides no results from rerunning the requested stages. Review finding counts are unavailable.QA Engineer Review
tests/integration/defs/perf/test_perf_sanity.pyand two GB300 DeepSeek-R1 benchmark configuration files. The test-selector entries for the affected case are present in bothtests/integration/test_lists/test-db/andtests/integration/test_lists/qa/.Per-File QA Perspective
jenkins/L0_Test.groovy: Verify that aggregated multi-node PerfSanity stages receive--segment=${nodeCount}and that the option is limited to the intended modes.jenkins/scripts/perf/disaggregated/slurm_launch_draft.sh: Verify stale-file cleanup, heartbeat output during long runs, heartbeat shutdown, and failure cleanup.tests/integration/defs/perf/test_perf_sanity.py: The comments describe hostname cleanup and retry assumptions. The related test selector appears in the QA and test-db lists.tests/scripts/perf-sanity/disaggregated/gb300_deepseek-r1-fp4_128k8k_con256_ctx1_pp4_gen1_dep8_eplb0_mtp1_ccb-NIXL.yaml: Verify that settingmulti_roundto 2 retains the intended perf-sanity coverage.tests/scripts/perf/disaggregated/gb300_deepseek-r1-fp4_128k8k_con256_ctx1_pp4_gen1_dep8_eplb0_mtp1_ccb-NIXL.yaml: Verify that settingmulti_roundto 2 retains the intended benchmark coverage.