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pytorch - ✅(Solved) Fix DISABLED test_rms_norm_bwd_bfloat16_split_reductions_False_shape0_max_autotune_False_initial_xblock_1_add_1dim_False (__main__.MixOrderReductionTest) [1 pull requests, 3 comments, 2 participants]

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pytorch/pytorch#176970•Fetched 2026-04-08 00:23:30
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pytorch-bot[bot]pytorch-bot[bot]
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eellisoneellisonpytorch-bot[bot]pytorch-bot[bot]
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Root Cause

This test was disabled because it is failing in CI. See recent examples and the most recent trunk workflow logs.

Fix Action

Fixed

PR fix notes

PR #177674: [inductor] fix oom of mix-order-red in ci

Description (problem / solution / changelog)

Stack from ghstack (oldest at bottom):

  • -> #177674

Fix https://github.com/pytorch/pytorch/issues/176970

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @ipiszy @kadeng @muchulee8 @amjames @chauhang @aakhundov @coconutruben @jataylo

Changed files

  • test/inductor/test_mix_order_reduction.py (modified, +2/-0)
RAW_BUFFERClick to expand / collapse

Platforms: linux

This test was disabled because it is failing in CI. See recent examples and the most recent trunk workflow logs.

Over the past 6 hours, it has been determined flaky in 16 workflow(s) with 32 failures and 16 successes.

Debugging instructions (after clicking on the recent samples link): DO NOT ASSUME THINGS ARE OKAY IF THE CI IS GREEN. We now shield flaky tests from developers so CI will thus be green but it will be harder to parse the logs. To find relevant log snippets:

  1. Click on the workflow logs linked above
  2. Click on the Test step of the job so that it is expanded. Otherwise, the grepping will not work.
  3. Grep for test_rms_norm_bwd_bfloat16_split_reductions_False_shape0_max_autotune_False_initial_xblock_1_add_1dim_False
  4. There should be several instances run (as flaky tests are rerun in CI) from which you can study the logs.

Test file path: inductor/test_mix_order_reduction.py

For all disabled tests (by GitHub issue), see https://hud.pytorch.org/disabled.

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @ipiszy @kadeng @muchulee8 @amjames @chauhang @aakhundov @coconutruben @jataylo

extent analysis

Fix Plan

Fix: Implement retry mechanism for flaky test

Step 1: Identify flaky test and its failure pattern

  • Analyze the recent workflow logs and identify the failure pattern of the flaky test test_rms_norm_bwd_bfloat16_split_reductions_False_shape0_max_autotune_False_initial_xblock_1_add_1dim_False.

Step 2: Implement retry mechanism

  • Modify the test file inductor/test_mix_order_reduction.py to implement a retry mechanism using a library like tenacity or retrying.
  • Use a decorator to retry the test function with a specified number of attempts and a delay between attempts.

Example Code:

import tenacity

@tenacity.retry(wait=tenacity.wait_exponential(multiplier=1, min=4, max=10))
def test_rms_norm_bwd_bfloat16_split_reductions_False_shape0_max_autotune_False_initial_xblock_1_add_1dim_False():
    # test implementation
    pass

Step 3: Configure retry settings

  • Configure the retry settings to suit the specific test and failure pattern.
  • Adjust the number of attempts, delay between attempts, and other settings as needed.

Step 4: Verify the fix

  • Run the test again in CI and verify that it passes.
  • Monitor the test for a reasonable amount of time to ensure that the retry mechanism is effective in preventing flaky failures.

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#api#ssr#installation#tensor shape#autograd error#API versioning#request timeout

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