Issues

• Straggler analysis silently finding zero communication kernels on traces from modern NCCL builds

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#360 · Filter by author benettia opened on Jul 16, 2026

• The _TraceFileParserWrapper hangs during handling large trace files

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#332 · Filter by author lin-ht opened on Apr 7, 2026

• Negative Mean Kernel Duration

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#317 · Filter by author Kian-bhd opened on Feb 4, 2026
  2

• Question about the visualization tool used for the critical path in the screenshot

  documentationneeds triage
  facebookresearch/HolisticTraceAnalysis#310 · Filter by author harry-zsw opened on Dec 2, 2025

• Support the Equivalent of profiler.key_averages(group_by_stack_n=n)

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#294 · Filter by author james47 opened on Sep 3, 2025
  1

• cudaGraphLaunch-launched kernels sometimes missing from critical path analysis

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#290 · Filter by author LSaga opened on Jul 30, 2025

• Improve clarity of critical path visualization by filtering non-informative nodes

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#277 · Filter by author LSaga opened on Jul 23, 2025

• examples section

  documentationneeds triage
  facebookresearch/HolisticTraceAnalysis#267 · Filter by author ggankhuy opened on Jul 10, 2025

• Missing the corelation between forward and backward processes

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#263 · Filter by author yongpan0709 opened on Jul 2, 2025

• get_frequent_cuda_kernel_sequences fails with like "ValueError: Unexpected case: [2123.0, -1.0, 1.0, 357.0] [2122.0, 0.0, 1.0, 357.0]"

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#254 · Filter by author zeerd opened on Jun 4, 2025
  1

• Improve the RAM usage for large files

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#250 · Filter by author ZhiliangWu opened on May 26, 2025

• Got NaN for communication time, looking for ncclKernel in the trace

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#247 · Filter by author yuli821 opened on May 8, 2025
  1

• Inaccurate non-compute time processing On A800/A100

  bug
  facebookresearch/HolisticTraceAnalysis#241 · Filter by author Dingjifeng opened on Apr 11, 2025
  1

  

• [failed][ProfilerStep not found in the trace. The analysis result may not be accurate] Using HTA but failed

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#238 · Filter by author zejun-chen opened on Apr 2, 2025
  1

  

• Is HTA working??

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#233 · Filter by author dttsou opened on Mar 13, 2025
  2

• Apply Customized Parser Config for Individual Traces

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#231 · Filter by author fengxizhou opened on Mar 9, 2025
  

• Jupyterlab doesn't display some of the plots

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#227 · Filter by author yassineAlouini opened on Mar 1, 2025
  4

• Generate memory timelines from trace files

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#222 · Filter by author payoto opened on Feb 21, 2025
  3

  

• About the bug of function is_compute_kernel in HolisticTraceAnalysis/hta/utils /utils.py

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#220 · Filter by author zwj0117 opened on Feb 20, 2025
  3

• Adding compatibility to AMD GPUs

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#219 · Filter by author spandoescode opened on Feb 19, 2025

• Extracting the results/summary/conclusion/charts from HTA

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#212 · Filter by author dipshirajput opened on Jan 28, 2025

• Is it possible to categorize the kernels befween forward and backward passes

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#206 · Filter by author mpashkovskiy opened on Nov 29, 2024
  1

• Add utility to analyze the memory usage of internal trace representation

  feature requestneeds triage
  facebookresearch/HolisticTraceAnalysis#191 · Filter by author fengxizhou opened on Oct 22, 2024
  

• Self-Dependencies in External Event IDs in SYNC_DEPENDENCY

  help wantedneeds triagequestion
  facebookresearch/HolisticTraceAnalysis#156 · Filter by author TaekyungHeo opened on Jun 25, 2024

• Analyzer reads the log files correctly but doesn't show data

  bugneeds triage
  facebookresearch/HolisticTraceAnalysis#148 · Filter by author oabuhamdan opened on Jun 11, 2024