nunatak

Zero-instrumentation profiler for high-performance computing. nunatak orchestrates existing collectors (perf, nsys, rocprofv3, mpiP, xctrace…), places compute units on a roofline, diagnoses CPU, GPU, memory and network bottlenecks, and has the results explained by a language model.

nunatak run -- ./my_binary

• Getting started
  • Hotspot names
  • Source in the Run
  • Checking the environment
  • Exit codes
  • Configuration
  • The Run directory
  • Calibrating the Machine
  • Counter groups
  • What the analysis says
  • The summary at the end of the run
  • The HTML report
• API
  • Launch
  • Measured pivot
  • Collection
  • Recording corpus
  • Ingestion
  • Attribution
  • Machine
  • Calibration
  • Analysis
  • Summary
  • Report
  • Configuration