Jonathan R. Madsen
9499e2f521
* Delete core critical-trace files * Update docs and README * Update workflows * Update testing * Update cmake * Remove critical trace usage in source code * Update source/docs/critical_trace.md - fix spelling * Formatting * Update bin/omnitrace-avail/avail.cpp - statically allocate shared pointers for timemory manager and hash id/aliases to prevent use-after-free errors
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Features
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:glob:
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Overview
OmniTrace is designed to be highly extensible. Internally, it leverages the timemory performance analysis toolkit to manage extensions, resources, data, etc.
Data Collection Modes
- Dynamic instrumentation
- Runtime instrumentation
- Instrument executable and shared libraries at runtime
- Binary rewriting
- Generate a new executable and/or library with instrumentation built-in
- Runtime instrumentation
- Statistical sampling
- Periodic software interrupts per-thread
- Process-level sampling
- Background thread records process-, system- and device-level metrics while the application executes
- Causal profiling
- Quantifies the potential impact of optimizations in parallel codes
Data Analysis
- High-level summary profiles with mean/min/max/stddev statistics
- Low overhead, memory efficient
- Ideal for running at scale
- Comprehensive traces
- Every individual event/measurement
- Application speedup predictions resulting from potential optimizations in functions and lines of code (causal profiling)
Parallelism API Support
- HIP
- HSA
- Pthreads
- MPI
- Kokkos-Tools (KokkosP)
- OpenMP-Tools (OMPT)
GPU Metrics
- GPU hardware counters
- HIP API tracing
- HIP kernel tracing
- HSA API tracing
- HSA operation tracing
- System-level sampling (via rocm-smi)
- Memory usage
- Power usage
- Temperature
- Utilization
CPU Metrics
- CPU hardware counters sampling and profiles
- CPU frequency sampling
- Various timing metrics
- Wall time
- CPU time (process and/or thread)
- CPU utilization (process and/or thread)
- User CPU time
- Kernel CPU time
- Various memory metrics
- High-water mark (sampling and profiles)
- Memory page allocation
- Virtual memory usage
- Network statistics
- I/O metrics
- ... many more
Third-party API support
- TAU
- LIKWID
- Caliper
- CrayPAT
- VTune
- NVTX
- ROCTX