Gopesh Bhardwaj
83 lignes
3.2 KiB
Markdown
83 lignes
3.2 KiB
Markdown
# ROCprofiler-SDK: Application Profiling, Tracing, and Performance Analysis
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***
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Note: rocprofiler-sdk is currently `not` supported as part of the public ROCm software stack and is only distributed as a beta
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release to customers.
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***
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## Overview
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ROCProfiler-SDK is AMD’s new and improved tooling infrastructure, providing a hardware-specific low-level performance analysis interface for profiling and tracing GPU compute applications. To see what's changed [Click Here](source/docs/about.md)
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## GPU Metrics
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- GPU hardware counters
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- HIP API tracing
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- HIP kernel tracing
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- HSA API tracing
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- HSA operation tracing
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- Marker(ROCtx) tracing
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- PC Sampling (Beta)
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## Tool Support
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rocprofv3 is the command line tool built using the rocprofiler-sdk library and shipped with the ROCm stack. To see details on
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the command line options of rocprofv3, please see rocprofv3 user guide
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[Click Here](source/docs/rocprofv3.md)
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## Documentation
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We make use of doxygen to generate API documentation automatically. The generated document can be found in the following path:
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``` bash
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<ROCM_PATH>/share/html/rocprofiler-sdk
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```
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ROCM_PATH by default is /opt/rocm
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It can be set by the user in different locations if needed.
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## Build and Installation
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```bash
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git clone https://git@github.com:ROCm/rocprofiler-sdk.git rocprofiler-sdk-source
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cmake \
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-B rocprofiler-sdk-build \
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-D ROCPROFILER_BUILD_TESTS=ON \
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-D ROCPROFILER_BUILD_SAMPLES=ON \
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-D ROCPROFILER_BUILD_DOCS=ON \
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-D CMAKE_INSTALL_PREFIX=/opt/rocm \
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rocprofiler-sdk-source
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cmake --build rocprofiler-sdk-build --target all --parallel 8
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```
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To install ROCprofiler, run:
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```bash
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cmake --build rocprofiler-sdk-build --target install
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```
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Please see the detailed section on build and installation here: [Click Here](/source/docs/installation.md)
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## Support
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Please report in the Github Issues.
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## Limitations
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- Individual XCC mode is not supported.
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- By default, PC sampling API is disabled. To use PC sampling. Setting the `ROCPROFILER_PC_SAMPLING_BETA_ENABLED` environment variable grants access to the PC Sampling experimental beta feature. This feature is still under development and may not be completely stable.
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- **Risk Acknowledgment**: By activating this environment variable, you acknowledge and accept the following potential risks:
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- **Hardware Freeze**: This beta feature could cause your hardware to freeze unexpectedly.
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- **Need for Cold Restart**: In the event of a hardware freeze, you may need to perform a cold restart (turning the hardware off and on) to restore normal operations.
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Please use this beta feature cautiously. It may affect your system's stability and performance. Proceed at your own risk.
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- At this point, We do not recommend stress-testing the beta implementation.
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- Correlation IDs provided by the PC sampling service are verified only for HIP API calls.
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- Timestamps in PC sampling records might not be 100% accurate.
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- Using PC sampling on multi-threaded applications might fail with `HSA_STATUS_ERROR_EXCEPTION`.Furthermore, if three or more threads launch operations to the same agent, and if PC sampling is enabled, the `HSA_STATUS_ERROR_EXCEPTION` might appear.
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