Welton, Benjamin
aa88dd44c7
Adds iteration based multiplexing to counter collection. Counter groups can now be specified. These counter groups are collected on a device individually until a specified interval period is reached. When the interval is reached, the next counter group is set to be collected on subsequent kernel executions. Supplies two new argument types that can be included in YAML/JSON inputs: pmc_groups: an array of arrays containing the counter groups to run (i.e. [ ["SQ_WAVES", "GRBM_COUNT"], ["GRBM_GUI_ACTIVE"]) pmc_group_interval: the number of kernel invocations on a GPU of a group before rotating to the next group Note: originally there was a random_seed_generator proposed in the linked ticket, that was not implemented since there are very few instances where you would want the selection of the groups to be randomly generated (and if you do, you can randomly generate the pattern and place it as a large list of groups in pmc_group). All existing counter functionality should be preserved (selection of counters on specific devices only, profiling of only specific kernels, etc). --------- Co-authored-by: Benjamin Welton <bewelton@amd.com>
ROCProfiler Tool Library
This is a tool that gets registered with the rocprofiler to obtain its services. The tool is built as a shared library and is named as rocprofiler-sdk-tool. The library can be preloaded using LD_PRELOAD to facilitate its registration as a tool with the rocprofiler.
The user through rocprofv3 script can select the options to obtain tracing and counter collection services from the rocprofiler.
Currently, this tool supports kernel trace and the hsa-api trace. The tool uses the following environment variables to read the user choices.
ROCPROF_KERNEL_TRACE=1to obtain kernel traceROCPROF_HSA_API_TRACE=1to obtain hsa api trace
The user can also specify the output filename and output file path to which the traces are written to.
ROCPROF_OUTPUT_PATH=<directory>to set the output directory pathROCPROF_OUTPUT_FILE_NAME=<filename-without-extension>to set the output file name
CHANGELOG
The tool design is similar to its earlier versions. However, not all features that the earlier versions supported are supported by this tool.