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AMD SMI Wrapper Standalone Test
This directory contains a standalone test for the amdsmi_wrap module in RCCL.
Overview
The amdsmi_wrap module provides a unified wrapper around AMD's system management interfaces:
- AMD SMI Library (
libamdsmi.so) - Modern AMD System Management Interface - Internal ARSMI - Lightweight fallback when AMD SMI is not available
Prerequisites
- ROCm installation (tested with ROCm 6.0+)
- HIP compiler (
hipcc) - AMD GPUs (for runtime testing)
Building
# Default build (uses /opt/rocm)
make
# Custom ROCm path
ROCM_PATH=/path/to/rocm make
# Show build configuration
make info
Running
# Run with internal ARSMI fallback (default)
make run
# Run with AMD SMI library (requires libamdsmi.so)
make run-amdsmi
Test Coverage
The test exercises these amdsmi_wrap functions:
amd_smi_init()/amd_smi_shutdown()amd_smi_getNumDevice()amd_smi_getDevicePciBusIdString()amd_smi_getDeviceIndexByPciBusId()amd_smi_getLinkInfo()amd_smi_getFirmwareVersion()amd_smi_ensureFabricInitialized()amd_smi_isFabricSupported()amd_smi_getFabricBandwidth()amd_smi_getFabricDeviceInfo()amd_smi_canUseScaleUpFabric()
Files
amdsmi_wrap_test.cpp- Main test drivertest_stubs.h- Stub definitions for RCCL dependenciestest_utils.cc- Stub implementationsMakefile- Build configuration
Environment Variables
| Variable | Description |
|---|---|
RCCL_USE_AMD_SMI_LIB |
Set to 1 to use AMD SMI library |
ROCM_PATH |
Path to ROCm (default: /opt/rocm) |