Add AMD GPU accelerator detection to archdetect (+ CI tests) - #273
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hmeiland wants to merge 4 commits into
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Add AMD GPU accelerator detection to archdetect (+ CI tests)#273hmeiland wants to merge 4 commits into
hmeiland wants to merge 4 commits into
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Note: this PR was prepared with the assistance of AI coding tools (opencode and GitHub Copilot). |
…ests - Add $EESSI_KFD_NODES_OVERRIDE hook so amd_accelpath() can be tested against fixture KFD topology trees (defaults to the real sysfs path). - Add tests/archdetect/amd-kfd fixtures for gfx90a (MI250X), gfx942 (MI300X), gfx1101 (Radeon PRO V710), plus no-device and no-topology cases. - Add tests_archdetect_amd_gpu.yml workflow mirroring the NVIDIA GPU tests.
The refactor into nvidia_accelpath()/amd_accelpath() only checked for a 0 return code and fell through on any non-zero code, turning a present-but-failing nvidia-smi (return 3) into a generic 'no accelerator' exit 2. Restore the original semantics: a present-but-failing vendor tool is a hard error (exit 3), while 'tool not found' (2) falls through to the next vendor. Fixes the no_devices NVIDIA GPU test.
EESSI 2023.06 has no AMD accelerator stack, so the init script maps each detected gfx target to its nearest supported base target (gfx90a->gfx900, gfx942->gfx940, gfx1101->gfx1100) before reporting 'No matching path found'. Match that line by prefix instead of pinning the exact detected gfx string.
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Completes the WIP AMD GPU accelerator detection from #205 and makes it testable in CI.
Builds on top of #205 (which refactors
accelpath()intonvidia_accelpath()+amd_accelpath(), detects AMD GPUs via the KFD sysfs topology with anamd-smifallback, and widens the override regex to acceptaccel/amd/gfx<arch>).What this PR adds on top of #205
amd_accelpath()can now be overridden via$EESSI_KFD_NODES_OVERRIDE(defaults to the real/sys/devices/virtual/kfd/kfd/topology/nodes). Without this the AMD detection path cannot be exercised in CI (it needs real AMD hardware + root).tests/archdetect/amd-kfd/KFD topology trees + expected outputs for:1xmi250x→accel/amd/gfx90a1xmi300x→accel/amd/gfx9421xv710→accel/amd/gfx1101(AMD Radeon PRO V710)no_devices(KFD present, CPU node only) → no acceleratornone(no KFD topology) → no acceleratortests_archdetect_amd_gpu.yml, mirroring the existing NVIDIA GPU accelerator-detection workflow.Testing
Verified locally:
gfx_target_version→gfx<arch>decoding:90010→gfx90a,90402→gfx942,110001→gfx1101,100300→gfx1030.accelpathagainst every fixture (via$EESSI_KFD_NODES_OVERRIDE): all expected outputs; CPU-only / absent topology → exit 2.EESSI_ACCELERATOR_TARGET_OVERRIDE=accel/amd/gfx90a) echoed back verbatim.bash -nclean; existingcpupathfixtures still pass (no regression).The
. init/bashCVMFS portion of the workflow runs only on the runner (no AMD stack exists in EESSI 2023.06 yet, so a detected AMD GPU is expected to find no matching module path — modelled on the existing NVIDIAcc01case).Notes
amd-smifallback (Method 2, from Add AMD GPU support to accelpath (WIP) #205) is not covered by fixtures — realamd-smioutput format is uncertain; the KFD path is primary and tested.