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@mstankov-amd gfx115x does not seem supported in hipBLASLt CC. @jagadish-amd

hipBLASLt support for gfx1150/gfx1151 has been added since ROCm 6.4.1: https://github.com/ROCm/hipBLASLt/blob/release/rocm-rel-6.4/tensilelite/Tensile/Source/lib/include/Tensile/AMDGPU.hpp#L74

you're right @slojosic-amd, it is supported (according to great help from @jagadish-amd who figured it out, it is enabled in 6.4.2). Given this PR also updates the preferred backend, have you benchmarked hipBLASLt versus rocBLAS for perf?

probably needs ROCm 6.4.2 condition,

(reference ROCm/hipBLASLt#2067)

you're right @slojosic-amd, it is supported (according to great help from @jagadish-amd who figured it out, it is enabled in 6.4.2). Given this PR also updates the preferred backend, have you benchmarked hipBLASLt versus rocBLAS for perf?

hipBLASLt kernel yaml files for gfx1150 and gfx1151 are based on Navi33 yaml files which are again only copy of Navi31 yaml files. We have done some internal testing on Navi31 and it depends from model to model but overall conclusion is that we should change prefered BLAS backend for all RDNA 3/3.5 targets to be hipBLASLt. Please check this PR also: https://github.com/pytorch/pytorch/pull/164744/files

probably needs ROCm 6.4.2 condition,

(reference ROCm/hipBLASLt#2067)

Done: 39aaf53

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Detected error during Pytorch building:

HIP VERSION: 7.0.51831-7c9236b16
CMake Warning (dev) at /opt/rocm/lib/cmake/hip/hip-config-amd.cmake:98 (message):
   GPU_TARGETS was not set, and system GPU detection was unsuccsessful.
   
   The amdgpu-arch tool failed:
   Error: 'Failed to get device count'
   Output: ''
   
   As a result, --offload-arch will not be set for subsequent
   compilations, and the default architecture
   (gfx906 for dynamic build / gfx942 for static build) will be used

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