39b5f414a3
There is an upstream problem [1] with AMD's LLVM 22 fork and rocWMMA 2.2.0 causing compilation issues on devices without native fp16 support (CDNA devices). The specialized types aren't resolved properly: ``` /opt/rocm/include/rocwmma/internal/mfma_impl.hpp:2549:37: error: ambiguous partial specializations of 'amdgcn_mfma<__half, __half, __half, 16, 16, 16>' 2549 | using ARegsT = typename Impl::ARegsT; ``` Add a workaround to explicitly declare the types and cast when compiling with HIP and ROCWMMA_FATTN [2]. When this is actually fixed upstream some guards can be used to detect and wrap the version that has the fix to only apply when necessary. Link: https://github.com/ROCm/rocm-libraries/issues/4398 [1] Link: https://github.com/ggml-org/llama.cpp/issues/19269 [2] Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> |
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