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[ROCm] fixes ambiguous calls to shfl* where there is no explicit type conversion from c10::Half to __half #411

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Jan 23, 2024
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[ROCm] fixes ambiguous calls to shfl* where there is no explicit type conversion from c10::Half to __half #411

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10 changes: 10 additions & 0 deletions csrc/cuda/utils.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,16 @@ __device__ __inline__ at::Half __shfl_down_sync(const unsigned mask,
return __shfl_down_sync(mask, var.operator __half(), delta);
}

__device__ __inline__ at::Half __shfl_up(const at::Half var,
const unsigned int delta) {
return __shfl_up(var.operator __half(), delta);
}

__device__ __inline__ at::Half __shfl_down(const at::Half var,
const unsigned int delta) {
return __shfl_down(var.operator __half(), delta);
}

#ifdef USE_ROCM
__device__ __inline__ at::Half __ldg(const at::Half* ptr) {
return __ldg(reinterpret_cast<const __half*>(ptr));
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