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Uses grid striding in fill_with #790

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May 19, 2023
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29 changes: 7 additions & 22 deletions src/tensor_ops/utilities/cuda_utils.cuh
Original file line number Diff line number Diff line change
Expand Up @@ -94,30 +94,15 @@ __device__ void chunk_sum(
}
}

extern "C" __global__ void fill_with_f16(__half *buf, __half value, const size_t numel) {
unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
if (i >= numel) {
return;
}
buf[i] = value;
}

extern "C" __global__ void fill_with_f32(float *buf, float value, const size_t numel) {
unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
if (i >= numel) {
return;
}
buf[i] = value;
}

extern "C" __global__ void fill_with_f64(double *buf, double value, const size_t numel) {
unsigned int i = blockIdx.x * blockDim.x + threadIdx.x;
if (i >= numel) {
return;
template<typename T>
__device__ void fill_with(T *buf, T value, const size_t numel) {
for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) {
buf[i] = value;
}
buf[i] = value;
}

extern "C" __global__ void fill_with_f16(__half *buf, __half value, const size_t numel) { fill_with(buf, value, numel); }
extern "C" __global__ void fill_with_f32(float *buf, float value, const size_t numel) { fill_with(buf, value, numel); }
extern "C" __global__ void fill_with_f64(double *buf, double value, const size_t numel) { fill_with(buf, value, numel); }

__device__ __forceinline__ bool isnang(float a) { return isnan(a); }
__device__ __forceinline__ bool isnang(double a) { return isnan(a); }
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