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39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
// WARNING: THIS IS ONLY VALID ASSUMING THAT inp IS CONTIGUOUS!
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// TODO: proper error reporting when ids are larger than v_size.
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#include "cuda_utils.cuh"
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#include<stdint.h>
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#define EMB_OP(TYPENAME, FN_NAME) \
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extern "C" __global__ void FN_NAME( \
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const size_t numel, \
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const size_t num_dims, \
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const size_t *info, \
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const uint32_t *ids, \
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const TYPENAME *inp, \
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TYPENAME *out, \
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const size_t h_size, \
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const size_t v_size \
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) { \
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const size_t *dims = info; \
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const size_t *strides = info + num_dims; \
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if (is_contiguous(num_dims, dims, strides)) { \
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for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) { \
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memcpy(&out[i * h_size], &inp[ids[i] * h_size], h_size * sizeof(TYPENAME)); \
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} \
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} \
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else { \
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for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) { \
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unsigned strided_i = get_strided_index(i, num_dims, dims, strides); \
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memcpy(&out[i * h_size], &inp[ids[strided_i] * h_size], h_size * sizeof(TYPENAME)); \
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} \
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} \
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} \
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#if __CUDA_ARCH__ >= 530
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EMB_OP(__half, emb_f16)
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#endif
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EMB_OP(float, emb_f32)
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EMB_OP(double, emb_f64)
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EMB_OP(uint32_t, emb_u32)
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