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/*
Copyright (c) Microsoft Corporation.
Licensed under the MIT License.
*/
#include <torch/extension.h>
#include <vector>
/*
CPP Binding for CUDA OP
*/
// CUDA forward declarations
torch::Tensor ngram_repeat_block_cuda_forward(torch::Tensor tokens,
torch::Tensor lprobs, int bsz,
int step, int beam_size,
int no_repeat_ngram_size);
#define CHECK_CUDA(x) \
TORCH_CHECK(x.type().is_cuda(), #x " must be a CUDA tensor")
#define CHECK_CONTIGUOUS(x) \
TORCH_CHECK(x.is_contiguous(), #x " must be contiguous")
#define CHECK_INPUT(x) \
CHECK_CUDA(x); \
CHECK_CONTIGUOUS(x)
// Input check and call to CUDA OP
// Backward method not required
torch::Tensor ngram_repeat_block_forward(torch::Tensor tokens,
torch::Tensor lprobs, int bsz,
int step, int beam_size,
int no_repeat_ngram_size) {
CHECK_INPUT(tokens);
CHECK_INPUT(lprobs);
assert(bsz > 0);
assert(step >= 0);
assert(beam_size > 0);
assert(no_repeat_ngram_size > 0);
return ngram_repeat_block_cuda_forward(tokens, lprobs, bsz, step, beam_size,
no_repeat_ngram_size);
}
PYBIND11_MODULE(TORCH_EXTENSION_NAME, m) {
m.def("forward", &ngram_repeat_block_forward,
"No Repeat Ngram Block forward (CUDA)");
}
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