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67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
/* Copyright 2019 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef JAXLIB_CUDA_GPU_KERNEL_HELPERS_H_
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#define JAXLIB_CUDA_GPU_KERNEL_HELPERS_H_
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#include <memory>
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "third_party/gpus/cuda/include/cublas_v2.h"
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#include "third_party/gpus/cuda/include/cuda_runtime_api.h"
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#include "third_party/gpus/cuda/include/cusolverDn.h"
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#include "third_party/gpus/cuda/include/cusparse.h"
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#define JAX_AS_STATUS(expr) jax::AsStatus(expr, __FILE__, __LINE__, #expr)
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#define JAX_THROW_IF_ERROR(expr) \
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{ \
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auto s___ = (expr); \
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if (!s___.ok()) throw std::runtime_error(s___.error_message()); \
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}
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#define JAX_RETURN_IF_ERROR(expr) \
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{ \
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auto s___ = (expr); \
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if (!s___.ok()) return s___; \
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}
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namespace jax {
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// Used via JAX_AS_STATUS(expr) macro.
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absl::Status AsStatus(cudaError_t error, const char* file, std::int64_t line,
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const char* expr);
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absl::Status AsStatus(cusolverStatus_t status, const char* file,
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std::int64_t line, const char* expr);
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absl::Status AsStatus(cusparseStatus_t status, const char* file,
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std::int64_t line, const char* expr);
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absl::Status AsStatus(cublasStatus_t status, const char* file,
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std::int64_t line, const char* expr);
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// Builds an array of pointers to each array in a batch, in device memory.
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// Caution: the return value must be kept alive (e.g., via a stream
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// synchronization) until the copy enqueued by MakeBatchPointers on `stream`
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// completes.
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absl::StatusOr<std::unique_ptr<void*[]>> MakeBatchPointers(cudaStream_t stream,
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void* buffer,
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void* dev_ptrs,
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int batch,
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int batch_elem_size);
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} // namespace jax
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#endif // JAXLIB_CUDA_GPU_KERNEL_HELPERS_H_
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