1 /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 #if CUBLAS_VER_MAJOR >= 11 16 #include "third_party/gpus/cuda/include/cublas_v2.h" 17 #else 18 #include "third_party/gpus/cuda/include/cublas.h" 19 #endif 20 #include "third_party/gpus/cuda/include/cuda.h" 21 #include "tensorflow/stream_executor/lib/env.h" 22 #include "tensorflow/stream_executor/platform/dso_loader.h" 23 24 // Implements the cuBLAS API by forwarding to cuBLAS loaded from the DSO. 25 // Note that it does not implement the v1 interface. 26 27 namespace { 28 // Returns DSO handle or null if loading the DSO fails. GetDsoHandle()29void* GetDsoHandle() { 30 #ifdef PLATFORM_GOOGLE 31 return nullptr; 32 #else 33 static auto handle = []() -> void* { 34 auto handle_or = stream_executor::internal::DsoLoader::GetCublasDsoHandle(); 35 if (!handle_or.ok()) return nullptr; 36 return handle_or.ValueOrDie(); 37 }(); 38 return handle; 39 #endif 40 } 41 42 template <typename T> LoadSymbol(const char * symbol_name)43T LoadSymbol(const char* symbol_name) { 44 void* symbol = nullptr; 45 if (auto handle = GetDsoHandle()) { 46 stream_executor::port::Env::Default() 47 ->GetSymbolFromLibrary(handle, symbol_name, &symbol) 48 .IgnoreError(); 49 } 50 return reinterpret_cast<T>(symbol); 51 } 52 LogFatalSymbolNotFound(const char * symbol_name)53void LogFatalSymbolNotFound(const char* symbol_name) { 54 LOG(FATAL) << symbol_name << " symbol not found."; 55 } 56 GetSymbolNotFoundError()57cublasStatus_t GetSymbolNotFoundError() { return CUBLAS_STATUS_INTERNAL_ERROR; } 58 } // namespace 59 60 #if CUDA_VERSION < 9000 61 typedef enum {} cublasMath_t; 62 #endif 63 64 #if CUDA_VERSION < 10000 65 #include "tensorflow/stream_executor/cuda/cublas_9_0.inc" 66 #elif CUDA_VERSION < 10010 67 #include "tensorflow/stream_executor/cuda/cublas_10_0.inc" 68 #elif CUDA_VERSION < 10020 69 #include "tensorflow/stream_executor/cuda/cublas_10_1.inc" 70 #elif CUDA_VERSION < 11000 71 #include "tensorflow/stream_executor/cuda/cublas_10_2.inc" 72 #else 73 #include "tensorflow/stream_executor/cuda/cublas_11_0.inc" 74 #endif 75