wehub-resource-sync
161 lines
5.2 KiB
Plaintext
161 lines
5.2 KiB
Plaintext
/* ******************************************************************************
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*
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#include <exceptions/cuda_exception.h>
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#include <execution/AffinityManager.h>
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#include <execution/LaunchContext.h>
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#include <helpers/cublasHelper.h>
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#include <helpers/logger.h>
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#include <thread>
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thread_local sd::ContextBuffers contextBuffers = sd::ContextBuffers();
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namespace sd {
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// This avoids static destruction order crashes during JVM shutdown
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std::vector<LaunchContext*>& LaunchContext::contexts() {
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static std::vector<LaunchContext*>* _contexts = new std::vector<LaunchContext*>();
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return *_contexts;
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}
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std::mutex LaunchContext::_mutex;
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SD_MAP_IMPL<int, std::mutex*> LaunchContext::_deviceMutexes;
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////////////////////////////////////////////////////////////////////////
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LaunchContext::LaunchContext(cudaStream_t* cudaStream, cudaStream_t& specialCudaStream, void* reductionPointer,
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void* scalarPointer, int* allocationPointer) {
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_workspace = nullptr;
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_isAllocated = false;
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}
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std::mutex* LaunchContext::deviceMutex() {
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auto deviceId = AffinityManager::currentDeviceId();
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return _deviceMutexes[deviceId];
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}
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LaunchContext::~LaunchContext() {
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if (_isAllocated) {
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}
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}
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////////////////////////////////////////////////////////////////////////
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LaunchContext::LaunchContext() {
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// default constructor, just to make clang/ranlib happy
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_workspace = nullptr;
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_deviceID = 0;
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_isAllocated = true;
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}
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LaunchContext::LaunchContext(Pointer cudaStream, Pointer reductionPointer, Pointer scalarPointer,
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Pointer allocationPointer) {
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_isAllocated = false;
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}
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LaunchContext* LaunchContext::defaultContext() {
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/**
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* This method returns LaunchContext, that has multiple entities within:
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* 1) temporary buffers. they must be per-thread
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* 2) CUDA stream. it must be either per-thread or per-device
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* 3) cuBLAS handle. it must be per-device
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*/
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auto deviceId = AffinityManager::currentDeviceId();
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{
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// we need this block synchronous, to avoid double initialization etc
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std::lock_guard<std::mutex> lock(_mutex);
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if (contexts().empty()) {
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// create one context per device
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auto numDevices = AffinityManager::numberOfDevices();
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contexts().resize(numDevices);
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for (int e = 0; e < numDevices; e++) {
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_deviceMutexes[e] = new std::mutex();
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AffinityManager::setCurrentNativeDevice(e);
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contexts().at(e) = new LaunchContext();
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}
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// don't forget to restore device back again
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AffinityManager::setCurrentNativeDevice(deviceId);
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}
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}
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// return context for current device
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return contexts().at(deviceId);
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}
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void* LaunchContext::getReductionPointer() const { return contextBuffers.reductionBuffer(); };
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void* LaunchContext::getScalarPointer() const { return contextBuffers.scalarBuffer(); };
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LongType* LaunchContext::getAllocationPointer() const { return reinterpret_cast<LongType*>(contextBuffers.allocationBuffer()); };
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void* LaunchContext::getCublasHandle() const { return CublasHelper::getInstance().handle(); };
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void* LaunchContext::getCusolverHandle() const { return CublasHelper::getInstance().solver(); };
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cudaStream_t* LaunchContext::getCudaStream() const {
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return reinterpret_cast<cudaStream_t*>(contextBuffers.execStream());
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};
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cudaStream_t* LaunchContext::getCudaSpecialStream() const {
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return reinterpret_cast<cudaStream_t*>(contextBuffers.specialStream());
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;
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};
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void LaunchContext::setReductionPointer(void* reductionPointer) {
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contextBuffers.setReductionBuffer(reductionPointer);
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};
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void LaunchContext::setScalarPointer(void* scalarPointer) { contextBuffers.setScalarBuffer(scalarPointer); };
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void LaunchContext::setAllocationPointer(int* allocationPointer) {
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contextBuffers.setAllocationBuffer(allocationPointer);
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};
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void LaunchContext::setCudaStream(cudaStream_t* cudaStream){
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};
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void LaunchContext::setCudaSpecialStream(cudaStream_t* cudaStream){
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};
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void LaunchContext::setCublasHandle(void* handle) { _cublasHandle = handle; };
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void LaunchContext::swapContextBuffers(ContextBuffers& buffers) { contextBuffers = buffers; };
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void LaunchContext::releaseBuffers() {
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contextBuffers.release();
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}
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bool LaunchContext::isInitialized() { return contextBuffers.isInitialized(); }
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void* LaunchContext::getCuDnnHandle() const { return CublasHelper::getInstance().cudnn(); }
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ErrorReference* LaunchContext::errorReference() { return contextBuffers.errorReference(); }
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void* LaunchContext::engine() { return _engine; }
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} // namespace sd
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