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OpenCLManager.cpp
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187 lines (158 loc) · 4.75 KB
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#ifdef USE_OPENCL
#include <CL/cl.h>
#include <glog/logging.h>
#include <caffe/util/OpenCL/OpenCLManager.hpp>
#include <caffe/util/OpenCL/OpenCLSupport.hpp>
#include <memory>
#include <string>
#include <vector>
namespace caffe {
OpenCLManager OpenCLManager::instance_;
OpenCLManager::OpenCLManager() : initialized_(
false) {
}
OpenCLManager::~OpenCLManager() {
}
bool OpenCLManager::Init() {
if (instance_.initialized_) {
return true;
}
LOG(INFO)<< "Initialize OpenCL";
instance_.Query();
if (OpenCLManager::GetNumPlatforms() <= 0) {
LOG(FATAL)<< "No OpenCL platforms found.";
return false;
}
// TODO: mechanism for choosing the correct platform.
instance_.current_platform_index_ = 0;
std::tr1::shared_ptr<OpenCLPlatform> pf = CurrentPlatform();
pf->print();
if (!pf->createContext()) {
LOG(FATAL)<< "failed to create OpenCL context for platform "
<< pf->name();
return false;
}
std::vector<std::string> cl_files;
cl_files.push_back(
"src/caffe/util/OpenCL/gemm.cl");
cl_files.push_back(
"src/caffe/util/OpenCL/math_functions.cl");
cl_files.push_back(
"src/caffe/util/OpenCL/im2col.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/pooling_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/relu_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/prelu_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/sigmoid_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/tanh_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/dropout_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/bnll_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/contrastive_loss_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/eltwise_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/lrn_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/softmax_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/softmax_loss_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/threshold_layer.cl");
cl_files.push_back(
"src/caffe/layers/OpenCL/mvn_layer.cl");
std::vector<std::string>::iterator it;
for (it = cl_files.begin(); it != cl_files.end(); it++) {
if (!pf->compile(
*it)) {
LOG(FATAL)<< "failed to create to create OpenCL program for platform "
<< pf->name();
return false;
}
}
if (pf->getNumGPUDevices() < 1) {
LOG(FATAL)<< "No GPU devices available at platform " << pf->name();
return false;
}
pf->SetCurrentDevice(
CL_DEVICE_TYPE_GPU,
instance_.device_id_);
OpenCLDevice& device = pf->CurrentDevice();
if (!device.createQueue()) {
LOG(FATAL)<< "failed to create OpenCL command queue for device "
<< device.name();
return false;
}
if (clblasSetup() != CL_SUCCESS) {
LOG(FATAL)<< "failed to initialize clBlas";
return false;
}
device.print();
instance_.initialized_ = true;
return true;
}
bool OpenCLManager::Query() {
typedef std::vector<cl::Platform> ClPlatforms;
typedef ClPlatforms::iterator ClPlatformsIter;
ClPlatforms cl_platforms;
cl::Platform::get(
&cl_platforms);
if (cl_platforms.empty()) {
LOG(INFO)<< "found no OpenCL platforms.";
return false;
}
for (ClPlatformsIter it = cl_platforms.begin(); it != cl_platforms.end();
++it) {
std::tr1::shared_ptr<OpenCLPlatform> pp = std::tr1::shared_ptr<
OpenCLPlatform>(
new OpenCLPlatform(
*it));
if (!pp->Query()) {
LOG(ERROR)<< "failed to query platform.";
return false;
}
platforms_.push_back(
pp);
}
LOG(INFO)<< "found " << platforms_.size() << " OpenCL platforms";
// FIXME: platform is the first one.
current_platform_index_ = 0;
return true;
}
void OpenCLManager::Print() {
std::cout << "-- OpenCL Manager Information -------------------------------"
<< std::endl;
for (PlatformIter it = instance_.platforms_.begin();
it != instance_.platforms_.end(); it++) {
(*it)->print();
}
}
int OpenCLManager::GetNumPlatforms() {
return instance_.platforms_.size();
}
std::tr1::shared_ptr<OpenCLPlatform> OpenCLManager::getPlatform(
unsigned int idx) {
if (idx >= platforms_.size()) {
LOG(ERROR)<< "platform idx = " << idx << " out of range.";
std::tr1::shared_ptr<OpenCLPlatform> ptr;
return ptr;
}
return platforms_[idx];
}
std::tr1::shared_ptr<OpenCLPlatform> OpenCLManager::CurrentPlatform() {
if (instance_.current_platform_index_ < 0) {
LOG(FATAL)<< "No current platform.";
}
return instance_.platforms_[instance_.current_platform_index_];
}
void OpenCLManager::SetDeviceId(int device_id) {
instance_.device_id_ = device_id;
}
} // namespace caffe
#endif // USE_OPENCL