106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
/*
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* Copyright (c) 2015, PHILIPPE TILLET. All rights reserved.
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*
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* This file is part of ISAAC.
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*
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* ISAAC is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include "isaac/driver/platform.h"
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#include "isaac/driver/device.h"
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#include "helpers/ocl/infos.hpp"
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#include <string>
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#include "cpp/to_string.hpp"
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namespace isaac
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{
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namespace driver
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{
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Platform::Platform(backend_type backend): backend_(backend)
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{
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if(backend==CUDA)
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dispatch::cuInit(0);
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}
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Platform::Platform(cl_platform_id const & platform) : backend_(OPENCL)
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{
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cl_platform_ = platform;
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}
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std::string Platform::version() const
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{
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switch(backend_)
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{
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case CUDA:
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int version;
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dispatch::cuDriverGetVersion(&version);
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return tools::to_string(version);
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case OPENCL:
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return ocl::info<CL_PLATFORM_VERSION>(cl_platform_);
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default: throw;
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}
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}
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std::string Platform::name() const
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{
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switch(backend_)
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{
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case CUDA: return "CUDA";
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case OPENCL: return ocl::info<CL_PLATFORM_NAME>(cl_platform_);
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default: throw;
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}
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}
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cl_platform_id Platform::cl_id() const
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{
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return cl_platform_;
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}
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void Platform::devices(std::vector<Device> & devices) const
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{
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switch(backend_)
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{
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case CUDA:
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{
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int N;
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cuda::check(dispatch::cuDeviceGetCount(&N));
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for(int i = 0 ; i < N ; ++i){
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CUdevice device;
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dispatch::cuDeviceGet(&device, i);
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devices.push_back(Device(device));
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}
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break;
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}
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case OPENCL:
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{
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cl_uint ndevices;
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ocl::check(dispatch::dispatch::clGetDeviceIDs(cl_platform_, CL_DEVICE_TYPE_ALL, 0, NULL, &ndevices));
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std::vector<cl_device_id> device_ids(ndevices);
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ocl::check(dispatch::dispatch::clGetDeviceIDs(cl_platform_, CL_DEVICE_TYPE_ALL, ndevices, device_ids.data(), NULL));
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for(cl_device_id d : device_ids)
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devices.push_back(Device(d));
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break;
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}
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default:
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throw;
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}
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}
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}
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}
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