113 lines
2.7 KiB
C++
113 lines
2.7 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/kernel.h"
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#include "isaac/driver/buffer.h"
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#include <iostream>
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#include <cstring>
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namespace isaac
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{
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namespace driver
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{
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Kernel::Kernel(Program const & program, const char * name) : backend_(program.backend_), address_bits_(program.context().device().address_bits()), h_(backend_, true)
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{
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switch(backend_)
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{
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case CUDA:
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cu_params_store_.reserve(64);
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cu_params_.reserve(64);
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cuda::check(dispatch::cuModuleGetFunction(&h_.cu(), program.h_.cu(), name));\
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break;
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case OPENCL:
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cl_int err;
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h_.cl() = dispatch::clCreateKernel(program.h_.cl(), name, &err);
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ocl::check(err);
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break;
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default:
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throw;
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}
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}
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void Kernel::setArg(unsigned int index, std::size_t size, void* ptr)
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{
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switch(backend_)
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{
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case CUDA:
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if(index + 1> cu_params_store_.size())
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{
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cu_params_store_.resize(index+1);
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cu_params_.resize(index+1);
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}
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cu_params_store_[index].reset(malloc(size), free);
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memcpy(cu_params_store_[index].get(), ptr, size);
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cu_params_[index] = cu_params_store_[index].get();
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break;
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case OPENCL:
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ocl::check(dispatch::clSetKernelArg(h_.cl(), index, size, ptr));
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break;
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default:
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throw;
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}
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}
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void Kernel::setArg(unsigned int index, Buffer const & data)
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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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setArg(index, sizeof(CUdeviceptr), (void*)&data.h_.cu()); break;
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}
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case OPENCL:
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ocl::check(dispatch::clSetKernelArg(h_.cl(), index, sizeof(cl_mem), (void*)&data.h_.cl()));
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break;
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default: throw;
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}
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}
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void Kernel::setSizeArg(unsigned int index, size_t N)
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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 NN = static_cast<cl_int>(N);
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setArg(index, sizeof(int), &NN);
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break;
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}
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case OPENCL:
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{
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cl_int NN = static_cast<cl_int>(N);
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setArg(index, 4, &NN);
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break;
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}
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default: throw;
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}
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}
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}
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}
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