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102 lines
4.1 KiB
Plaintext
102 lines
4.1 KiB
Plaintext
/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef QUASIRANDOMGENERATOR_GPU_CUH
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#define QUASIRANDOMGENERATOR_GPU_CUH
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#include <nvrtc_helper.h>
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#include "quasirandomGenerator_common.h"
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// Fast integer multiplication
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#define MUL(a, b) __umul24(a, b)
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// Global variables for nvrtc outputs
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char *cubin;
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size_t cubinSize;
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CUmodule module;
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////////////////////////////////////////////////////////////////////////////////
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// GPU code
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// Niederreiter quasirandom number generation kernel
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////////////////////////////////////////////////////////////////////////////////
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// Table initialization routine
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void initTableGPU(unsigned int tableCPU[QRNG_DIMENSIONS][QRNG_RESOLUTION]) {
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CUdeviceptr c_Table;
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checkCudaErrors(cuModuleGetGlobal(&c_Table, NULL, module, "c_Table"));
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checkCudaErrors(
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cuMemcpyHtoD(c_Table, tableCPU,
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QRNG_DIMENSIONS * QRNG_RESOLUTION * sizeof(unsigned int)));
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}
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// Host-side interface
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void quasirandomGeneratorGPU(CUdeviceptr d_Output, unsigned int seed,
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unsigned int N) {
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dim3 threads(128, QRNG_DIMENSIONS);
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dim3 cudaGridSize(128, 1, 1);
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CUfunction kernel_addr;
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checkCudaErrors(
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cuModuleGetFunction(&kernel_addr, module, "quasirandomGeneratorKernel"));
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void *args[] = {(void *)&d_Output, (void *)&seed, (void *)&N};
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checkCudaErrors(cuLaunchKernel(kernel_addr, cudaGridSize.x, cudaGridSize.y,
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cudaGridSize.z, /* grid dim */
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threads.x, threads.y,
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threads.z, /* block dim */
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0, 0, /* shared mem, stream */
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&args[0], /* arguments */
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0));
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checkCudaErrors(cuCtxSynchronize());
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}
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void inverseCNDgpu(CUdeviceptr d_Output, unsigned int N) {
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dim3 threads(128, 1, 1);
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dim3 cudaGridSize(128, 1, 1);
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CUfunction kernel_addr;
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checkCudaErrors(
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cuModuleGetFunction(&kernel_addr, module, "inverseCNDKernel"));
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void *args[] = {(void *)&d_Output, (void *)&N};
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checkCudaErrors(cuLaunchKernel(kernel_addr, cudaGridSize.x, cudaGridSize.y,
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cudaGridSize.z, /* grid dim */
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threads.x, threads.y,
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threads.z, /* block dim */
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0, 0, /* shared mem, stream */
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&args[0], /* arguments */
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0));
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checkCudaErrors(cuCtxSynchronize());
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}
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#endif
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