1241a4b83SYohann // Copyright (c) 2017-2018, Lawrence Livermore National Security, LLC. 2241a4b83SYohann // Produced at the Lawrence Livermore National Laboratory. LLNL-CODE-734707. 3241a4b83SYohann // All Rights reserved. See files LICENSE and NOTICE for details. 4241a4b83SYohann // 5241a4b83SYohann // This file is part of CEED, a collection of benchmarks, miniapps, software 6241a4b83SYohann // libraries and APIs for efficient high-order finite element and spectral 7241a4b83SYohann // element discretizations for exascale applications. For more information and 8241a4b83SYohann // source code availability see http://github.com/ceed. 9241a4b83SYohann // 10241a4b83SYohann // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11241a4b83SYohann // a collaborative effort of two U.S. Department of Energy organizations (Office 12241a4b83SYohann // of Science and the National Nuclear Security Administration) responsible for 13241a4b83SYohann // the planning and preparation of a capable exascale ecosystem, including 14241a4b83SYohann // software, applications, hardware, advanced system engineering and early 15241a4b83SYohann // testbed platforms, in support of the nation's exascale computing imperative. 16241a4b83SYohann 17ec3da8bcSJed Brown #include <ceed/ceed.h> 18ec3da8bcSJed Brown #include <ceed/backend.h> 19241a4b83SYohann #include <string.h> 20241a4b83SYohann #include "ceed-cuda-gen.h" 213d576824SJeremy L Thompson #include "../cuda/ceed-cuda.h" 22241a4b83SYohann 23ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 24ab213215SJeremy L Thompson // Backend init 25ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 26241a4b83SYohann static int CeedInit_Cuda_gen(const char *resource, Ceed ceed) { 27241a4b83SYohann int ierr; 28241a4b83SYohann const int nrc = 9; // number of characters in resource 29241a4b83SYohann if (strncmp(resource, "/gpu/cuda/gen", nrc)) 3052d8ac88SJeremy L Thompson // LCOV_EXCL_START 31e15f9bd0SJeremy L Thompson return CeedError(ceed, CEED_ERROR_BACKEND, 32e15f9bd0SJeremy L Thompson "Cuda backend cannot use resource: %s", resource); 3352d8ac88SJeremy L Thompson // LCOV_EXCL_STOP 34241a4b83SYohann 35*6dbfb411Snbeams Ceed_Cuda *data; 36e15f9bd0SJeremy L Thompson ierr = CeedCalloc(1, &data); CeedChkBackend(ierr); 37e15f9bd0SJeremy L Thompson ierr = CeedSetData(ceed, data); CeedChkBackend(ierr); 38e15f9bd0SJeremy L Thompson ierr = CeedCudaInit(ceed, resource, nrc); CeedChkBackend(ierr); 39abfaacbbSSander Arens 40*6dbfb411Snbeams Ceed ceedshared; 41*6dbfb411Snbeams CeedInit("/gpu/cuda/shared", &ceedshared); 42*6dbfb411Snbeams ierr = CeedSetDelegate(ceed, ceedshared); CeedChkBackend(ierr); 43*6dbfb411Snbeams 44b1d74153SJeremy L Thompson const char fallbackresource[] = "/gpu/cuda/ref"; 45e15f9bd0SJeremy L Thompson ierr = CeedSetOperatorFallbackResource(ceed, fallbackresource); 46e15f9bd0SJeremy L Thompson CeedChkBackend(ierr); 47ccaff030SJeremy L Thompson 48241a4b83SYohann ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionCreate", 49e15f9bd0SJeremy L Thompson CeedQFunctionCreate_Cuda_gen); CeedChkBackend(ierr); 50241a4b83SYohann ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate", 51e15f9bd0SJeremy L Thompson CeedOperatorCreate_Cuda_gen); CeedChkBackend(ierr); 5273b3ccafSJeremy L Thompson ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 53e15f9bd0SJeremy L Thompson CeedDestroy_Cuda); CeedChkBackend(ierr); 54e15f9bd0SJeremy L Thompson return CEED_ERROR_SUCCESS; 55241a4b83SYohann } 56241a4b83SYohann 57ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 58ab213215SJeremy L Thompson // Register backend 59ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 601d013790SJed Brown CEED_INTERN int CeedRegister_Cuda_Gen(void) { 611d013790SJed Brown return CeedRegister("/gpu/cuda/gen", CeedInit_Cuda_gen, 20); 62241a4b83SYohann } 63ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 64