1c532df63SYohann // Copyright (c) 2017-2018, Lawrence Livermore National Security, LLC. 2c532df63SYohann // Produced at the Lawrence Livermore National Laboratory. LLNL-CODE-734707. 3c532df63SYohann // All Rights reserved. See files LICENSE and NOTICE for details. 4c532df63SYohann // 5c532df63SYohann // This file is part of CEED, a collection of benchmarks, miniapps, software 6c532df63SYohann // libraries and APIs for efficient high-order finite element and spectral 7c532df63SYohann // element discretizations for exascale applications. For more information and 8c532df63SYohann // source code availability see http://github.com/ceed. 9c532df63SYohann // 10c532df63SYohann // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11c532df63SYohann // a collaborative effort of two U.S. Department of Energy organizations (Office 12c532df63SYohann // of Science and the National Nuclear Security Administration) responsible for 13c532df63SYohann // the planning and preparation of a capable exascale ecosystem, including 14c532df63SYohann // software, applications, hardware, advanced system engineering and early 15c532df63SYohann // testbed platforms, in support of the nation's exascale computing imperative. 16c532df63SYohann 17ec3da8bcSJed Brown #include <ceed/ceed.h> 18ec3da8bcSJed Brown #include <ceed/backend.h> 19c532df63SYohann #include <string.h> 20c532df63SYohann #include "ceed-cuda-shared.h" 213d576824SJeremy L Thompson #include "../cuda/ceed-cuda.h" 22c532df63SYohann 23ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 24ab213215SJeremy L Thompson // Backend init 25ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 26c532df63SYohann static int CeedInit_Cuda_shared(const char *resource, Ceed ceed) { 27c532df63SYohann int ierr; 28c532df63SYohann const int nrc = 9; // number of characters in resource 29c532df63SYohann if (strncmp(resource, "/gpu/cuda/shared", 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 349525855cSJeremy L Thompson ierr = CeedSetDeterministic(ceed, true); CeedChk(ierr); 35c532df63SYohann 36*6dbfb411Snbeams Ceed_Cuda *data; 37c532df63SYohann ierr = CeedCalloc(1, &data); CeedChk(ierr); 38777ff853SJeremy L Thompson ierr = CeedSetData(ceed, data); CeedChk(ierr); 39abfaacbbSSander Arens ierr = CeedCudaInit(ceed, resource, nrc); CeedChk(ierr); 40abfaacbbSSander Arens 41*6dbfb411Snbeams Ceed ceedref; 42*6dbfb411Snbeams CeedInit("/gpu/cuda/ref", &ceedref); 43*6dbfb411Snbeams ierr = CeedSetDelegate(ceed, ceedref); CeedChk(ierr); 44*6dbfb411Snbeams 45c532df63SYohann ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateTensorH1", 465afe0718Sjeremylt CeedBasisCreateTensorH1_Cuda_shared); 47e75c1c2dSJeremy L Thompson CeedChk(ierr); 4873b3ccafSJeremy L Thompson ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 4973b3ccafSJeremy L Thompson CeedDestroy_Cuda); CeedChk(ierr); 505afe0718Sjeremylt CeedChk(ierr); 51c532df63SYohann return 0; 52c532df63SYohann } 53c532df63SYohann 54ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 55ab213215SJeremy L Thompson // Register backend 56ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 571d013790SJed Brown CEED_INTERN int CeedRegister_Cuda_Shared(void) { 581d013790SJed Brown return CeedRegister("/gpu/cuda/shared", CeedInit_Cuda_shared, 25); 59c532df63SYohann } 60ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 61