1 // Copyright (c) 2017-2018, Lawrence Livermore National Security, LLC. 2 // Produced at the Lawrence Livermore National Laboratory. LLNL-CODE-734707. 3 // All Rights reserved. See files LICENSE and NOTICE for details. 4 // 5 // This file is part of CEED, a collection of benchmarks, miniapps, software 6 // libraries and APIs for efficient high-order finite element and spectral 7 // element discretizations for exascale applications. For more information and 8 // source code availability see http://github.com/ceed. 9 // 10 // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11 // a collaborative effort of two U.S. Department of Energy organizations (Office 12 // of Science and the National Nuclear Security Administration) responsible for 13 // the planning and preparation of a capable exascale ecosystem, including 14 // software, applications, hardware, advanced system engineering and early 15 // testbed platforms, in support of the nation's exascale computing imperative. 16 17 #include <ceed/ceed.h> 18 #include <ceed/backend.h> 19 #include <string.h> 20 #include "ceed-cuda-shared.h" 21 22 //------------------------------------------------------------------------------ 23 // Backend init 24 //------------------------------------------------------------------------------ 25 static int CeedInit_Cuda_shared(const char *resource, Ceed ceed) { 26 int ierr; 27 28 if (strcmp(resource, "/gpu/cuda/shared")) 29 // LCOV_EXCL_START 30 return CeedError(ceed, CEED_ERROR_BACKEND, 31 "Cuda backend cannot use resource: %s", resource); 32 // LCOV_EXCL_STOP 33 ierr = CeedSetDeterministic(ceed, true); CeedChk(ierr); 34 35 Ceed_Cuda *data; 36 ierr = CeedCalloc(1, &data); CeedChk(ierr); 37 ierr = CeedSetData(ceed, data); CeedChk(ierr); 38 ierr = CeedCudaInit(ceed, resource); CeedChk(ierr); 39 40 Ceed ceedref; 41 CeedInit("/gpu/cuda/ref", &ceedref); 42 ierr = CeedSetDelegate(ceed, ceedref); CeedChk(ierr); 43 44 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateTensorH1", 45 CeedBasisCreateTensorH1_Cuda_shared); 46 CeedChk(ierr); 47 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 48 CeedDestroy_Cuda); CeedChk(ierr); 49 CeedChk(ierr); 50 return 0; 51 } 52 53 //------------------------------------------------------------------------------ 54 // Register backend 55 //------------------------------------------------------------------------------ 56 CEED_INTERN int CeedRegister_Cuda_Shared(void) { 57 return CeedRegister("/gpu/cuda/shared", CeedInit_Cuda_shared, 25); 58 } 59 //------------------------------------------------------------------------------ 60