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 <string.h> 18 #include <stdarg.h> 19 #include "ceed-cuda-shared.h" 20 21 //------------------------------------------------------------------------------ 22 // Backend init 23 //------------------------------------------------------------------------------ 24 static int CeedInit_Cuda_shared(const char *resource, Ceed ceed) { 25 int ierr; 26 const int nrc = 9; // number of characters in resource 27 if (strncmp(resource, "/gpu/cuda/shared", nrc)) 28 // LCOV_EXCL_START 29 return CeedError(ceed, 1, "Cuda backend cannot use resource: %s", resource); 30 // LCOV_EXCL_STOP 31 ierr = CeedSetDeterministic(ceed, true); CeedChk(ierr); 32 33 Ceed ceedreg; 34 CeedInit("/gpu/cuda/reg", &ceedreg); 35 ierr = CeedSetDelegate(ceed, ceedreg); CeedChk(ierr); 36 37 Ceed_Cuda_shared *data; 38 ierr = CeedCalloc(1,&data); CeedChk(ierr); 39 ierr = CeedSetData(ceed,(void *)&data); CeedChk(ierr); 40 ierr = CeedCudaInit(ceed, resource, nrc); CeedChk(ierr); 41 42 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateTensorH1", 43 CeedBasisCreateTensorH1_Cuda_shared); 44 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 45 CeedDestroy_Cuda); CeedChk(ierr); 46 CeedChk(ierr); 47 return 0; 48 } 49 50 //------------------------------------------------------------------------------ 51 // Register backend 52 //------------------------------------------------------------------------------ 53 __attribute__((constructor)) 54 static void Register(void) { 55 CeedRegister("/gpu/cuda/shared", CeedInit_Cuda_shared, 40); 56 } 57 //------------------------------------------------------------------------------ 58