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" 21241a4b83SYohann 22ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 23ab213215SJeremy L Thompson // Backend init 24ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 25241a4b83SYohann static int CeedInit_Cuda_gen(const char *resource, Ceed ceed) { 26241a4b83SYohann int ierr; 27*f87d896cSJeremy L Thompson 28*f87d896cSJeremy L Thompson if (strcmp(resource, "/gpu/cuda") && strcmp(resource, "/gpu/cuda/gen")) 2952d8ac88SJeremy L Thompson // LCOV_EXCL_START 30e15f9bd0SJeremy L Thompson return CeedError(ceed, CEED_ERROR_BACKEND, 31e15f9bd0SJeremy L Thompson "Cuda backend cannot use resource: %s", resource); 3252d8ac88SJeremy L Thompson // LCOV_EXCL_STOP 33241a4b83SYohann 346dbfb411Snbeams Ceed_Cuda *data; 35e15f9bd0SJeremy L Thompson ierr = CeedCalloc(1, &data); CeedChkBackend(ierr); 36e15f9bd0SJeremy L Thompson ierr = CeedSetData(ceed, data); CeedChkBackend(ierr); 37*f87d896cSJeremy L Thompson ierr = CeedCudaInit(ceed, resource); CeedChkBackend(ierr); 38abfaacbbSSander Arens 396dbfb411Snbeams Ceed ceedshared; 406dbfb411Snbeams CeedInit("/gpu/cuda/shared", &ceedshared); 416dbfb411Snbeams ierr = CeedSetDelegate(ceed, ceedshared); CeedChkBackend(ierr); 426dbfb411Snbeams 43b1d74153SJeremy L Thompson const char fallbackresource[] = "/gpu/cuda/ref"; 44e15f9bd0SJeremy L Thompson ierr = CeedSetOperatorFallbackResource(ceed, fallbackresource); 45e15f9bd0SJeremy L Thompson CeedChkBackend(ierr); 46ccaff030SJeremy L Thompson 47241a4b83SYohann ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionCreate", 48e15f9bd0SJeremy L Thompson CeedQFunctionCreate_Cuda_gen); CeedChkBackend(ierr); 49241a4b83SYohann ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate", 50e15f9bd0SJeremy L Thompson CeedOperatorCreate_Cuda_gen); CeedChkBackend(ierr); 5173b3ccafSJeremy L Thompson ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 52e15f9bd0SJeremy L Thompson CeedDestroy_Cuda); CeedChkBackend(ierr); 53e15f9bd0SJeremy L Thompson return CEED_ERROR_SUCCESS; 54241a4b83SYohann } 55241a4b83SYohann 56ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 57ab213215SJeremy L Thompson // Register backend 58ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 591d013790SJed Brown CEED_INTERN int CeedRegister_Cuda_Gen(void) { 601d013790SJed Brown return CeedRegister("/gpu/cuda/gen", CeedInit_Cuda_gen, 20); 61241a4b83SYohann } 62ab213215SJeremy L Thompson //------------------------------------------------------------------------------ 63