1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors. 2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 3 // 4 // SPDX-License-Identifier: BSD-2-Clause 5 // 6 // This file is part of CEED: http://github.com/ceed 7 8 #include <ceed/ceed.h> 9 #include <ceed/backend.h> 10 #include <string.h> 11 #include "ceed-cuda-gen.h" 12 13 //------------------------------------------------------------------------------ 14 // Backend init 15 //------------------------------------------------------------------------------ 16 static int CeedInit_Cuda_gen(const char *resource, Ceed ceed) { 17 int ierr; 18 19 char *resource_root; 20 ierr = CeedCudaGetResourceRoot(ceed, resource, &resource_root); 21 CeedChkBackend(ierr); 22 if (strcmp(resource_root, "/gpu/cuda") 23 && strcmp(resource_root, "/gpu/cuda/gen")) 24 // LCOV_EXCL_START 25 return CeedError(ceed, CEED_ERROR_BACKEND, 26 "Cuda backend cannot use resource: %s", resource); 27 // LCOV_EXCL_STOP 28 ierr = CeedFree(&resource_root); CeedChkBackend(ierr); 29 30 Ceed_Cuda *data; 31 ierr = CeedCalloc(1, &data); CeedChkBackend(ierr); 32 ierr = CeedSetData(ceed, data); CeedChkBackend(ierr); 33 ierr = CeedCudaInit(ceed, resource); CeedChkBackend(ierr); 34 35 Ceed ceedshared; 36 CeedInit("/gpu/cuda/shared", &ceedshared); 37 ierr = CeedSetDelegate(ceed, ceedshared); CeedChkBackend(ierr); 38 39 const char fallbackresource[] = "/gpu/cuda/ref"; 40 ierr = CeedSetOperatorFallbackResource(ceed, fallbackresource); 41 CeedChkBackend(ierr); 42 43 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionCreate", 44 CeedQFunctionCreate_Cuda_gen); CeedChkBackend(ierr); 45 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate", 46 CeedOperatorCreate_Cuda_gen); CeedChkBackend(ierr); 47 ierr = CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", 48 CeedDestroy_Cuda); CeedChkBackend(ierr); 49 return CEED_ERROR_SUCCESS; 50 } 51 52 //------------------------------------------------------------------------------ 53 // Register backend 54 //------------------------------------------------------------------------------ 55 CEED_INTERN int CeedRegister_Cuda_Gen(void) { 56 return CeedRegister("/gpu/cuda/gen", CeedInit_Cuda_gen, 20); 57 } 58 //------------------------------------------------------------------------------ 59