1 // Copyright (c) 2017-2026, 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-cuda-gen.h"
9
10 #include <ceed.h>
11 #include <ceed/backend.h>
12 #include <string.h>
13
14 #include "../cuda/ceed-cuda-common.h"
15
16 //------------------------------------------------------------------------------
17 // Backend init
18 //------------------------------------------------------------------------------
CeedInit_Cuda_gen(const char * resource,Ceed ceed)19 static int CeedInit_Cuda_gen(const char *resource, Ceed ceed) {
20 char *resource_root;
21 Ceed ceed_shared, ceed_ref;
22 Ceed_Cuda *data;
23
24 CeedCallBackend(CeedGetResourceRoot(ceed, resource, ":", &resource_root));
25 CeedCheck(!strcmp(resource_root, "/gpu/cuda") || !strcmp(resource_root, "/gpu/cuda/gen"), ceed, CEED_ERROR_BACKEND,
26 "Cuda backend cannot use resource: %s", resource);
27 CeedCallBackend(CeedFree(&resource_root));
28
29 CeedCallBackend(CeedCalloc(1, &data));
30 CeedCallBackend(CeedSetData(ceed, data));
31 CeedCallBackend(CeedInit_Cuda(ceed, resource));
32
33 CeedCallBackend(CeedInit("/gpu/cuda/shared", &ceed_shared));
34 CeedCallBackend(CeedSetDelegate(ceed, ceed_shared));
35 CeedCallBackend(CeedDestroy(&ceed_shared));
36
37 CeedCallBackend(CeedInit("/gpu/cuda/ref", &ceed_ref));
38 CeedCallBackend(CeedSetOperatorFallbackCeed(ceed, ceed_ref));
39 CeedCallBackend(CeedDestroy(&ceed_ref));
40
41 CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionCreate", CeedQFunctionCreate_Cuda_gen));
42 CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate", CeedOperatorCreate_Cuda_gen));
43 CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "CompositeOperatorCreate", CeedOperatorCreate_Cuda_gen));
44 CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreateAtPoints", CeedOperatorCreate_Cuda_gen));
45 CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", CeedDestroy_Cuda));
46 return CEED_ERROR_SUCCESS;
47 }
48
49 //------------------------------------------------------------------------------
50 // Register backend
51 //------------------------------------------------------------------------------
CeedRegister_Cuda_Gen(void)52 CEED_INTERN int CeedRegister_Cuda_Gen(void) { return CeedRegister("/gpu/cuda/gen", CeedInit_Cuda_gen, 20); }
53
54 //------------------------------------------------------------------------------
55