xref: /libCEED/backends/cuda-shared/ceed-cuda-shared.c (revision 2f439227254593e594d6ab1b51afd92f56e9ee04)
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-cuda-shared.h"
9 
10 #include <ceed.h>
11 #include <ceed/backend.h>
12 #include <stdbool.h>
13 #include <string.h>
14 
15 #include "../cuda/ceed-cuda-common.h"
16 
17 //------------------------------------------------------------------------------
18 // Backend init
19 //------------------------------------------------------------------------------
20 static int CeedInit_Cuda_shared(const char *resource, Ceed ceed) {
21   Ceed       ceed_ref;
22   Ceed_Cuda *data;
23   char      *resource_root;
24 
25   CeedCallBackend(CeedGetResourceRoot(ceed, resource, ":", &resource_root));
26   CeedCheck(!strcmp(resource_root, "/gpu/cuda/shared"), ceed, CEED_ERROR_BACKEND, "Cuda backend cannot use resource: %s", resource);
27   CeedCallBackend(CeedSetDeterministic(ceed, true));
28 
29   CeedCallBackend(CeedCalloc(1, &data));
30   CeedCallBackend(CeedSetData(ceed, data));
31   CeedCallBackend(CeedInit_Cuda(ceed, resource));
32 
33   CeedCallBackend(CeedInit("/gpu/cuda/ref", &ceed_ref));
34   CeedCallBackend(CeedSetDelegate(ceed, ceed_ref));
35 
36   CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateTensorH1", CeedBasisCreateTensorH1_Cuda_shared));
37   CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", CeedDestroy_Cuda));
38   return CEED_ERROR_SUCCESS;
39 }
40 
41 //------------------------------------------------------------------------------
42 // Register backend
43 //------------------------------------------------------------------------------
44 CEED_INTERN int CeedRegister_Cuda_Shared(void) { return CeedRegister("/gpu/cuda/shared", CeedInit_Cuda_shared, 25); }
45 
46 //------------------------------------------------------------------------------
47