1*9ba83ac0SJeremy L Thompson // Copyright (c) 2017-2026, Lawrence Livermore National Security, LLC and other CEED contributors. 23d8e8822SJeremy L Thompson // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 30d0321e0SJeremy L Thompson // 43d8e8822SJeremy L Thompson // SPDX-License-Identifier: BSD-2-Clause 50d0321e0SJeremy L Thompson // 63d8e8822SJeremy L Thompson // This file is part of CEED: http://github.com/ceed 70d0321e0SJeremy L Thompson 82b730f8bSJeremy L Thompson #include "ceed-cuda-ref.h" 92b730f8bSJeremy L Thompson 1049aac155SJeremy L Thompson #include <ceed.h> 110d0321e0SJeremy L Thompson #include <ceed/backend.h> 1249aac155SJeremy L Thompson #include <stdbool.h> 130d0321e0SJeremy L Thompson #include <string.h> 140d0321e0SJeremy L Thompson 1549aac155SJeremy L Thompson #include "../cuda/ceed-cuda-common.h" 1649aac155SJeremy L Thompson 170d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 180d0321e0SJeremy L Thompson // CUDA preferred MemType 190d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 20437930d1SJeremy L Thompson static int CeedGetPreferredMemType_Cuda(CeedMemType *mem_type) { 21437930d1SJeremy L Thompson *mem_type = CEED_MEM_DEVICE; 220d0321e0SJeremy L Thompson return CEED_ERROR_SUCCESS; 230d0321e0SJeremy L Thompson } 240d0321e0SJeremy L Thompson 250d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 260d0321e0SJeremy L Thompson // Get CUBLAS handle 270d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 28eb7e6cafSJeremy L Thompson int CeedGetCublasHandle_Cuda(Ceed ceed, cublasHandle_t *handle) { 290d0321e0SJeremy L Thompson Ceed_Cuda *data; 300d0321e0SJeremy L Thompson 31ca735530SJeremy L Thompson CeedCallBackend(CeedGetData(ceed, &data)); 322b730f8bSJeremy L Thompson if (!data->cublas_handle) CeedCallCublas(ceed, cublasCreate(&data->cublas_handle)); 330d0321e0SJeremy L Thompson *handle = data->cublas_handle; 340d0321e0SJeremy L Thompson return CEED_ERROR_SUCCESS; 350d0321e0SJeremy L Thompson } 360d0321e0SJeremy L Thompson 370d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 380d0321e0SJeremy L Thompson // Backend Init 390d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 40eb7e6cafSJeremy L Thompson static int CeedInit_Cuda_ref(const char *resource, Ceed ceed) { 41ca735530SJeremy L Thompson Ceed_Cuda *data; 42b11824b3SJeremy L Thompson char *resource_root; 43ca735530SJeremy L Thompson 44bc246734SJeremy L Thompson CeedCallBackend(CeedGetResourceRoot(ceed, resource, ":", &resource_root)); 456574a04fSJeremy L Thompson CeedCheck(!strcmp(resource_root, "/gpu/cuda/ref"), ceed, CEED_ERROR_BACKEND, "Cuda backend cannot use resource: %s", resource); 462b730f8bSJeremy L Thompson CeedCallBackend(CeedFree(&resource_root)); 472b730f8bSJeremy L Thompson CeedCallBackend(CeedSetDeterministic(ceed, true)); 480d0321e0SJeremy L Thompson 492b730f8bSJeremy L Thompson CeedCallBackend(CeedCalloc(1, &data)); 502b730f8bSJeremy L Thompson CeedCallBackend(CeedSetData(ceed, data)); 51eb7e6cafSJeremy L Thompson CeedCallBackend(CeedInit_Cuda(ceed, resource)); 520d0321e0SJeremy L Thompson 532b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "GetPreferredMemType", CeedGetPreferredMemType_Cuda)); 542b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "VectorCreate", CeedVectorCreate_Cuda)); 552b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateTensorH1", CeedBasisCreateTensorH1_Cuda)); 562b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateH1", CeedBasisCreateH1_Cuda)); 57d075f50bSSebastian Grimberg CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateHdiv", CeedBasisCreateHdiv_Cuda)); 58d075f50bSSebastian Grimberg CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "BasisCreateHcurl", CeedBasisCreateHcurl_Cuda)); 592b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "ElemRestrictionCreate", CeedElemRestrictionCreate_Cuda)); 60b20a4af9SJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "ElemRestrictionCreateAtPoints", CeedElemRestrictionCreate_Cuda)); 612b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionCreate", CeedQFunctionCreate_Cuda)); 622b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "QFunctionContextCreate", CeedQFunctionContextCreate_Cuda)); 632b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreate", CeedOperatorCreate_Cuda)); 64756ca9e9SJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "OperatorCreateAtPoints", CeedOperatorCreateAtPoints_Cuda)); 652b730f8bSJeremy L Thompson CeedCallBackend(CeedSetBackendFunction(ceed, "Ceed", ceed, "Destroy", CeedDestroy_Cuda)); 660d0321e0SJeremy L Thompson return CEED_ERROR_SUCCESS; 670d0321e0SJeremy L Thompson } 680d0321e0SJeremy L Thompson 690d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 700d0321e0SJeremy L Thompson // Backend Register 710d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 72eb7e6cafSJeremy L Thompson CEED_INTERN int CeedRegister_Cuda(void) { return CeedRegister("/gpu/cuda/ref", CeedInit_Cuda_ref, 40); } 732a86cc9dSSebastian Grimberg 740d0321e0SJeremy L Thompson //------------------------------------------------------------------------------ 75