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-sycl-shared.hpp" 9 10 #include <ceed/backend.h> 11 #include <ceed/ceed.h> 12 13 #include <sstream> 14 #include <string> 15 #include <string_view> 16 17 //------------------------------------------------------------------------------ 18 // Backend init 19 //------------------------------------------------------------------------------ 20 static int CeedInit_Sycl_shared(const char *resource, Ceed ceed) { 21 char *resource_root; 22 CeedCallBackend(CeedGetResourceRoot(ceed, resource, ":", &resource_root)); 23 CeedCheck(!std::strcmp(resource_root, "/gpu/sycl/shared") || !std::strcmp(resource_root, "/cpu/sycl/shared"), ceed, CEED_ERROR_BACKEND, 24 "Sycl backend cannot use resource: %s", resource); 25 std::string_view root_view = resource_root; 26 27 auto suffix_length = root_view.size() - root_view.rfind("shared"); 28 root_view.remove_suffix(suffix_length); 29 30 std::ostringstream ref_resource; 31 ref_resource << root_view << "ref"; 32 33 CeedCallBackend(CeedFree(&resource_root)); 34 CeedCallBackend(CeedSetDeterministic(ceed, true)); 35 36 Ceed_Sycl *data; 37 CeedCallBackend(CeedCalloc(1, &data)); 38 CeedCallBackend(CeedSetData(ceed, data)); 39 CeedCallBackend(CeedInit_Sycl(ceed, resource)); 40 41 Ceed ceed_ref; 42 CeedCallBackend(CeedInit(ref_resource.str().c_str(), &ceed_ref)); 43 44 Ceed_Sycl *ref_data; 45 CeedCallBackend(CeedGetData(ceed_ref, &ref_data)); 46 47 // Need to use the same queue everywhere for correct synchronization 48 ref_data->sycl_queue = data->sycl_queue; 49 ref_data->sycl_context = data->sycl_context; 50 ref_data->sycl_device = data->sycl_device; 51 52 CeedCallBackend(CeedSetDelegate(ceed, ceed_ref)); 53 54 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Ceed", ceed, "BasisCreateTensorH1", CeedBasisCreateTensorH1_Sycl_shared)); 55 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Ceed", ceed, "Destroy", CeedDestroy_Sycl)); 56 return CEED_ERROR_SUCCESS; 57 } 58 59 //------------------------------------------------------------------------------ 60 // Register backend 61 //------------------------------------------------------------------------------ 62 CEED_INTERN int CeedRegister_Sycl_Shared(void) { 63 CeedCallBackend(CeedRegister("/gpu/sycl/shared", CeedInit_Sycl_shared, 25)); 64 CeedCallBackend(CeedRegister("/cpu/sycl/shared", CeedInit_Sycl_shared, 35)); 65 return CEED_ERROR_SUCCESS; 66 } 67 68 //------------------------------------------------------------------------------ 69