1 // Copyright (c) 2017-2018, Lawrence Livermore National Security, LLC. 2 // Produced at the Lawrence Livermore National Laboratory. LLNL-CODE-734707. 3 // All Rights reserved. See files LICENSE and NOTICE for details. 4 // 5 // This file is part of CEED, a collection of benchmarks, miniapps, software 6 // libraries and APIs for efficient high-order finite element and spectral 7 // element discretizations for exascale applications. For more information and 8 // source code availability see http://github.com/ceed. 9 // 10 // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11 // a collaborative effort of two U.S. Department of Energy organizations (Office 12 // of Science and the National Nuclear Security Administration) responsible for 13 // the planning and preparation of a capable exascale ecosystem, including 14 // software, applications, hardware, advanced system engineering and early 15 // testbed platforms, in support of the nation's exascale computing imperative. 16 17 #include <string.h> 18 #include "ceed-ref.h" 19 20 static int CeedQFunctionApply_Ref(CeedQFunction qf, CeedInt Q, 21 CeedVector *U, CeedVector *V) { 22 int ierr; 23 CeedQFunction_Ref *impl; 24 ierr = CeedQFunctionGetData(qf, (void*)&impl); CeedChk(ierr); 25 26 void *ctx; 27 ierr = CeedQFunctionGetContext(qf, &ctx); CeedChk(ierr); 28 29 int (*f)() = NULL; 30 ierr = CeedQFunctionGetUserFunction(qf, (int (**)())&f); CeedChk(ierr); 31 32 CeedInt nIn, nOut; 33 ierr = CeedQFunctionGetNumArgs(qf, &nIn, &nOut); CeedChk(ierr); 34 35 for (int i = 0; i<nIn; i++) { 36 if (U[i]) { 37 ierr = CeedVectorGetArrayRead(U[i], CEED_MEM_HOST, &impl->inputs[i]); 38 CeedChk(ierr); 39 } 40 } 41 for (int i = 0; i<nOut; i++) { 42 if (U[i]) { 43 ierr = CeedVectorGetArray(V[i], CEED_MEM_HOST, &impl->outputs[i]); 44 CeedChk(ierr); 45 } 46 } 47 48 ierr = f(ctx, Q, impl->inputs, impl->outputs); CeedChk(ierr); 49 50 for (int i = 0; i<nIn; i++) { 51 if (U[i]) { 52 ierr = CeedVectorRestoreArrayRead(U[i], &impl->inputs[i]); CeedChk(ierr); 53 } 54 } 55 for (int i = 0; i<nOut; i++) { 56 if (U[i]) { 57 ierr = CeedVectorRestoreArray(V[i], &impl->outputs[i]); CeedChk(ierr); 58 } 59 } 60 61 return 0; 62 } 63 64 static int CeedQFunctionDestroy_Ref(CeedQFunction qf) { 65 int ierr; 66 CeedQFunction_Ref *impl; 67 ierr = CeedQFunctionGetData(qf, (void*)&impl); CeedChk(ierr); 68 69 ierr = CeedFree(&impl->inputs); CeedChk(ierr); 70 ierr = CeedFree(&impl->outputs); CeedChk(ierr); 71 ierr = CeedFree(&impl); CeedChk(ierr); 72 73 return 0; 74 } 75 76 int CeedQFunctionCreate_Ref(CeedQFunction qf) { 77 int ierr; 78 Ceed ceed; 79 ierr = CeedQFunctionGetCeed(qf, &ceed); CeedChk(ierr); 80 81 CeedQFunction_Ref *impl; 82 ierr = CeedCalloc(1, &impl); CeedChk(ierr); 83 ierr = CeedCalloc(16, &impl->inputs); CeedChk(ierr); 84 ierr = CeedCalloc(16, &impl->outputs); CeedChk(ierr); 85 ierr = CeedQFunctionSetData(qf, (void*)&impl); CeedChk(ierr); 86 87 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Apply", 88 CeedQFunctionApply_Ref); CeedChk(ierr); 89 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Destroy", 90 CeedQFunctionDestroy_Ref); CeedChk(ierr); 91 92 return 0; 93 } 94