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 ierr = CeedVectorGetArrayRead(U[i], CEED_MEM_HOST, &impl->inputs[i]); 37 CeedChk(ierr); 38 } 39 for (int i = 0; i<nOut; i++) { 40 ierr = CeedVectorGetArray(V[i], CEED_MEM_HOST, &impl->outputs[i]); 41 CeedChk(ierr); 42 } 43 44 ierr = f(ctx, Q, impl->inputs, impl->outputs); CeedChk(ierr); 45 46 for (int i = 0; i<nIn; i++) { 47 ierr = CeedVectorRestoreArrayRead(U[i], &impl->inputs[i]); CeedChk(ierr); 48 } 49 for (int i = 0; i<nOut; i++) { 50 ierr = CeedVectorRestoreArray(V[i], &impl->outputs[i]); CeedChk(ierr); 51 } 52 53 return 0; 54 } 55 56 static int CeedQFunctionDestroy_Ref(CeedQFunction qf) { 57 int ierr; 58 CeedQFunction_Ref *impl; 59 ierr = CeedQFunctionGetData(qf, (void *)&impl); CeedChk(ierr); 60 61 ierr = CeedFree(&impl->inputs); CeedChk(ierr); 62 ierr = CeedFree(&impl->outputs); CeedChk(ierr); 63 ierr = CeedFree(&impl); CeedChk(ierr); 64 65 return 0; 66 } 67 68 int CeedQFunctionCreate_Ref(CeedQFunction qf) { 69 int ierr; 70 Ceed ceed; 71 ierr = CeedQFunctionGetCeed(qf, &ceed); CeedChk(ierr); 72 73 CeedQFunction_Ref *impl; 74 ierr = CeedCalloc(1, &impl); CeedChk(ierr); 75 ierr = CeedCalloc(16, &impl->inputs); CeedChk(ierr); 76 ierr = CeedCalloc(16, &impl->outputs); CeedChk(ierr); 77 ierr = CeedQFunctionSetData(qf, (void *)&impl); CeedChk(ierr); 78 79 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Apply", 80 CeedQFunctionApply_Ref); CeedChk(ierr); 81 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Destroy", 82 CeedQFunctionDestroy_Ref); CeedChk(ierr); 83 84 return 0; 85 } 86