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 <stdio.h> 19 #include "ceed-ref.h" 20 21 static int CeedQFunctionApply_Ref(CeedQFunction qf, CeedInt Q, 22 CeedVector *U, CeedVector *V) { 23 int ierr; 24 CeedQFunction_Ref *impl; 25 ierr = CeedQFunctionGetData(qf, (void *)&impl); CeedChk(ierr); 26 27 void *ctx; 28 ierr = CeedQFunctionGetContext(qf, &ctx); CeedChk(ierr); 29 30 int (*f)() = NULL; 31 ierr = CeedQFunctionGetUserFunction(qf, (int (* *)())&f); CeedChk(ierr); 32 33 CeedInt nIn, nOut; 34 ierr = CeedQFunctionGetNumArgs(qf, &nIn, &nOut); CeedChk(ierr); 35 36 for (int i = 0; i<nIn; i++) { 37 ierr = CeedVectorGetArrayRead(U[i], CEED_MEM_HOST, &impl->inputs[i]); 38 CeedChk(ierr); 39 } 40 for (int i = 0; i<nOut; i++) { 41 ierr = CeedVectorGetArray(V[i], CEED_MEM_HOST, &impl->outputs[i]); 42 CeedChk(ierr); 43 } 44 45 ierr = f(ctx, Q, impl->inputs, impl->outputs); CeedChk(ierr); 46 47 for (int i = 0; i<nIn; i++) { 48 ierr = CeedVectorRestoreArrayRead(U[i], &impl->inputs[i]); CeedChk(ierr); 49 } 50 for (int i = 0; i<nOut; i++) { 51 ierr = CeedVectorRestoreArray(V[i], &impl->outputs[i]); CeedChk(ierr); 52 } 53 54 return 0; 55 } 56 57 static int CeedQFunctionDestroy_Ref(CeedQFunction qf) { 58 int ierr; 59 CeedQFunction_Ref *impl; 60 ierr = CeedQFunctionGetData(qf, (void *)&impl); CeedChk(ierr); 61 62 ierr = CeedFree(&impl->inputs); CeedChk(ierr); 63 ierr = CeedFree(&impl->outputs); CeedChk(ierr); 64 ierr = CeedFree(&impl); CeedChk(ierr); 65 66 return 0; 67 } 68 69 int CeedQFunctionCreate_Ref(CeedQFunction qf) { 70 int ierr; 71 Ceed ceed; 72 ierr = CeedQFunctionGetCeed(qf, &ceed); CeedChk(ierr); 73 74 CeedQFunction_Ref *impl; 75 ierr = CeedCalloc(1, &impl); CeedChk(ierr); 76 ierr = CeedCalloc(16, &impl->inputs); CeedChk(ierr); 77 ierr = CeedCalloc(16, &impl->outputs); CeedChk(ierr); 78 ierr = CeedQFunctionSetData(qf, (void *)&impl); CeedChk(ierr); 79 80 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Apply", 81 CeedQFunctionApply_Ref); CeedChk(ierr); 82 ierr = CeedSetBackendFunction(ceed, "QFunction", qf, "Destroy", 83 CeedQFunctionDestroy_Ref); CeedChk(ierr); 84 85 return 0; 86 } 87