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 <ceed/ceed.h> 18 #include <ceed/backend.h> 19 #include <stddef.h> 20 #include <string.h> 21 #include "ceed-identity.h" 22 23 /** 24 @brief Set fields identity QFunction that copies inputs directly into outputs 25 **/ 26 static int CeedQFunctionInit_Identity(Ceed ceed, const char *requested, 27 CeedQFunction qf) { 28 int ierr; 29 30 // Check QFunction name 31 const char *name = "Identity"; 32 if (strcmp(name, requested)) 33 // LCOV_EXCL_START 34 return CeedError(ceed, CEED_ERROR_UNSUPPORTED, 35 "QFunction '%s' does not match requested name: %s", 36 name, requested); 37 // LCOV_EXCL_STOP 38 39 // QFunction fields 'input' and 'output' with requested emodes added 40 // by the library rather than being added here 41 42 // Context data 43 CeedQFunctionContext ctx; 44 IdentityCtx ctx_data = {.size = 1}; 45 ierr = CeedQFunctionContextCreate(ceed, &ctx); CeedChk(ierr); 46 ierr = CeedQFunctionContextSetData(ctx, CEED_MEM_HOST, CEED_COPY_VALUES, 47 sizeof(ctx_data), (void *)&ctx_data); 48 CeedChk(ierr); 49 ierr = CeedQFunctionContextRegisterInt32(ctx, "size", offsetof(IdentityCtx, 50 size), "field size of identity QFunction"); CeedChk(ierr); 51 ierr = CeedQFunctionSetContext(qf, ctx); CeedChk(ierr); 52 ierr = CeedQFunctionContextDestroy(&ctx); CeedChk(ierr); 53 54 return CEED_ERROR_SUCCESS; 55 } 56 57 /** 58 @brief Register identity QFunction that copies inputs directly into outputs 59 **/ 60 CEED_INTERN int CeedQFunctionRegister_Identity(void) { 61 return CeedQFunctionRegister("Identity", Identity_loc, 1, Identity, 62 CeedQFunctionInit_Identity); 63 } 64