xref: /libCEED/gallery/scale/ceed-scale.c (revision 9df49d7ef0a77c7a3baec2427d8a7274681409b6)
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 <string.h>
20 #include "ceed-scale.h"
21 
22 /**
23   @brief  Set fields for vector scaling QFunction that scales inputs
24 **/
25 static int CeedQFunctionInit_Scale(Ceed ceed, const char *requested,
26                                    CeedQFunction qf) {
27   // Check QFunction name
28   const char *name = "Scale";
29   if (strcmp(name, requested))
30     // LCOV_EXCL_START
31     return CeedError(ceed, CEED_ERROR_UNSUPPORTED,
32                      "QFunction '%s' does not match requested name: %s",
33                      name, requested);
34   // LCOV_EXCL_STOP
35 
36   // QFunction fields 'input' and 'output' with requested emodes added
37   //   by the library rather than being added here
38 
39   return CEED_ERROR_SUCCESS;
40 }
41 
42 /**
43   @brief Register scaling QFunction
44 **/
45 CEED_INTERN int CeedQFunctionRegister_Scale(void) {
46   return CeedQFunctionRegister("Scale", Scale_loc, 1, Scale,
47                                CeedQFunctionInit_Scale);
48 }
49