xref: /libCEED/tests/t406-qfunction.h (revision b44031f1ab72d4d6b042b088e4dd9e7eec2a16b9)
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 // Note: intentionally testing strange spacing in '#include's
18 #include  <math.h>
19 # include   "t406-qfunction-helper.h"
20 
21 CEED_QFUNCTION(setup)(void *ctx, const CeedInt Q, const CeedScalar *const *in,
22                       CeedScalar *const *out) {
23   const CeedScalar *w = in[0];
24   CeedScalar *q_data = out[0];
25   for (CeedInt i=0; i<Q; i++) {
26     q_data[i] = w[i];
27   }
28   return 0;
29 }
30 
31 CEED_QFUNCTION(mass)(void *ctx, const CeedInt Q, const CeedScalar *const *in,
32                      CeedScalar *const *out) {
33   const CeedScalar *q_data = in[0], *u = in[1];
34   CeedScalar *v = out[0];
35   for (CeedInt i=0; i<Q; i++) {
36     v[i] = q_data[i] * (times_two(u[i]) + times_three(u[i])) * sqrt(2.);
37   }
38   return 0;
39 }
40