xref: /libCEED/tests/t596-operator.h (revision 2129291034139a1db9ffe414bf8bc92a8e43e245)
1 // Copyright (c) 2017-2025, Lawrence Livermore National Security, LLC and other CEED contributors.
2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3 //
4 // SPDX-License-Identifier: BSD-2-Clause
5 //
6 // This file is part of CEED:  http://github.com/ceed
7 
8 #include <ceed/types.h>
9 
10 CEED_QFUNCTION(setup)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
11   const CeedScalar *weight = in[0], *J = in[1];
12   CeedScalar       *rho = out[0];
13 
14   for (CeedInt i = 0; i < Q; i++) {
15     rho[i] = weight[i] * (J[i + Q * 0] * J[i + Q * 3] - J[i + Q * 1] * J[i + Q * 2]);
16   }
17   return 0;
18 }
19 
20 CEED_QFUNCTION(mass)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
21   CeedInt           num_comp = *(CeedInt *)ctx;
22   const CeedScalar *rho = in[0], *u = in[1];
23   CeedScalar       *v = out[0];
24 
25   for (CeedInt i = 0; i < Q; i++) {
26     for (CeedInt c = 0; c < num_comp; c++) v[i + c * Q] = rho[i] * c * u[i + c * Q];
27   }
28   return 0;
29 }
30