1 // Copyright (c) 2017-2026, 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 /**
9 @brief Ceed QFunction for applying the mass matrix on a vector system with three components
10 **/
11 #include <ceed/types.h>
12
Vector3MassApply(void * ctx,const CeedInt Q,const CeedScalar * const * in,CeedScalar * const * out)13 CEED_QFUNCTION(Vector3MassApply)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
14 // in[0] is u, size (Q)
15 // in[1] is quadrature data, size (Q)
16 const CeedScalar(*u)[CEED_Q_VLA] = (const CeedScalar(*)[CEED_Q_VLA])in[0], *q_data = in[1];
17 // out[0] is v, size (Q)
18 CeedScalar(*v)[CEED_Q_VLA] = (CeedScalar(*)[CEED_Q_VLA])out[0];
19
20 const CeedInt num_comp = 3;
21
22 // Quadrature point loop
23 CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) {
24 for (CeedInt c = 0; c < num_comp; c++) {
25 v[c][i] = u[c][i] * q_data[i];
26 }
27 } // End of Quadrature Point Loop
28 return CEED_ERROR_SUCCESS;
29 }
30