1*9ba83ac0SJeremy L Thompson // Copyright (c) 2017-2026, Lawrence Livermore National Security, LLC and other CEED contributors.
2a0154adeSJed Brown // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3a0154adeSJed Brown //
4a0154adeSJed Brown // SPDX-License-Identifier: BSD-2-Clause
5a0154adeSJed Brown //
6a0154adeSJed Brown // This file is part of CEED: http://github.com/ceed
7a0154adeSJed Brown
8a0154adeSJed Brown /**
9ea61e9acSJeremy L Thompson @brief Ceed QFunction for applying the mass matrix on a vector system with three components
10a0154adeSJed Brown **/
11c0b5abf0SJeremy L Thompson #include <ceed/types.h>
12c9c2c079SJeremy L Thompson
Vector3MassApply(void * ctx,const CeedInt Q,const CeedScalar * const * in,CeedScalar * const * out)132b730f8bSJeremy L Thompson CEED_QFUNCTION(Vector3MassApply)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
14a0154adeSJed Brown // in[0] is u, size (Q)
15a0154adeSJed Brown // in[1] is quadrature data, size (Q)
162b730f8bSJeremy L Thompson const CeedScalar(*u)[CEED_Q_VLA] = (const CeedScalar(*)[CEED_Q_VLA])in[0], *q_data = in[1];
17a0154adeSJed Brown // out[0] is v, size (Q)
18a0154adeSJed Brown CeedScalar(*v)[CEED_Q_VLA] = (CeedScalar(*)[CEED_Q_VLA])out[0];
19a0154adeSJed Brown
20a0154adeSJed Brown const CeedInt num_comp = 3;
21a0154adeSJed Brown
22a0154adeSJed Brown // Quadrature point loop
232b730f8bSJeremy L Thompson CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) {
24a0154adeSJed Brown for (CeedInt c = 0; c < num_comp; c++) {
25a0154adeSJed Brown v[c][i] = u[c][i] * q_data[i];
26a0154adeSJed Brown }
27a0154adeSJed Brown } // End of Quadrature Point Loop
28a0154adeSJed Brown return CEED_ERROR_SUCCESS;
29a0154adeSJed Brown }
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