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 building the geometric data for the 2D mass matrix
10 **/
11 #include <ceed/types.h>
12
Mass2DBuild(void * ctx,const CeedInt Q,const CeedScalar * const * in,CeedScalar * const * out)13 CEED_QFUNCTION(Mass2DBuild)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
14 // in[0] is Jacobians with shape [2, nc=2, Q]
15 // in[1] is quadrature weights, size (Q)
16 const CeedScalar(*J)[2][CEED_Q_VLA] = (const CeedScalar(*)[2][CEED_Q_VLA])in[0], *w = in[1];
17 // out[0] is quadrature data, size (Q)
18 CeedScalar *q_data = out[0];
19
20 // Quadrature point loop
21 CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) {
22 q_data[i] = (J[0][0][i] * J[1][1][i] - J[0][1][i] * J[1][0][i]) * w[i];
23 } // End of Quadrature Point Loop
24 return CEED_ERROR_SUCCESS;
25 }
26