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 /** 9 @brief Ceed QFunction for building the geometric data for the 2D mass matrix 10 **/ 11 #include <ceed/types.h> 12 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 25 return CEED_ERROR_SUCCESS; 26 } 27