1 // Copyright (c) 2017-2024, 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 3D mass matrix 10 **/ 11 12 #ifndef CEED_MASS3DBUILD_H 13 #define CEED_MASS3DBUILD_H 14 15 #include <ceed.h> 16 17 CEED_QFUNCTION(Mass3DBuild)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) { 18 // in[0] is Jacobians with shape [2, nc=3, Q] 19 // in[1] is quadrature weights, size (Q) 20 const CeedScalar(*J)[3][CEED_Q_VLA] = (const CeedScalar(*)[3][CEED_Q_VLA])in[0], *w = in[1]; 21 // out[0] is quadrature data, size (Q) 22 CeedScalar *q_data = out[0]; 23 24 // Quadrature point loop 25 CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) { 26 q_data[i] = (J[0][0][i] * (J[1][1][i] * J[2][2][i] - J[1][2][i] * J[2][1][i]) - J[0][1][i] * (J[1][0][i] * J[2][2][i] - J[1][2][i] * J[2][0][i]) + 27 J[0][2][i] * (J[1][0][i] * J[2][1][i] - J[1][1][i] * J[2][0][i])) * 28 w[i]; 29 } // End of Quadrature Point Loop 30 31 return CEED_ERROR_SUCCESS; 32 } 33 34 #endif // CEED_MASS3DBUILD_H 35