1 // Copyright (c) 2017-2022, 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 mass3dbuild_h 13 #define mass3dbuild_h 14 15 CEED_QFUNCTION(Mass3DBuild)(void *ctx, const CeedInt Q, 16 const CeedScalar *const *in, CeedScalar *const *out) { 17 // *INDENT-OFF* 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], 21 *w = in[1]; 22 // out[0] is quadrature data, size (Q) 23 CeedScalar *q_data = out[0]; 24 // *INDENT-ON* 25 26 // Quadrature point loop 27 CeedPragmaSIMD 28 for (CeedInt i=0; i<Q; i++) { 29 q_data[i] = (J[0][0][i]*(J[1][1][i]*J[2][2][i] - J[1][2][i]*J[2][1][i]) - 30 J[0][1][i]*(J[1][0][i]*J[2][2][i] - J[1][2][i]*J[2][0][i]) + 31 J[0][2][i]*(J[1][0][i]*J[2][1][i] - J[1][1][i]*J[2][0][i])) * w[i]; 32 } // End of Quadrature Point Loop 33 34 return CEED_ERROR_SUCCESS; 35 } 36 37 #endif // mass3dbuild_h 38