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 applying the 1D Poisson operator on a vector system with three components 10 **/ 11 #include <ceed/types.h> 12 13 CEED_QFUNCTION(Vector3Poisson1DApply)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) { 14 // in[0] is gradient u, shape [1, nc=3, Q] 15 // in[1] is quadrature data, size (Q) 16 const CeedScalar(*ug)[CEED_Q_VLA] = (const CeedScalar(*)[CEED_Q_VLA])in[0], (*q_data) = in[1]; 17 // out[0] is output to multiply against gradient v, shape [1, nc=3, Q] 18 CeedScalar(*vg)[CEED_Q_VLA] = (CeedScalar(*)[CEED_Q_VLA])out[0]; 19 20 const CeedInt num_comp = 3; 21 22 // Quadrature point loop 23 CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) { 24 for (CeedInt c = 0; c < num_comp; c++) { 25 vg[c][i] = ug[c][i] * q_data[i]; 26 } 27 } // End of Quadrature Point Loop 28 29 return CEED_ERROR_SUCCESS; 30 } 31