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 applying the 1D Poisson operator 10 on a vector system with three components 11 **/ 12 13 #ifndef vectorpoisson1dapply_h 14 #define vectorpoisson1dapply_h 15 16 #include <ceed.h> 17 18 CEED_QFUNCTION(Vector3Poisson1DApply)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) { 19 // *INDENT-OFF* 20 // in[0] is gradient u, shape [1, nc=3, Q] 21 // in[1] is quadrature data, size (Q) 22 const CeedScalar(*ug)[CEED_Q_VLA] = (const CeedScalar(*)[CEED_Q_VLA])in[0], (*q_data) = in[1]; 23 // out[0] is output to multiply against gradient v, shape [1, nc=3, Q] 24 CeedScalar(*vg)[CEED_Q_VLA] = (CeedScalar(*)[CEED_Q_VLA])out[0]; 25 // *INDENT-ON* 26 27 const CeedInt num_comp = 3; 28 29 // Quadrature point loop 30 CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) { 31 for (CeedInt c = 0; c < num_comp; c++) { 32 vg[c][i] = ug[c][i] * q_data[i]; 33 } 34 } // End of Quadrature Point Loop 35 36 return CEED_ERROR_SUCCESS; 37 } 38 39 #endif // vectorpoisson1dapply_h 40