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 CEED_QFUNCTION(Vector3Poisson1DApply)(void *ctx, const CeedInt Q, 17 const CeedScalar *const *in, 18 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], 23 (*q_data) = in[1]; 24 // out[0] is output to multiply against gradient v, shape [1, nc=3, Q] 25 CeedScalar (*vg)[CEED_Q_VLA] = (CeedScalar(*)[CEED_Q_VLA])out[0]; 26 // *INDENT-ON* 27 28 const CeedInt num_comp = 3; 29 30 // Quadrature point loop 31 CeedPragmaSIMD 32 for (CeedInt i=0; i<Q; i++) { 33 for (CeedInt c=0; c<num_comp; c++) { 34 vg[c][i] = ug[c][i] * q_data[i]; 35 } 36 } // End of Quadrature Point Loop 37 38 return CEED_ERROR_SUCCESS; 39 } 40 41 #endif // vectorpoisson1dapply_h 42