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 1D Poisson operator 10 **/ 11 12 #ifndef poisson1dbuild_h 13 #define poisson1dbuild_h 14 15 #include <ceed.h> 16 17 CEED_QFUNCTION(Poisson1DBuild)(void *ctx, const CeedInt Q, 18 const CeedScalar *const *in, 19 CeedScalar *const *out) { 20 // At every quadrature point, compute w/det(J).adj(J).adj(J)^T and store 21 // the symmetric part of the result. 22 23 // in[0] is Jacobians, size (Q) 24 // in[1] is quadrature weights, size (Q) 25 const CeedScalar *J = in[0], *w = in[1]; 26 27 // out[0] is qdata, size (Q) 28 CeedScalar *q_data = out[0]; 29 30 // Quadrature point loop 31 CeedPragmaSIMD 32 for (CeedInt i=0; i<Q; i++) { 33 q_data[i] = w[i] / J[i]; 34 } // End of Quadrature Point Loop 35 36 return CEED_ERROR_SUCCESS; 37 } 38 39 #endif // poisson1dbuild_h 40