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