1 // Copyright (c) 2017-2026, 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 #include <ceed/types.h> 9 10 CEED_QFUNCTION(setup_mass)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) { 11 const CeedScalar *J = in[0], *weight = in[1]; 12 CeedScalar *rho = out[0]; 13 for (CeedInt i = 0; i < Q; i++) { 14 rho[i] = weight[i] * (J[i + Q * 0] * J[i + Q * 3] - J[i + Q * 1] * J[i + Q * 2]); 15 } 16 return 0; 17 } 18 19 CEED_QFUNCTION(apply)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) { 20 // in[0] is u, size (Q) 21 // in[1] is mass quadrature data, size (Q) 22 const CeedScalar *u = in[0], *qd_mass = in[1]; 23 24 // out[0] is output to multiply against v, size (Q) 25 CeedScalar *v = out[0]; 26 27 // Quadrature point loop 28 for (CeedInt i = 0; i < Q; i++) { 29 // Mass 30 v[i] = qd_mass[i] * u[i]; 31 } 32 33 return 0; 34 } 35