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 CEED_QFUNCTION(setup)(void *ctx, const CeedInt Q, 9 const CeedScalar *const *in, 10 CeedScalar *const *out) { 11 const CeedScalar *weight = in[0], *J = 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(mass)(void *ctx, const CeedInt Q, const CeedScalar *const *in, 20 CeedScalar *const *out) { 21 const CeedScalar *rho = in[0], *u = in[1]; 22 CeedScalar *v = out[0]; 23 for (CeedInt i=0; i<Q; i++) { 24 for (CeedInt c=0; c<2; c++) 25 v[i+Q*c] = rho[i] * u[i+Q*(c ? 0 : 1)]; 26 } 27 return 0; 28 } 29