xref: /libCEED/include/ceed/jit-source/gallery/ceed-massapply.h (revision a0154adecfab8547cdc0febbbf40ac009dbe9d1d)
1*a0154adeSJed Brown // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors.
2*a0154adeSJed Brown // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3*a0154adeSJed Brown //
4*a0154adeSJed Brown // SPDX-License-Identifier: BSD-2-Clause
5*a0154adeSJed Brown //
6*a0154adeSJed Brown // This file is part of CEED:  http://github.com/ceed
7*a0154adeSJed Brown 
8*a0154adeSJed Brown /**
9*a0154adeSJed Brown   @brief Ceed QFunction for applying the mass matrix
10*a0154adeSJed Brown **/
11*a0154adeSJed Brown 
12*a0154adeSJed Brown #ifndef massapply_h
13*a0154adeSJed Brown #define massapply_h
14*a0154adeSJed Brown 
15*a0154adeSJed Brown CEED_QFUNCTION(MassApply)(void *ctx, const CeedInt Q,
16*a0154adeSJed Brown                           const CeedScalar *const *in, CeedScalar *const *out) {
17*a0154adeSJed Brown   // in[0] is u, size (Q)
18*a0154adeSJed Brown   // in[1] is quadrature data, size (Q)
19*a0154adeSJed Brown   const CeedScalar *u = in[0], *q_data = in[1];
20*a0154adeSJed Brown   // out[0] is v, size (Q)
21*a0154adeSJed Brown   CeedScalar *v = out[0];
22*a0154adeSJed Brown 
23*a0154adeSJed Brown   // Quadrature point loop
24*a0154adeSJed Brown   CeedPragmaSIMD
25*a0154adeSJed Brown   for (CeedInt i=0; i<Q; i++) {
26*a0154adeSJed Brown     v[i] = u[i] * q_data[i];
27*a0154adeSJed Brown   } // End of Quadrature Point Loop
28*a0154adeSJed Brown 
29*a0154adeSJed Brown   return CEED_ERROR_SUCCESS;
30*a0154adeSJed Brown }
31*a0154adeSJed Brown 
32*a0154adeSJed Brown #endif // massapply_h
33