xref: /libCEED/include/ceed/jit-source/gallery/ceed-scale.h (revision f6af633f48f40461e0ac4411cacdc7e4180f53e5)
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  Scaling QFunction that scales inputs
10 **/
11 
12 #ifndef scale_h
13 #define scale_h
14 
15 CEED_QFUNCTION(Scale)(void *ctx, const CeedInt Q, const CeedScalar *const *in,
16                       CeedScalar *const *out) {
17   // Ctx holds field size
18   const CeedInt size = *(CeedInt *)ctx;
19 
20   // in[0] is input, size (Q*size)
21   // in[1] is scaling factor, size (Q*size)
22   const CeedScalar *input = in[0];
23   const CeedScalar *scale = in[1];
24   // out[0] is output, size (Q*size)
25   CeedScalar *output = out[0];
26 
27   // Quadrature point loop
28   CeedPragmaSIMD
29   for (CeedInt i=0; i<Q*size; i++) {
30     output[i] = input[i] * scale[i];
31   } // End of Quadrature Point Loop
32   return 0;
33 }
34 
35 #endif // scale_h
36