xref: /libCEED/include/ceed/jit-source/gallery/ceed-scale.h (revision c0b5abf0f23b15c4f0ada76f8abe9f8d2b6fa247)
15aed82e4SJeremy L Thompson // Copyright (c) 2017-2024, Lawrence Livermore National Security, LLC and other CEED contributors.
2a0154adeSJed Brown // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3a0154adeSJed Brown //
4a0154adeSJed Brown // SPDX-License-Identifier: BSD-2-Clause
5a0154adeSJed Brown //
6a0154adeSJed Brown // This file is part of CEED:  http://github.com/ceed
7a0154adeSJed Brown 
8a0154adeSJed Brown /**
9a0154adeSJed Brown   @brief  Scaling QFunction that scales inputs
10a0154adeSJed Brown **/
11a0154adeSJed Brown 
12*c0b5abf0SJeremy L Thompson #include <ceed/types.h>
13c9c2c079SJeremy L Thompson 
142b730f8bSJeremy L Thompson CEED_QFUNCTION(Scale)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
15a0154adeSJed Brown   // Ctx holds field size
16a0154adeSJed Brown   const CeedInt size = *(CeedInt *)ctx;
17a0154adeSJed Brown 
18a0154adeSJed Brown   // in[0] is input, size (Q*size)
19a0154adeSJed Brown   // in[1] is scaling factor, size (Q*size)
20a0154adeSJed Brown   const CeedScalar *input = in[0];
21a0154adeSJed Brown   const CeedScalar *scale = in[1];
22a0154adeSJed Brown   // out[0] is output, size (Q*size)
23a0154adeSJed Brown   CeedScalar *output = out[0];
24a0154adeSJed Brown 
25a0154adeSJed Brown   // Quadrature point loop
262b730f8bSJeremy L Thompson   CeedPragmaSIMD for (CeedInt i = 0; i < Q * size; i++) { output[i] = input[i] * scale[i]; }  // End of Quadrature Point Loop
27a0154adeSJed Brown   return 0;
28a0154adeSJed Brown }
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