Alsvinn  0.5.3
The fast FVM simulator with UQ support
number_of_segments.hpp
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1 /* Copyright (c) 2018 ETH Zurich, Kjetil Olsen Lye
2  * This program is free software: you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation, either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program. If not, see <http://www.gnu.org/licenses/>.
14  */
15 
16 #pragma once
17 #include "alsfvm/types.hpp"
18 
19 namespace alsfvm {
20 namespace mpi {
21 namespace cartesian {
39 inline int computeNumberOfSegments(int side, int dimensions,
40  ivec3 numberOfCellsPerDirection) {
41  int numberOfSegments = 1;
42 
43 
44  if ( side < 2) { // x side
45  if (dimensions == 1) {
46  numberOfSegments = 1;
47  } else if (dimensions == 2) {
48  numberOfSegments = numberOfCellsPerDirection.y;
49  } else {
50  numberOfSegments = numberOfCellsPerDirection.y * numberOfCellsPerDirection.z;
51  }
52  } else if (side < 4) { // y side
53  if (dimensions == 2) {
54  numberOfSegments = 1;
55  } else {
56  numberOfSegments = numberOfCellsPerDirection.z;
57  }
58 
59  } else { // z side
60  numberOfSegments = 1;
61  }
62 
63  return numberOfSegments;
64 }
65 
66 }
67 }
68 }
T z
Definition: vec3.hpp:28
Definition: vec3.hpp:25
int computeNumberOfSegments(int side, int dimensions, ivec3 numberOfCellsPerDirection)
Definition: number_of_segments.hpp:39
T y
Definition: vec3.hpp:27
Various utility functions to implement the tecno flux.
Definition: types.hpp:30