/[escript]/trunk/dudley/src/NodeFile_scatter.c
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Contents of /trunk/dudley/src/NodeFile_scatter.c

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Revision 3259 - (show annotations)
Mon Oct 11 01:48:14 2010 UTC (9 years, 1 month ago) by jfenwick
File MIME type: text/plain
File size: 2071 byte(s)
Merging dudley and scons updates from branches

1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2010 by University of Queensland
5 * Earth Systems Science Computational Center (ESSCC)
6 * http://www.uq.edu.au/esscc
7 *
8 * Primary Business: Queensland, Australia
9 * Licensed under the Open Software License version 3.0
10 * http://www.opensource.org/licenses/osl-3.0.php
11 *
12 *******************************************************/
13
14 /**************************************************************/
15
16 /* Dudley: Mesh: NodeFile */
17
18 /* scatters the NodeFile in into NodeFile out using index[0:in->numNodes-1]. */
19 /* index has to be between 0 and out->numNodes-1. */
20 /* coloring is choosen for the worst case */
21
22 /**************************************************************/
23
24 #include "NodeFile.h"
25
26 /**************************************************************/
27
28 void Dudley_NodeFile_scatterEntries(dim_t n, index_t * index, index_t min_index, index_t max_index,
29 index_t * Id_out, index_t * Id_in,
30 index_t * Tag_out, index_t * Tag_in,
31 index_t * globalDegreesOfFreedom_out, index_t * globalDegreesOfFreedom_in,
32 dim_t numDim, double *Coordinates_out, double *Coordinates_in)
33 {
34 dim_t i;
35 register index_t k;
36 const index_t range = max_index - min_index;
37 const size_t numDim_size = (size_t) numDim * sizeof(double);
38
39 #pragma omp parallel for private(i,k) schedule(static)
40 for (i = 0; i < n; i++)
41 {
42 k = index[i] - min_index;
43 if ((k >= 0) && (k < range))
44 {
45 Id_out[k] = Id_in[i];
46 Tag_out[k] = Tag_in[i];
47 globalDegreesOfFreedom_out[k] = globalDegreesOfFreedom_in[i];
48 memcpy(&(Coordinates_out[INDEX2(0, k, numDim)]), &(Coordinates_in[INDEX2(0, i, numDim)]), numDim_size);
49 }
50 }
51 }
52
53 void Dudley_NodeFile_scatter(index_t * index, Dudley_NodeFile * in, Dudley_NodeFile * out)
54 {
55 Dudley_NodeFile_scatterEntries(out->numNodes, index, 0, in->numNodes,
56 out->Id, in->Id,
57 out->Tag, in->Tag,
58 out->globalDegreesOfFreedom, in->globalDegreesOfFreedom,
59 out->numDim, out->Coordinates, in->Coordinates);
60 }

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