/[escript]/trunk/paso/src/Pattern_getSubpattern.c
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Annotation of /trunk/paso/src/Pattern_getSubpattern.c

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Revision 1811 - (hide annotations)
Thu Sep 25 23:11:13 2008 UTC (11 years ago) by ksteube
File MIME type: text/plain
File size: 2992 byte(s)
Copyright updated in all files

1 ksteube 1315
2     /*******************************************************
3 ksteube 1811 *
4     * Copyright (c) 2003-2008 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 ksteube 1315
14 ksteube 1811
15 ksteube 1315 /**************************************************************/
16    
17     /* Paso: PatternPattern */
18    
19     /**************************************************************/
20    
21     /* Copyrights by ACcESS Australia 2003, 2004, 2005 */
22     /* Author: gross@access.edu.au */
23    
24     /**************************************************************/
25    
26     #include "Paso.h"
27     #include "Pattern.h"
28     #include "PasoUtil.h"
29    
30     /**************************************************************/
31    
32     /* creates Pattern */
33    
34     Paso_Pattern* Paso_Pattern_getSubpattern(Paso_Pattern* pattern, \
35     int newNumRows, int newNumCols, index_t* row_list,index_t* new_col_index) {
36     index_t index_offset=(pattern->type & PATTERN_FORMAT_OFFSET1 ? 1:0);
37     Paso_Pattern*out=NULL;
38     index_t *ptr=NULL,*index=NULL,k,j,subpattern_row,tmp;
39     dim_t i;
40     Paso_resetError();
41    
42     ptr=MEMALLOC(newNumRows+1,index_t);
43     if (! Paso_checkPtr(ptr)) {
44     #pragma omp parallel
45     {
46     #pragma omp for private(i) schedule(static)
47     for (i=0;i<newNumRows+1;++i) ptr[i]=0;
48    
49     /* find the number column entries in each row */
50     #pragma omp for private(i,k,j,subpattern_row) schedule(static)
51     for (i=0;i<newNumRows;++i) {
52     j=0;
53     subpattern_row=row_list[i];
54     #pragma ivdep
55     for (k=pattern->ptr[subpattern_row]-index_offset;k<pattern->ptr[subpattern_row+1]-index_offset;++k)
56     if (new_col_index[pattern->index[k]-index_offset]>-1) j++;
57     ptr[i]=j;
58     }
59     }
60     /* accummulate ptr */
61     ptr[newNumRows]=Paso_Util_cumsum(newNumRows,ptr);
62     index=MEMALLOC(ptr[newNumRows],index_t);
63     if (Paso_checkPtr(index)) {
64     MEMFREE(ptr);
65     } else {
66     /* find the number column entries in each row */
67     #pragma omp parallel for private(i,k,j,subpattern_row,tmp) schedule(static)
68     for (i=0;i<newNumRows;++i) {
69     j=ptr[i];
70     subpattern_row=row_list[i];
71     #pragma ivdep
72     for (k=pattern->ptr[subpattern_row]-index_offset;k<pattern->ptr[subpattern_row+1]-index_offset;++k) {
73     tmp=new_col_index[pattern->index[k]-index_offset];
74     if (tmp>-1) {
75     index[j]=tmp;
76     ++j;
77     }
78     }
79     }
80     /* create return value */
81 gross 1736 out=Paso_Pattern_alloc(pattern->type,pattern->input_block_size,pattern->output_block_size,newNumRows,newNumCols,ptr,index);
82 ksteube 1315 if (! Paso_noError()) {
83     MEMFREE(index);
84     MEMFREE(ptr);
85     }
86     }
87     }
88     return out;
89     }

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