1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
#include "tools.h"
/* ---------------------------------------------------------------------
*
* -- PBLAS routine (version 1.5) --
* University of Tennessee, Knoxville, Oak Ridge National Laboratory,
* and University of California, Berkeley.
* March 17, 1995
*
* ---------------------------------------------------------------------
*/
char * ptop( op, scope, top )
/*
* .. Scalar Arguments ..
*/
char * op, * scope, * top;
{
/*
* Purpose
* =======
*
* ptop get or set the row, column or all broadcast or combine
* topologies.
*
* =====================================================================
*
* .. Local Scalars ..
*/
static char rowbtop = ' '; /* Default broadcast topologies */
static char colbtop = ' ';
static char allbtop = ' ';
static char rowctop = ' '; /* Default combine topologies */
static char colctop = ' ';
static char allctop = ' ';
if( *op == 'B' )
{
if( *top == '!' )
{
if( *scope == 'R' )
{
return &rowbtop;
}
else if( *scope == 'C' )
{
return &colbtop;
}
else
{
return &allbtop;
}
}
else
{
if( *scope == 'R' )
{
rowbtop = *top;
return &rowbtop;
}
else if( *scope == 'C' )
{
colbtop = *top;
return &colbtop;
}
else
{
allbtop = *top;
return &allbtop;
}
}
}
else
{
if( *top == '!' )
{
if( *scope == 'R' )
{
return &rowctop;
}
else if( *scope == 'C' )
{
return &colctop;
}
else
{
return &allctop;
}
}
else
{
if( *scope == 'R' )
{
rowctop = *top;
return &rowctop;
}
else if( *scope == 'C' )
{
colctop = *top;
return &colctop;
}
else
{
allctop = *top;
return &allctop;
}
}
}
}
|
