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
|
#include "tools.h"
void Cpcsvabs1(N, X, IX, JX, descX, incX, Y, IY, JY, descY, incY)
int N;
float *X;
int IX;
int JX;
int *descX;
int incX;
float **Y;
int *IY;
int *JY;
int *descY;
int *incY;
/*
* Y(i) = abs( real(X(i)) ) + abs( imaginary(X(i)) )
*/
{
void pberror_();
void Cinfog2l();
int Cnumroc2();
void Cblacs_gridinfo();
int i, j, k, info, xrow, xcol;
int nprow, npcol, myrow, mycol;
float *x, *y;
Cblacs_gridinfo(descX[CTXT_], &nprow, &npcol, &myrow, &mycol);
Cinfog2l(IX, JX, descX, nprow, npcol, myrow, mycol, &i, &j, &xrow, &xcol);
x = &X[ 2*(i+j*descX[LLD_]) ];
*incY = 1;
if (incX == descX[M_]) /* X is a row vector (or degenerate) */
{
*IY = 0;
*JY = JX % descX[NB_];
Mdescset(descY, 1, N + *JY, 1, descX[NB_], xrow, xcol, descX[CTXT_], 1);
if (myrow == xrow)
{
j = Cnumroc2(N, JX, descX[NB_], mycol, descX[CSRC_], npcol);
if (mycol == xcol) i = *JY;
else i = 0;
k = j + i;
if (!k) k = 1;
Mmalloc(y, float, k, info, descX[CTXT_]);
*Y = y;
y += i;
for (i=0; i != j; i++)
y[i] = ABS( x[ i*2*descX[LLD_] ] ) + ABS( x[ i*2*descX[LLD_]+1 ] );
}
else
{
Mmalloc(*Y, float, 1, info, descX[CTXT_]);
}
}
else /* X is a column vector */
{
*IY = IX % descX[MB_];
*JY = 0;
if (mycol == xcol)
{
j = Cnumroc2(N, IX, descX[MB_], myrow, descX[RSRC_], nprow);
if (myrow == xrow) i = *IY;
else i = 0;
k = i + j;
if (!k) k = 1;
Mmalloc(y, float, k, info, descX[CTXT_]);
*Y = y;
y += i;
for (i=0; i != j; i++) y[i] = ABS( x[i*2] ) + ABS( x[i*2+1] );
}
else
{
Mmalloc(*Y, float, 1, info, descX[CTXT_]);
k = 1;
}
Mdescset(descY, N + *IY, 1, descX[MB_], 1, xrow, xcol, descX[CTXT_], k);
}
}
|
