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
111
112
|
/*
* MLICTS.C - test vector ICCG solver
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "pml.h"
#define KM 4
#define LM 3
#define KXL 24 /* 2*KM*LM */
#define KL 12 /* KM*LM */
#define EPS 1.0e-6
#define KS 4
#define MAXIT 100
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* MAIN - solve a Laplace equation */
int main()
{int i, j, k;
REAL ret;
REAL a0[KXL], a1[KXL], b0[KXL], b1[KXL], bm1[KXL], x[KXL], y[KXL];
for (i = 0; i < KXL; i++)
{a0[i] = 0.0;
a1[i] = 0.0;
b0[i] = 0.0;
b1[i] = 0.0;
bm1[i] = 0.0;
x[i] = 0.0;
y[i] = 0.0;};
for (i = KM; i < 2*KM; i++)
{a0[i] = 2.0;
a1[i] = -1.0;
b0[i] = 0.0;
b1[i] = 0.0;
bm1[i] = 0.0;};
a1[2*KM-1] = 0.0;
for (i = 0; i < KM; i++)
{k = KM + i;
y[k] = (REAL) (i+1);};
printf("\nProblem y :\n");
for (j = 0; j < LM; j++)
{printf("\nRow #%d: \n", j+1);
for (i = 0; i < KM; i++)
{k = j*KM + i;
printf(" y(%2d, %2d) = %11.3e ", j+1, i+1, y[k]);};};
printf("\n");
ret = _PM_iccg_v(KM, LM, EPS, KS, MAXIT, a0, a1, b0, b1, bm1, x, y);
printf("\nSolution x (should be (4, 7, 8, 6)) : %11.3e\n", ret);
for (j = 0; j < LM; j++)
{printf("\nRow #%d: \n", j+1);
for (i = 0; i < KM; i++)
{k = j*KM + i;
printf(" x(%2d, %2d) = %11.3e ", j+1, i+1, x[k]);};};
printf("\n\n");
for (i = 0; i < KXL; i++)
{a0[i] = 0.0;
a1[i] = 0.0;
b0[i] = 0.0;
b1[i] = 0.0;
bm1[i] = 0.0;
x[i] = 0.0;
y[i] = 0.0;};
for (i = 1; i < KXL; i += LM)
{a0[i] = 2.0;
a1[i] = 0.0;
b0[i] = -1.0;
b1[i] = 0.0;
bm1[i] = 0.0;};
for (k = 1, i = 1; i < KXL; i += LM, k++)
y[i] = (REAL) k;
printf("\nProblem y :\n");
for (j = 0; j < KM; j++)
{printf("\nRow #%d: \n", j+1);
for (i = 0; i < LM; i++)
{k = j*LM + i;
printf(" y(%2d, %2d) = %11.3e ", j+1, i+1, y[k]);};};
printf("\n");
ret = _PM_iccg_v(LM, KM, EPS, KS, MAXIT, a0, a1, b0, b1, bm1, x, y);
printf("\nSolution x (should be (4, 7, 8, 6)) : %11.3e\n", ret);
for (j = 0; j < KM; j++)
{printf("\nRow #%d: \n", j+1);
for (i = 0; i < LM; i++)
{k = j*LM + i;
printf(" x(%2d, %2d) = %11.3e ", j+1, i+1, x[k]);};};
printf("\n\n");
return(0);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
|
