HPF: Programming Linux Clusters the Easy Way
Table 1. Timing Comparison
| Program |
Parameters |
Purpose |
Serial |
P=1 |
P=2 |
P=3 |
P=4 |
| matvec4.hpf |
512*512 |
|
0.125 |
0.14 |
0.067 |
0.036 |
0.029 |
| trans5.hpf |
512,5 |
|
0.25 |
0.37 |
0.18 |
0.14 |
0.068 |
| jacobi2.hpf |
512 |
Iterative |
2.44 |
3.2 |
1.9 |
1.0 |
0.81 |
| gauss77m.hpf |
512 |
Direct |
40.4 |
30.8 |
17.7 |
13.1 |
15.0 |
| gauss90.hpf |
512 |
Fortran90 version |
40.2 |
30.3 |
17.5 |
12.1 |
14.6 |
| shall90.hpf |
512,5 |
Shallow Water Equations |
13.4 |
13.3 |
8.7 |
5.6 |
3.0 |
| filter2.hpf |
500,500,11 |
Image Processing |
7.3 |
7.3 |
4.2 |
3.3 |
2.5 |
| sim2.hpf |
20,5.0,0.5 |
Real Time Simulation |
17.3 |
8.8 |
5.7 |
4.6 |