rb7.F Program
Description
File Name:rb7.F
Description:
The data access behaviour of rb7.F is equal to the
behaviour of rb6.F. Since
rb6.F suffers from register dependencies the
innermost loops were unrolled to enable better
instruction scheduling.
Comment:
The cache behaviour should be equivalent too that
of rb6.F.
Results:
Memory access behaviour
| Size |
MBytes
/sec |
% of all access which go
into |
| ± |
1. Level |
2. Level |
3. Level |
Memory |
|
2 sweeps performed together |
| 16 |
1598.0 |
19.7 |
80.3 |
0.0 |
0.0 |
0.0 |
| 32 |
1674.4 |
20.9 |
77.8 |
1.2 |
0.0 |
0.0 |
| 64 |
1605.4 |
20.9 |
66.8 |
12.1 |
0.2 |
0.0 |
| 128 |
844.3 |
21.1 |
61.5 |
14.6 |
2.7 |
0.0 |
| 256 |
1219.6 |
21.3 |
32.3 |
43.7 |
2.8 |
0.0 |
| 512 |
699.0 |
21.2 |
32.4 |
43.1 |
1.5 |
1.8 |
| 1024 |
611.2 |
21.1 |
30.8 |
42.2 |
4.1 |
1.8 |
| 2048 |
378.0 |
20.9 |
34.6 |
30.5 |
12.2 |
1.8 |
|
3 sweeps performed together |
| 16 |
1589.8 |
19.9 |
80.1 |
0.0 |
0.0 |
0.0 |
| 32 |
1668.6 |
20.8 |
66.5 |
12.7 |
0.0 |
0.0 |
| 64 |
1605.2 |
20.8 |
66.9 |
12.1 |
0.1 |
0.0 |
| 128 |
851.1 |
21.1 |
61.5 |
14.6 |
2.7 |
0.0 |
| 256 |
1210.4 |
21.4 |
32.1 |
43.7 |
2.8 |
0.0 |
| 512 |
720.8 |
21.3 |
32.2 |
43.1 |
1.5 |
1.8 |
| 1024 |
612.4 |
21.1 |
30.7 |
42.2 |
4.1 |
1.8 |
| 2048 |
383.3 |
21.0 |
34.6 |
30.5 |
12.2 |
1.8 |
Runtime behaviour
| Size |
MFlops
/sec |
% of cycles used for |
| ± |
Base |
Exec |
Cache |
DTB |
Branch |
R dep |
Nops |
| 2 sweeps performed
together |
| 16 |
355.3 |
7.5 |
108.7 |
64.6 |
0.3 |
4.6 |
5.1 |
19.6 |
7.0 |
| 32 |
378.0 |
7.9 |
108.2 |
65.6 |
0.6 |
5.2 |
6.3 |
15.8 |
6.8 |
| 64 |
362.5 |
7.2 |
107.4 |
66.7 |
0.8 |
4.1 |
7.3 |
15.7 |
5.6 |
| 128 |
191.1 |
9.7 |
100.2 |
34.9 |
8.6 |
2.2 |
3.6 |
40.2 |
1.0 |
| 256 |
276.7 |
5.0 |
105.4 |
51.2 |
19.5 |
5.5 |
6.2 |
11.3 |
6.7 |
| 512 |
158.3 |
3.8 |
102.5 |
29.8 |
51.4 |
3.5 |
3.2 |
6.9 |
3.9 |
| 1024 |
138.3 |
3.9 |
101.9 |
25.2 |
51.0 |
11.1 |
2.3 |
5.9 |
2.5 |
| 2048 |
85.4 |
3.1 |
100.1 |
16.7 |
56.1 |
3.7 |
1.5 |
17.7 |
1.3 |
| 3 sweeps performed
together |
| 16 |
354.2 |
7.0 |
108.7 |
63.6 |
0.3 |
4.2 |
5.8 |
21.0 |
6.8 |
| 32 |
376.0 |
7.1 |
108.9 |
67.6 |
0.1 |
4.6 |
6.2 |
16.3 |
7.0 |
| 64 |
362.1 |
7.4 |
107.8 |
67.0 |
0.6 |
4.0 |
7.4 |
15.8 |
5.6 |
| 128 |
192.7 |
9.6 |
100.2 |
34.9 |
9.1 |
1.9 |
3.5 |
40.2 |
1.0 |
| 256 |
275.0 |
5.1 |
105.5 |
51.5 |
19.2 |
5.6 |
5.8 |
11.5 |
6.8 |
| 512 |
163.5 |
3.1 |
102.6 |
29.4 |
51.7 |
4.6 |
2.7 |
7.0 |
4.1 |
| 1024 |
138.7 |
3.9 |
101.9 |
25.5 |
51.5 |
10.2 |
2.4 |
5.9 |
2.5 |
| 2048 |
86.6 |
3.0 |
100.1 |
16.9 |
55.7 |
3.7 |
1.6 |
17.9 |
1.3 |
Table
explanation
|
