I ran the "random communication benchmark" example on one whole rack:
Size of each message |
Number of send and receive |
Number of supersteps |
Job runtime |
10 kb |
5 |
16 |
13.679 seconds |
10 kb |
5 |
32 |
23.427 seconds |
10 kb |
5 |
64 |
46.398 seconds |
10 kb |
5 |
128 |
86.476 seconds |
10 kb |
5 |
256 |
171.511 seconds |
10 kb |
5 |
512 |
339.608 seconds |