Beowulf Aug2010/Installation/Test Applicationer

<accesscontrol>teacher</accesscontrol>

Brug 100% CPU

Skal måske startes flere gange for at bruge begge kerne.

#!/bin/bash

while : ; do
true
done

Teste MPI båndbrede

Testen er lavet på vores Dell PowerEdge 1750 med onboard netkort i en 3550 100mbit/s switch

Hello from 0 of 2
Timer accuracy of ~0.953674 usecs

Hello from 1 of 2
       8 bytes took       331 usec (   0.048 MB/sec)
      16 bytes took       206 usec (   0.155 MB/sec)
      32 bytes took       213 usec (   0.301 MB/sec)
      64 bytes took       229 usec (   0.559 MB/sec)
     128 bytes took       266 usec (   0.962 MB/sec)
     256 bytes took       334 usec (   1.533 MB/sec)
     512 bytes took       472 usec (   2.170 MB/sec)
    1024 bytes took       758 usec (   2.701 MB/sec)
    2048 bytes took      1112 usec (   3.683 MB/sec)
    4096 bytes took      1402 usec (   5.843 MB/sec)
    8192 bytes took      2138 usec (   7.664 MB/sec)
   16384 bytes took      3555 usec (   9.218 MB/sec)
   32768 bytes took      6403 usec (  10.235 MB/sec)
   65536 bytes took     12508 usec (  10.479 MB/sec)
  131072 bytes took     23635 usec (  11.091 MB/sec)
  262144 bytes took     46029 usec (  11.390 MB/sec)
  524288 bytes took     90590 usec (  11.575 MB/sec)
 1048576 bytes took    179719 usec (  11.669 MB/sec)

  Asynchronous ping-pong

       8 bytes took       212 usec (   0.075 MB/sec)
      16 bytes took       205 usec (   0.156 MB/sec)
      32 bytes took       211 usec (   0.303 MB/sec)
      64 bytes took       237 usec (   0.540 MB/sec)
     128 bytes took       264 usec (   0.969 MB/sec)
     256 bytes took       336 usec (   1.524 MB/sec)
     512 bytes took       470 usec (   2.179 MB/sec)
    1024 bytes took       753 usec (   2.720 MB/sec)
    2048 bytes took      1076 usec (   3.807 MB/sec)
    4096 bytes took      1407 usec (   5.822 MB/sec)
    8192 bytes took      2141 usec (   7.653 MB/sec)
   16384 bytes took      3661 usec (   8.950 MB/sec)
   32768 bytes took      6428 usec (  10.195 MB/sec)
   65536 bytes took     12507 usec (  10.480 MB/sec)
  131072 bytes took     23708 usec (  11.057 MB/sec)
  262144 bytes took     46073 usec (  11.380 MB/sec)
  524288 bytes took     90696 usec (  11.561 MB/sec)
 1048576 bytes took    179756 usec (  11.667 MB/sec)

  Bi-directional asynchronous ping-pong

       8 bytes took       197 usec (   0.081 MB/sec)
      16 bytes took       189 usec (   0.169 MB/sec)
      32 bytes took       196 usec (   0.327 MB/sec)
      64 bytes took       200 usec (   0.640 MB/sec)
     128 bytes took       230 usec (   1.114 MB/sec)
     256 bytes took       324 usec (   1.580 MB/sec)
     512 bytes took       454 usec (   2.256 MB/sec)
    1024 bytes took       735 usec (   2.786 MB/sec)
    2048 bytes took      1075 usec (   3.810 MB/sec)
    4096 bytes took      1421 usec (   5.765 MB/sec)
    8192 bytes took      2187 usec (   7.491 MB/sec)
   16384 bytes took      3630 usec (   9.027 MB/sec)
   32768 bytes took      6534 usec (  10.030 MB/sec)
   65536 bytes took     13344 usec (   9.823 MB/sec)
  131072 bytes took     25400 usec (  10.321 MB/sec)
  262144 bytes took     49689 usec (  10.551 MB/sec)
  524288 bytes took    124407 usec (   8.429 MB/sec)
 1048576 bytes took    261184 usec (   8.029 MB/sec)

 Max rate = 11.669048 MB/sec  Min latency = 94.413757 usec

Og de adskiller sig jo ikke det store fra dem i Test Clusteret