MPI Bandwidth on SGI Origin and Sun Shared Memory Machines
Results from Samson Cheung of NAS (Ames)
Origin 2000: mpirun -np 2 ./lbw -B -n 4000 -D
Total transfer time: 57.281 sec.
Transfer rate: 69.8 transfers/sec.
Message size: 1000000 bytes
Bandwidth: 139.664 10e+06 Bytes/sec
Sun E10000: tmrun -np 2 ./lbw -B -n 4000 -D
Total transfer time: 54.487 sec.
Transfer rate: 73.4 transfers/sec.
Message size: 1000000 bytes
Bandwidth: 146.825 10e+06 Bytes/sec