Current LANL GSN Activities
Test Results!
- MPI-IO over GSN (uses disk drives)
- 1 box 4 processes local disk: 71 MB/s write, 105MB/s read
- 1 box 4 processes remote disk: 56.1MB/s write, 114 MB/s read
- 3 boxes 4 processes remote disk: 207 MB/s write, 249 MB/s read
- ( to compare, without GSN/BDS we get 50-70 MB/s max)
- TCP/IP (using O2Ks and netperf)
- 550 MB/s peak (avg of 350MB/s)
- LibST: 450- 680 MB/s
- ST sockets: 680 MB/s
- BDS: 530 MB/s
- Latency 4.5-6 usec for ST, 14 usec for MPI