Alan Ward wrote: > > Good day. > > I have been reading the ongoing discussion on network usage with some > interest, mainly because in all (admittedly very small, 4 to 8 node) > clusters we have set up so far, we have always gone with doubling the > network. Nowadays we mostly run a 100 MBit/s "el cheapo" FastEthernet > for control, NFS and monitoring, while the faster Gigabit is exclusively > for MPI. Applications are CFD, with various levels of granularity. > > Anybody care to comment? > > -Alan
My new cluster, which is still in labor, will have InfiniBand for MPI, and we have 10 Gb ethernet switches for management/NFS, etc. The nodes only have 1 Gb ethernet, so it will be effectively a 1 Gb network. I'm also curious as to whether the dual networks are overkill, and if using a slower network for I/O will cause the system to be slower than doing all traffic over IB, since I/O will be slower and cause the nodes to wait longer for these ops to finish. -- Prentice _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
