On Wed, Jul 13, 2005 at 06:53:50PM -0400, Sumeet Kapur wrote:
>I don't know if this issue belong here.
it's more a general networking problem I think.
>Also to make nfs work I changed the entry in /etc/modules.conf
>I put
>alias eth1 bcm5700
>options eth1 mtu=9000
>instead of
>alias eth1 tg3
try using the default MTU on both cards - just leave it unspecified and
it'll be 1500. some cards and switched and drivers deal badly with
non-default MTUs.
test your networking with something like netpipe -
http://www.scl.ameslab.gov/netpipe/
once that's all ok and getting <64 micro-second latency and 900Mbit-ish
bandwidth with no hangs, then try your MPI app again.
cheers,
robin
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