RSH scaling problems...
Mike S Galicki
mgalicki at us.ibm.com
Sun Dec 15 17:05:57 PST 2002
Can't seem to get rsh to scale past like 63 nodes with mpi jobs. SSH
scales much higher, but the performance is a lot worse in customer
benchmark tests. I'm guessing that I'm running out of pty's or tty's or
something on the headnode. Anyone have some ideas? I believe the default
pty's in 2.4.20 is 1024, but when I list /dev/pty I only see 256 entries.
MAKEDEV -m 1024 didn't seem to do anything past 256.
Linux Services Team
San Francisco, CA
Internet ID: mgalicki at us.ibm.com
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