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All:
I was wondering if people would mind sharing
their implementation on home directories
with regard to Oscar clusters with me. Most of my
users have become accustomed
to sitting down at
any of our workstations and being able to login automagically and
see the same home
directory courtesy of NFS and NIS.
But the default Oscar setup is pretty much self
contained with home system-unique
directories sitting physically on the head node and then NFS mounted to the compute
nodes. I like that idea since it compartmentalizes the machine and keeps the
network traffic between the nodes strictly at the business of cluster computing,
as opposed to trying to NFS mount external home directories onto each node.
In general, are most clusters setup so that users
are expected to copy over their
data, run it on the cluster, and then copy
their results back? I was toying with the
idea of mounting the external home directories onto
the head node in a different
location as a convenience to the users in copying the data over
I was also wondering if it is common to setup local
scratch directories on each node
so that applications can write directly to disk as
opposed to writing into the NFS
mounted home directory. I'm not sure that
everything we will be running is well
behaved enough to just use tmp space.
Thanks.
James Wulf
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