Dear LAM list.
I am trying to set up R SNOW on Rocks cluster with LAM/MPI installed.
cl <- makeCluster(2, type = "MPI") was the R command I used to create a
cluster. When /opt/lam/gnu/etc/lam-bhost.def contains only "localhost",
everything is fine. But once I add compute nodes to that file, it just
would return back to R prompt.
I can see lamboot successfully and lamd running on the compute nodes
when I run this command. I wonder whether there is something related to
the lam's configuration. Would the firewall on compute nodes block the
further communication. I think lamboot use ssh, but later communication
may not be the ssh traffic.
Do I need to have lam-bhost.def on all the compute nodes with the same
entries?
Thank you for your help.
Chuming
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