Changes between Version 12 and Version 13 of Beehive

Timestamp:

05/22/09 22:11:49 (17 years ago)

Author:

gbryan@…

Comment:

--

Beehive

@@ -113 +113 @@
 ==== Using IDL on the cluster ====
 
-[somebody add this please...]
+The beehive cluster nodes are behind a NAT so to run IDL you need to create an SSH tunnel through the master node.  Here is how it works:
+
+First, set up passwordless sshkey access on the cluster.  See this link for an example of how to do it: http://homepage.mac.com/wyuen/hpc/Passwordless_SSH.html
+
+Second, create a file called .flexlmrc in your home directory that reads:
+
+{{{
+IDL_LMGRD_LICENSE_FILE=1700@localhost:/usr/local/rsi/idl_6.2/../license/license.dat
+}}}
+
+Finally, you are set to submit a PBS job that runs IDL.  The one thing you must include is a line which generates the ssh tunnel (and then puts itself into the background so the tunnel stays around).  Here is an example script:
+
+{{{
+#!/bin/sh
+### Job name
+#PBS -N idl_test
+### Declare job non-rerunable
+#PBS -r n
+### Output files
+#PBS -e output_simple.err
+#PBS -o output_simple.log
+### Mail to user
+#PBS -m bae
+### Give email address
+#PBS -M your_email_address@astro.columbia.edu
+### Queue name (small, medium, long, verylong)
+#PBS -q medium
+### Number of nodes and other properties (big memory)
+#PBS -l nodes=1:bigmem
+
+cd $PBS_O_WORKDIR
+
+echo Running on host `hostname`
+echo Time is `date`
+echo Directory is `pwd`
+
+# start the secure tunnel to the master (passwordless ssh must be setup)
+
+ssh -N -L 1700:neptune.astro.columbia.edu:1700 -L 1705:neptune.astro.columbia.edu:1705 master &
+
+# now we can run the idl job, replace my_idljob with your own idl script
+
+/usr/local/bin/idl my_idljob
+
+# clean up secure tunnel
+
+kill %1
+}}}
 
 == Administrator Guide ==