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--- cluster:79 [2009/08/21 19:48]
hmeij
+++ cluster:79 [2009/08/21 20:35]
hmeij
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 **[[cluster:0|Back]]**
+==== ====
 {{:cluster:sht.jpg|sharptail saltmarsh sparrow}}
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 As such, we will start to implement a soft policy that the Infiniband switch is dedicated to jobs that invoke MPI parallel programs.  That is queue "imw" on petaltail and swallowtail.
-=====  =====
+There are still some minor configurations that need to be implemented but you are invited to put cluster sharptail to work.
+This page will be updated with solutions to problems found or questions asked.
+All your tools will remain on **[[http://petaltail.wesleyan.edu|petaltail.wesleyan.edu]]**
+===== Questions =====
+**Are the LSF and Lava scheduler working togther?**
+No.  They are two physically and logically individual cluster.
+**How can i determine if my program or the program i am using will work on sharptail?**
+When programs compile on a certain host, they link themselves against system and sometimes custom libraries. If they are missing on another host, the program will not run.  To check, use 'ldd', if none are missing you are good to go.
+<code>
+[hmeij@sharptail ~]$ ldd /share/apps/python/2.6.1/bin/python
+        libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003679e00000)
+        libdl.so.2 => /lib64/libdl.so.2 (0x0000003679600000)
+        libutil.so.1 => /lib64/libutil.so.1 (0x0000003687000000)
+        libm.so.6 => /lib64/libm.so.6 (0x0000003679a00000)
+        libc.so.6 => /lib64/libc.so.6 (0x0000003679200000)
+        /lib64/ld-linux-x86-64.so.2 (0x0000003678e00000)
+</code>
+If one or more libraries are missing, you could run this command on petaltail or swallowtail, observe were the libraries are located, and if they exist on sharptail, add that path to LD_LIBRARY_PATH. Otherwise the programs need to be recompiled if they are supported on CentOS 5.3 x86_64.
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