[GE users] A little help with SGE commands

Janice Critchlow Janice.Critchlow at Sun.COM
Thu Sep 20 20:22:21 BST 2007


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Luis,
	Chris sent the link for the documentation for Grid Engine 6.0. If you 
have 6.1 instead, the link is:

http://docs.sun.com/app/docs/coll/1017.4

Janice

Chris Dagdigian wrote:
> Hi Luis,
> 
> My replies are inline with your message ...
> 
> First off, this is your best source for documentation:
> 
> http://docs.sun.com/app/docs/coll/1017.3?l=en&q=N1GE
> 
> On Sep 20, 2007, at 11:53 AM, Luís Miguel Silva wrote:
> 
>> Hello everybody,
>>
>> I''ve just started messing around with SGE and i was wondering if  
>> anybody could
>> help me find out how to:
>> - check existing nodes on cluster
> 
> 
> Run the commands "qstat -f" and "qhost"
> 
> Read the manpages for "qstat" and "qhost" to learn how they work
> 
>> - check node state
> 
> 
> Use the "qstat" program
> 
>> - how to add a compute node to the cluster
> 
> 
> Run the script "./install_execd" or "./inst_sge -x" from within  
> $SGE_ROOT while logged into the compute nodes.
> 
> For info on some of the prerequisites and dependencies, this blog  
> article may be of use:
> http://gridengine.info/articles/2005/09/29/things-to-think-about- 
> before-installing
> 
> 
>> - how to ask more then one compute node during job submission
> 
> 
> More than one node only works with parallel jobs. You'll need to  create 
> a parallel environment (PE). The SGE documentation on parallel  
> environments will help here.
> 
>> - is there any way to run a script after a job is finished /  canceled 
>> / failed ?
> 
> 
> These are called epilog scripts; there are a number of ways to do  this 
> depending on your specific needs.
> 
>>
>> After i installed the SGE service, i think i added my two compute  
>> nodes (the
>> headnode + a dedicated compute node) but i don''t know how to check  if i
>> configured them correctly.
>>
> 
> "qstat -f" is your friend
> 
>> Every job i submit is executed on my compute node so im guessing my  
>> headnode is
>> not properly configured as a compute node.
>>
> 
> This could be true or your head node may be "too busy" as measured by  
> various load indexes measured by SGE. It could be normal behavior on  
> your system. "qstat -f" will let you know of any real problems.
> 
> If all else fails you can explicitly request your head node run a job:
> 
>   qsub -q all.q at my-head-node ./my-test-script.sh
> 
>   qrsh -q all.q at my-head-node "date; hostname; uptime"
> 
> 
>> Could anybody point me to some "cheat sheets" with simple / direct  
>> examples on
>> SGE''s different commands / syntaxes?
> 
> 
> 
> 
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