[torqueusers] Non-cummulative pbsnodes -o command

John Wang jwang at dataseekonline.com
Thu Feb 14 11:04:52 MST 2008


Hello Brock

Well, that¹s not the behaviour that I¹m getting on torque 2.0.0p7 and torque
2.2.1.   With both of them, the sequence of commands that you¹ve cited would
result in only node nyx101 being offline and all other nodes being marked
online regardless of what there previous states.

Regards,
John


On 2/13/08 5:04 PM, "Brock Palen" <brockp at umich.edu> wrote:

> I never had to do this.  I just always use a single node name.  No already
> offline nodes come back online.
> 
> pbsnodes -o nyx100
> pbsnodes-o nyx101
> 
> both will be ofline
>  
> 
> Brock Palen
> Center for Advanced Computing
> brockp at umich.edu
> (734)936-1985
> 
>  
> 
> On Feb 13, 2008, at 5:41 PM, John Wang wrote:
> 
>>  This is probably a fairly basic beef about Torque but it has been bugging
>> the hell out of me.   
>>  
>>  When using the command ³pbsnode ­o ­N Œmessage¹ node1 node2 ...² to drain
>> nodes, we have to list all the nodes that we want to stay drained in that
>> single command ie.: even if a node was previously drained for another reason,
>> issuing a ³pbsnode ­o² command without specifying the previously drained
>> nodes results in those nodes being marked online instead of offline.   
>>  
>>  This is truly ridiculous, it¹s like playing a game of bonk the gopher.   It
>> is conceivable to have more nodes that you would want drained then can be
>> specified on a single line and there should be no reason for us to have to
>> independently track what nodes should be offline.
>>    
>>  As near as I can tell, most people avoid this with creative workarounds such
>> as shutting down the pbs_mom daemon on the nodes to be offline or by creating
>> very specific reservations.   I¹d imagine that there may be more such
>> creative workarounds spurring more diversity in operational practices.
>>  
>>  So the question is, how do you work around this ridiculous behaviour at your
>> site and is there any valid technical reason for pbsnodes to work in this
>> fashion?
>>  
>>  Regards,
>>  John
>> _______________________________________________
>> torqueusers mailing list
>> torqueusers at supercluster.org
>> http://www.supercluster.org/mailman/listinfo/torqueusers
>>  
> 
> 


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