[GE users] question about queues and limitations to specific nodes

gragghia gragghia at utk.edu
Thu May 13 20:48:39 BST 2010


I think Reuti's ideas sent previously were worth looking into, but I was 
not able to view your attached documents.  The sunsource system must be 
filtering them out.

- Gerald

On 5/13/2010 2:02 PM, jnorris wrote:
> Did we get any further in looking into this?  Thanks for the help.
>
>
> jnorris wrote:
>    
>> Thanks to all for your comments and help - attached are the two queues
>>
>> gragghia wrote:
>>
>>      
>>> To only allow certain users use of the IB machines, I would make them a
>>> cluster queue and then only set the "allow" list.  Explicitly added the
>>> "deny" list is not needed.
>>>
>>> How is the file /opt/mpdd_tmp/hydra.hosts being created?  If it is
>>> dynamic, you should cat the contents of this file out to ensure that it
>>> contains the correct hosts.  You may also want to execute "qstat -g t"
>>> within the batch script to show what SGE thinks it is allocating to you.
>>>
>>> If you provide the output for "qconf -sq ib.q" and "qconf -sq
>>> ethernet.q" it will help a lot in determining the source of the problem.
>>>
>>> - Gerald
>>>
>>>
>>> On 5/12/2010 4:28 PM, jnorris wrote:
>>>
>>>
>>>        
>>>> Hello to all,
>>>>
>>>> Here is the situation:
>>>>
>>>> I have 66 nodes total in my cluster - I need to allow select users to
>>>> access the first 8 nodes and all users access the remaining nodes.
>>>>
>>>> The first 8 nodes I put into a queue ib.q and the rest in ethernet.q  I
>>>> set the exclude user list on IB to all of the user lists of those that
>>>> should not be allowed and the user list to the users that are allowed.
>>>> With ethernet.q  I have all user list in users and NONE for exclude users.
>>>>
>>>> Then I did some testing with a simple hello script that keeps track of
>>>> what node its running on and prints the message:
>>>>
>>>> Hello from process 0 on c1
>>>> Hello from process 1 on c2
>>>> Hello from process 2 on c3
>>>> Hello from process 3 on c4
>>>> Hello from process 4 on c5
>>>> Hello from process 5 on c6
>>>> Hello from process 6 on c7
>>>> Hello from process 7 on c8
>>>>
>>>>
>>>> I set the #$ -q ethernet.q  in the script and set the run as:
>>>>
>>>> mpiexec.hydra  -f /opt/mpdd_tmp/hydra.hosts  -n 10 ./hello
>>>>
>>>> The out put above is what I obtain.  Ok here are my questions:
>>>>
>>>> 1)  is this the best way to do this? - I am real newbie to sge
>>>> 2)  by the scenario above and considering that c1-c8 are the nodes that
>>>> should not be in this output - what am I doing wrong?
>>>>
>>>> Thank beforehand for any and all help.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>          
>>>
>>>
>>>        
>>
>>      
>    

-- 
Gerald Ragghianti

Newton HPC Program http://newton.utk.edu/
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