[GE users] Ressource quota

Jean-Paul Minet Jean-Paul.Minet at uclouvain.be
Wed Aug 22 10:36:29 BST 2007


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Hi,

We have a cluster composed of 128 biproc nodes and a few SMP machines (8 cpus) member of the @smp group.  Using the new ressource quota feature of SGE 6.1, we wanted to limit the total of cpu used by any user to 64, among which 16 at most could be used on the SMP machines.  Here is the rule we defined:

{
   name         max_slots
   description  Maximum slots per user
   enabled      TRUE
   limit        users {*} hosts @smp to slots=16
   limit        users {*} to slots=64
}

The limits seem to be enforced:


> qquota -u sdubois
resource quota rule limit                filter
--------------------------------------------------------------------------------
max_slots/1        slots=16/16          users sdubois hosts @smp
max_slots/2        slots=56/64          users sdubois

but the maximum 64 total doesn't include the SMP machines (lmexec-6 and lmexec-7 are members of @smp):

> qstat -u sdubois
  78102 0.00019 graph      sdubois      r     08/19/2007 05:34:54 all.q at lmexec-110                   8        
  78099 0.00019 graph      sdubois      r     08/18/2007 10:20:58 all.q at lmexec-37                    8        
  78210 0.00019 graph      sdubois      r     08/19/2007 18:51:27 all.q at lmexec-50                    8        
  78563 0.00019 graph      sdubois      r     08/21/2007 14:53:31 all.q at lmexec-57                    8        
  78107 0.00019 graph      sdubois      r     08/19/2007 13:55:49 all.q at lmexec-6                     8        
  78543 0.00019 alk8       sdubois      r     08/21/2007 08:54:50 all.q at lmexec-7                     4        
  78766 0.00019 alk8       sdubois      r     08/22/2007 09:16:14 all.q at lmexec-7                     4        
  78501 0.00019 alc8       sdubois      r     08/21/2007 03:51:35 all.q at lmexec-74                    8        
  78341 0.00019 alc8       sdubois      r     08/20/2007 10:12:15 all.q at lmexec-85                    8        
  78362 0.00019 alk8       sdubois      r     08/20/2007 12:11:11 all.q at lmexec-92                    8        

I am a bit puzzled as the line

   limit        users {*} to slots=64

isn't referring to any particular host group and therefore should be calculated accross the whole cluster, thus including the @smp group.

Any insight ?

Thanks for any help

Rgds

-- 
Jean-Paul Minet
Institut de Calcul Intensif et de Stockage de Masse (CISM)
Université Catholique de Louvain
http://www.cism.ucl.ac.be

Place Croix du Sud, 1
1348 Louvain-la-Neuve
Belgium

Tel: (32) 010/47.35.67
Fax: (32) 010/47.34.52

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