[GE users] Issue seen in 6.2U4 : memory values reported by SGE too low compared to top output on linux systems

rayson rayrayson at gmail.com
Thu Aug 12 21:19:26 BST 2010


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Hi Jenny,

What is the online job usage?? You can get that from the output of
"qstat -j <jod>" while the job is running.

Rayson



On Thu, Aug 12, 2010 at 7:21 AM, reuti <reuti at staff.uni-marburg.de> wrote:
> Hi,
>
> Am 12.08.2010 um 04:27 schrieb jenny:
>
>> I can confirm that both vmem and maxvmem values shown by qstat (and qacct) are modulo 2^32 in bytes, at least on lx24-amd64. Here is the output from qacct for a simple C program that calloc()-s some good deal of memory of various sizes:
>>
>> calloc 3 GiB:
>> cpu          3.540
>> mem          7.374
>> maxvmem      3.013G
>>
>> calloc 7 GiB:
>> cpu          8.120
>> mem          22.271
>> maxvmem      3.013G
>>
>> calloc 11 GiB:
>> cpu          12.710
>> mem          34.406
>> maxvmem      3.013G
>>
>> calloc 4 GiB:
>> cpu          4.730
>> mem          0.012
>> maxvmem      13.074M
>>
>> It looks like a bug in SGE to me - vmem's value is converted to 32-bit somewhere along the path (probably as early as in the shepherd). That results in incorrect value for the time integral in "mem" as well.
>>
>> Does anybody met the same problem?
>
> is this a copy/paste of this post?
>
> http://gridengine.sunsource.net/ds/viewMessage.do?dsForumId=38&dsMessageId=247921
>
> -- Reuti
>
>
>
>>
>> 2010-08-11
>> ???  Jenny_Lu
>> ????
>> ?????????
>> lulh at genomics.org.cn
>> Tel:075525273811
>> Mobile:15986782583  62583
>
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