[GE users] sge v6.0u3 new installation issue with more than 1021 hosts.

Andy Schwierskott andy.schwierskott at sun.com
Thu Mar 10 16:43:55 GMT 2005


Hi,

> Hi Joe...thanks for your response.
>
>>   What does  "cat /proc/sys/fs/file-nr"  report before and after you
>> run  qmaster?
>
> b4: 2358     1179    655360
> after: 2358    422    655360

What does the content of this file tell me?

>>   Also, if "cat /proc/sys/fs/file-max" is under 100,000, you might
> want
>> to boost it up a bit.
>
> 655360
>
>>   Also look at "cat /proc/sys/kernel/shmmax", and "cat
>> /proc/sys/kernel/shmall" .  You want shmmax about the same size as your
>
>> system memory, and shmall should be similarly sized.
>
> this is a 4GB memory machine
> shmmax=33554432
> shmall=2097152


Grid Engine does not use shared memory, so I don't expect any impact of
these settings on SGE's behavior.

Andy


>
> I'll discuss these with my sysadmin.
> thanks again....mac
>
>
> -----Original Message-----
> From: Joe Landman [mailto:landman at scalableinformatics.com]
> Sent: Thursday, March 10, 2005 9:48 AM
> To: users at gridengine.sunsource.net
> Subject: Re: [GE users] sge v6.0u3 new installation issue with more than
> 1021 hosts.
>
> Hi Mac:
>
>   What does  "cat /proc/sys/fs/file-nr"  report before and after you
> run  qmaster?
>
>   Also, if "cat /proc/sys/fs/file-max" is under 100,000, you might want
>
> to boost it up a bit.
>
>   Also look at "cat /proc/sys/kernel/shmmax", and "cat
> /proc/sys/kernel/shmall" .  You want shmmax about the same size as your
> system memory, and shmall should be similarly sized.
>
> Joe
>
>
> --
> Joseph Landman, Ph.D
> Founder and CEO
> Scalable Informatics LLC,
> email: landman at scalableinformatics.com
> web  : http://www.scalableinformatics.com
> phone: +1 734 786 8423
> fax  : +1 734 786 8452
> cell : +1 734 612 4615

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