[mvapich-discuss] Execution problem

Craig Tierney Craig.Tierney at noaa.gov
Wed May 7 11:09:04 EDT 2008


Srikanth Gumma wrote:
> Hi Joshua,
> 
> I tried with ulimit -l unlimited, But it didn't work
> 
> Please let me know any other options
> 

Where did you put the ulimit command?  If you put
it right before the mpirun command, that won't help.
It needs to be in your environment on the remote nodes.
You should put it in your .cshrc/.bashrc.

Are you using a batch system (like SGE)?

Craig




> Regards
> Srikanth
> 
> -----Original Message-----
> From: Joshua Bernstein [mailto:jbernstein at penguincomputing.com] 
> Sent: Wednesday, May 07, 2008 8:41 AM
> To: Srikanth Gumma
> Cc: mvapich-discuss at cse.ohio-state.edu
> Subject: Re: [mvapich-discuss] Execution problem
> 
> Hi Srikanth,
> 
> On May 6, 2008, at 7:49 PM, Srikanth Gumma wrote:
> 
>> libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
>>     This will severely limit memory registrations.
>> libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
> 
> This tells me that perhaps you, as a user aren't able to lock as much  
> memory as required to startup the job. Can you give it a shot as root?
> 
> In BASH you, as root, can adjust your ulimit to unlimited to see if  
> the problem goes away:
> 
> # ulimit -l unlimited
> 
> If this works, then you need to adjust /etc/security/limits.conf and  
> relogin to enable the change.
> 
> -Joshua Bernstein
> Software Engineer
> Penguin Computing
> 
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> 


-- 
Craig Tierney (craig.tierney at noaa.gov)


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