Newsgroups: comp.parallel.pvm
From: Steve Simonds <simonds@sgi.com>
Subject: Re: SGIPM64 execution problem
Organization: Silicon Graphics
Date: 3 Dec 1995 11:43:05 GMT
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Message-ID: <49s2g9$6j6@fido.asd.sgi.com>

Gary Greenstein <garyg> wrote:
>Antonio Scotti <scotti@centauro.upc.es> wrote:
>>Hi,
>>I'm tryng to run my program on a SGI power challenge with 3 processors
>>but every time I run it I receive the following message after the 
>>programs crashes:
>>
>>	libpvm [t40007]: pvmbeatask() semget: No space left on device
>>	Segmentation fault
>>
>>when I know that there is space left on the device. The program also runs fine 
>>on a cluster of SGI5 workstations.
>>Does this message has to do with semaphores? do I need to change the max number
>>of allocatable semaphores on my system?
>>Any clue would be appreciated.
>>Thanks,
>>-- Antonio
>
>
>That looks similar to the problem I posted recently, running on a 
>4-way parallel SGI machine, but with PVM_ARCH = SGIMP.  The out-of-space
>message did deal with semaphores, not disk space.  Try "ipcs -sa" to 
>query the active semaphores.  My problem was fixed by version 3.3.10.
>Perhaps you should give that a try.
>

We set the following in /var/sysgen/stune -

semmsl  = 128

if you have root access you can use systune -i to do this.

-- 
Regards, SS

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Steve Simonds - West Area Tech. Center |
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