Newsgroups: comp.parallel.pvm
From: haferman@audry.gsfc.nasa.gov (Jeff Haferman)
Subject: Re: PVM on multi-processor SGI
Organization: NASA Goddard Space Flight Center -- Greenbelt, Maryland USA
Date: 11 Apr 1996 16:46:44 GMT
Message-ID: <4kjd1k$32p@post.gsfc.nasa.gov>

In article <316D11DE.41C67EA6@viewlogic.com>, Gary Greenstein <garyg@viewlogic.com> writes:
> Jeff Haferman wrote:
>> 
>> I have access to an SGI with 6 processors.  My PVM application
>> actually only needs 4 of the processors.  How do I start up a
>> pvmd on the individual processors on a single machine?
>> 
>> Jeff
>> 
> 
> You shouldn't have to do anything special.  We use SGIMP machines 
> with only one daemon for the machine, not one daemon per processor.
> In the pvm console, just "add <name>" once.
> 

All right, I'll give it a try... but I am curious, on multiprocessor
machines, if I just start up a single pvmd, and then spawn 4
processes from my application, what kinds of values are returned
by pvmconfig() for things like "host"?  

Also, once I spawn my 4 tasks, suppose that they are split 2 and
2 over 2 processors due to system load.  Is this then a "static"
configuration?  In other words, suppose a few moments after I spawn
the tasks, the system load drops on all the processors on the machine.
Then am I still stuck with the 2 processors that I got in the original
spawn?  






