Re: Few Questions

From: Renison, Rick (rick.renison@EDS.COM)
Date: Tue Apr 22 2003 - 10:18:10 EDT


The application sounds like a single process. A single process, unless coded
for multiple threads, will only run under one CPU at a time.
...Rick

> -----Original Message-----
> From: RANGI, JAI [mailto:JAI_RANGI@SDSTATE.EDU]
> Sent: April 22, 2003 10:04 AM
> To: aix-l@Princeton.EDU
> Subject: Few Questions
>
>
> We have RS6000, running AIX5L 32 bit, 4 processors.
>
> I run an application called GAMESS (Chemistry), The max CPU
> utilization it
> use is max of one processors out of 4, though there is more
> CPU that can be
> used, but all it use is 25% of the total CPU resources. Is
> there something
> in AIX that is not allowing it to use more than 1 processor.
> How to take
> advantage of 4 or all the available CPU resources.
>
> The system is capable of running 64 bit, is there any documentation to
> upgrade the system from 32 bit to 64 bit.
> Also we have some applications which are running in 32 bit
> environment, can
> we run those application in 64 bit environment as well
> without any problem
> or change. (I guess not, but I am not sure)
> Any help on any of the above will be appreciated....
>
>
>
> Jai Rangi
>



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