From: Sippel, Christian (Christian.Sippel@IZB.DE)
Date: Tue Apr 22 2003 - 10:43:20 EDT
I'm not an expert but I have heard that a single process has to support
asyncronous I/O and multiple threads to be able to take advantage of more
than one processor. For my opinion it's rahter a question of your
application than of the OS. I would go and ask the manufacturer.
HTH,
Christian
> ----------
> Von: RANGI, JAI[SMTP:JAI_RANGI@SDSTATE.EDU]
> Antwort an: IBM AIX Discussion List
> Gesendet: Dienstag, 22. April 2003 16:22
> An: aix-l@Princeton.EDU
> Betreff: Re: Few Questions
>
> Just one....
>
> Jai Rangi
>
>
> -----Original Message-----
> From: Sippel, Christian [mailto:Christian.Sippel@IZB.DE]
> Sent: Tuesday, April 22, 2003 9:13 AM
> To: aix-l@Princeton.EDU
> Subject: AW: Few Questions
>
> How many processes is the application using?
>
> > ----------
> > Von: RANGI, JAI[SMTP:JAI_RANGI@SDSTATE.EDU]
> > Antwort an: IBM AIX Discussion List
> > Gesendet: Dienstag, 22. April 2003 16:04
> > An: aix-l@Princeton.EDU
> > Betreff: 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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