Re: [info-performer] DBASE Error

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From: Tom Flynn (flynnt++at++engr.sgi.com)
Date: 11/20/2002 20:56:24

On Wed, 20 Nov 2002, Andreas Ekstrand wrote:

> Hi Yair!
>
> I wonder if pfuProcessManager works in Linux? Are there any limitations
> comparing to IRIX?

pfuProcessManager does work in a limited fashion under linux.
you can assign non-degrading priorities. there isn't currently a
user-level mechanism for locking or isolating processes to specific CPUs
under linux, therefore that portion of the pfuProcessManager will not
work (it will return failure/error codes).

hope that helps,
tom

>
> Regards,
> Andreas Ekstrand
>
>
> Yair Kurzion wrote:
> >
> > Hello Chris !
> >
> > This printout means that sysmp(MP_MUSTRUN_PID, 0, pid) failed (see man sysmp).
> >
> > Performer makes this call from within libpf because you are not using
> > pfuProcessManager to place your processes on CPUs. I don't know what made
> > sysmp fail.
> >
> > If you want to get more information about this problem, you can configure your
> > program to use pfuProcessManager. Sample code from man pfuProcessManager:
> >
> > // Initialization and start of pfuProcess Manager
> > pfuInitDefaultProcessManager();
> >
> > // Configure OpenGL Performer and fork extra processes if
> > // configured for multiprocessing.
> > pfConfig();
> >
> > // Tell ProcessManager to configure the system
> > pfuProcessManagerMode(PFUPM_CONTINUOUS, 1);
> > pfuProcessManagerMode(PFUPM_LOCK_DOWN, 1);
> > pfuProcessManagerMode(PFUPM_PRIORITIES, 1);
> > pfuReconfigureProcessManager();
> >
> > Performer ships with the source to pfuProcessManager and you can see/modify it
> > in:
> >
> > /usr/share/Performer/src/lib/libpfutil/pfuProcessManager.C
> >
> > If your application still fails (even when using pfuProcessManager) You can add
> > a call to `perror' right after sysmp(MP_MUSTRUN_PID...) fails. This should
> > print out the exact reason why sysmp failed. You'd have to recompile libpfutil
> > and point LD_LIBRARYN32_PATH to the new library location.
> >
> > -yair
> >
> > >
> > > We have a pfCAVE application that most times gives us the error:
> > >
> > > PF Notice (22): MUSTRUN of DBASE process ####### on CPU 0 failed.
> > >
> > > running on a 16 processor Onyx2 with 4 pipes. When the error occurs,
> > > performance of the application is sluggish. This error does not occur on a
> > > 2-processor Octane2 or SMP Linux.
> > >
> > > Can someone tell me what this means and what may be causing it? I believe
> > > we are running Performer 2.5 on the Onyx2.
> > >
> > > Chris
> > > ___________________________________________________________________
> > > Chris A. Sandridge
> > > Immersive Design and Simulation Lab
> > > Analytical and Computational Methods Branch
> > > M.S. 240, NASA Langley Research Center
> > > 3 Langley Blvd., B1229, Rm. 237
> > > Hampton, VA 23681
> > > email: c.a.sandridge++at++larc.nasa.gov
> > > phone: (757) 864-2816
> > > fax: (757) 864-8912
> > >
> > > -----------------------------------------------------------------------
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> > > Open Development Project: http://oss.sgi.com/projects/performer/
> > > Submissions: info-performer++at++sgi.com
> > > Admin. requests: info-performer-request++at++sgi.com
> > > -----------------------------------------------------------------------
> > >
> >
> > --
> > \_________ \_____ \__ \__ \_____
> > \_________ \_____ \__ \__ \_____ Yair Kurzion
> > \__ \__ \____\__ \__ yair++at++sgi.com
> > \__ \__ \__ (650) 933-6502
> > \__ \__ \__
> > \__ \__ \__
> >
> > -----------------------------------------------------------------------
> > List Archives, Info, FAQ: http://www.sgi.com/software/performer/
> > Open Development Project: http://oss.sgi.com/projects/performer/
> > Submissions: info-performer++at++sgi.com
> > Admin. requests: info-performer-request++at++sgi.com
> > -----------------------------------------------------------------------
>
> --
> ---------------------------------------------------------
> FTM-AE Andreas Ekstrand |E-mail: Andreas.Ekstrand++at++saab.se
> Saab AB |Phone: +46 (0)13 - 18 40 42
> SE-581 88 Linkoping |Fax: +46 (0)13 - 18 41 77
> SWEDEN |
> ---------------------------------------------------------
>
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> Open Development Project: http://oss.sgi.com/projects/performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
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> 

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 almost always victorious because of their speed, agility, and timing
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