Re: Re: 128+ proccessor jobs on 64bit Widows hang upon completion of the simulation.

From: Ilya Chorny (ichorny_at_gmail.com)
Date: Mon Jul 30 2007 - 16:36:02 CDT

Well it compiled with tcp but now 128p jobs jobs now hang at the "Entering
Startup Phase 0" and the scaling is much worse. Does not scale past 8
processors. I have Quad cores so 8 processors per machine.

Best,

Ilya

On 7/30/07, Eric Bohm <ebohm_at_cs.uiuc.edu> wrote:
>
> Yes.
>
> You may also need to revise your arch (and possible Make.charm) to point
> to the new charm target as the new charm will be in net-win64-tcp and
> the old in net-win64.
>
>
>
> Ilya Chorny wrote:
>
> Will I have to rebuild NAMD as well?
>
>
>
> On 7/30/07, Eric Bohm <ebohm_at_uiuc.edu> wrote:
> >
> > add tcp as a parameter after the machine specification.
> >
> > ./build charm net-win64 tcp
> >
> > Assuming net-win64 was your target before.
> >
> >
> > Ilya Chorny wrote:
> > > How do I do that?
> > >
> > > Thanks,
> > >
> > > Ilya
> > >
> > >
> > > On 7/30/07, *Eric Bohm* <ebohm_at_uiuc.edu <mailto:ebohm_at_uiuc.edu>>
> > wrote:
> > >
> > > You could try using tcp in your charm build instead of udp (the
> > > default).
> > >
> > > Ilya Chorny wrote:
> > > > I ran the apoa1 benchmark on my 64 bit Windows cluster running
> > NAMD
> > > > with 2,4,8, 16, 32,and 64 processors and the jobs exited at the
> > > end of
> > > > the simulation, however 128, and 256 processor jobs just hang at
> > the
> > > > end of the simulation. All the output files were correctly
> > written.
> > > > The network I am running is GigE. Any ideas?
> > > >
> > > > Thanks!!!!
> > > >
> > > > Ilya
> > > >
> > > > --
> > > > Ilya Chorny Ph.D.
> > > > Stroud Lab
> > > > UC San Francisco
> > >
> > >
> > >
> > >
> > > --
> > > Ilya Chorny Ph.D.
> >
> >
>
>
> --
> Ilya Chorny Ph.D.
>
>
>

-- 
Ilya Chorny Ph.D.

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