Two X servers, one box

Cook, Rich cook47 at llnl.gov
Tue Jul 3 09:06:16 PDT 2012


What I'm trying to do is run a single visualization application per X server to enable distributed rendering of some very large scientific datasets.  Each application uses the hardware to render its piece then composits it with the other programs on the cluster via TCP/IP.
So basically instead of "xterm" below there will be "//usr/local/tools/ensight-92/bin/ensight92.client -some fancy -args"


On Jul 3, 2012, at 2:43 AM, StompDagger1 at yahoo.com<mailto:StompDagger1 at yahoo.com> wrote:

what are you trying to do? multiseat? multihead?

An wise Scandinavian old man once said: "in the end, everything is going to be alright"
________________________________
From: "Cook, Rich" <cook47 at llnl.gov<mailto:cook47 at llnl.gov>>
To: "xorg at lists.x.org<mailto:xorg at lists.x.org>" <xorg at lists.x.org<mailto:xorg at lists.x.org>>
Sent: Tuesday, July 3, 2012 4:23 AM
Subject: Re: Two X servers, one box

Ah hell, now it's just working.  How strange.  No doubt as soon as I send this it will stop working again.
Never mind!  Thanks.

On Jul 2, 2012, at 6:13 PM, Cook, Rich wrote:

> Hi,
> I am trying to run two instances of X.Org<http://X.Org> X Server 1.10.4 per node of our dual-GPU Red Hat cluster.
> I do this:
> /usr/bin/startx /usr/bin/xterm -display :0 -- -nolock -auth /g/g0/rcook/.Xauthority-0 :0
> and this:
> /usr/bin/startx /usr/bin/xterm -display :1 -- -nolock -auth /g/g0/rcook/.Xauthority-1 :1
>
> And I almost get there -- in fact, it worked once.  But mostly the X server starts but I get "invalid MIT-MAGICK-COOKIE" errors which don't show up in the Xorg logfile, so I assume I'm very close, just doing something wrong with xauth.
>
> Can anyone on this list help a poor man out?  Thanks
>
>
> --
> ✐Richard Cook
> ✇ Lawrence Livermore National Laboratory
> Bldg-453 Rm-4024, Mail Stop L-557
> 7000 East Avenue,  Livermore, CA, 94550, USA
> ☎ (office) (925) 423-9605
> ☎ (fax) (925) 423-6961
> ---
> Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
> (opinions expressed herein are mine and not those of LLNL)
>
>
>

--
✐Richard Cook
✇ Lawrence Livermore National Laboratory
Bldg-453 Rm-4024, Mail Stop L-557
7000 East Avenue,  Livermore, CA, 94550, USA
☎ (office) (925) 423-9605
☎ (fax) (925) 423-6961
---
Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
(opinions expressed herein are mine and not those of LLNL)



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--
✐Richard Cook
✇ Lawrence Livermore National Laboratory
Bldg-453 Rm-4024, Mail Stop L-557
7000 East Avenue,  Livermore, CA, 94550, USA
☎ (office) (925) 423-9605
☎ (fax) (925) 423-6961
---
Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
(opinions expressed herein are mine and not those of LLNL)



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