xsi satellite hanging

Date : Tue, 29 Aug 2006 14:50:57 +0200
To : <XSI(at)Softimage.COM>, <mentalray(at)mentalimages.com>
From : "Stefano Jannuzzo" <stefanojannuzzo(at)tiscali.it>
Subject : xsi satellite hanging
I have about 50k hairs, each with a geo instance, total triangles ~20M.
When rendering (xsibatch -r), windows suicides shortly after, while linux goes through with no problems.
However, when rayhosting on 2 extra linux boxes, with either raysat or ray services, 90% of the times the rendering hangs waiting forever, sometimes after a short percentage of the render has been done, sometimes with just one tile missing from one of the hosts.
Both the master and the hosts go to sleep, cpus to 0%, memory still taken.
 
strace of the processes:
 
On the master, a series of gettimeofday() and futex(...)
On the hosts, a series of gettimeofday() and select(...)
 
The resolution is ~2K. If I render 500 pixels or so, the render always succeeds.
 
Someone went through this already?
Tx. Stefano

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