[Radiance-general] running radiance on multiple cores

[Randolph M. Fritz]

So much for that hypothesis.

I've just managed to produce versions of the problem on a Linux, a 
FreeBSD, and a Mac OS system. :-(

Same Radiance model and scripts; probably three slightly different 
versions of Radiance.

Randolph

On 2012-05-23 21:01:30 +0000, Jack de Valpine said:

> Unfortunately, I suspect you are correct...
> 
> Sent from my Verizon Wireless 4G LTE DROID
> 
> 
> -----Original message-----
> From: "Randolph M. Fritz" <RFritz at lbl.gov>
> To: radiance-general at radiance-online.org
> Sent: Wed, May 23, 2012 16:57:02 EDT
> Subject: Re: [Radiance-general] running radiance on multiple cores
> 
> On 2012-05-23 16:15:36 +0000, Greg Ward said:
> 
> > Some people have complained about misplaced or incomplete tiles using
> > rpiece, but I haven't been able to reproduce or find the problem.
> 
> The problem seems--I say cautiously--to occur on Linux systems and not
> BSD systems. I think I'm going to run a test.
> 
> Randolph
> 
> > As for varying tile brightness, this is usually caused by forgetting to
> > specify an ambient file (rad AMBFILE variable), causing redundant and
> > wasteful as well as inconsistent calculations.
> >
> > -Greg
> >
> >> From: "Giovanni Betti"
> >>
> >> Date: May 23, 2012 8:50:40 AM PDT
> >>
> >> Dear List,
> >>
> >> I am running into some issues while running radiance on multiple cores.
> >> I have radiance running on a Linux virtual machine and I am using the
> >> rad –N option.
> >> Sometimes though, I happen to notice in the final image tiles of
> >> varying brightness or even misplaced tiles.
> >> I thought it had to do with poor synchronization because of reading and
> >> writing on the network, but it seem to happen also when I have all the
> >> files on my local drive.
> >> Has anyone run into a similar problem and/or knows a solution for it?
> >>
> >> Thanks in advance,
> >>
> >> Giovanni
> 
> 
> --
> Randolph M. Fritz
> 
> 
> 
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-- 
Randolph M. Fritz