[Radiance-general] "Broken pipe" message from rpiece on multi-core Linux system

[Randolph M. Fritz]

This problem is back for a sequel, and it would really help my work if 
I could get it going.

It's been a few months since I last asked about this.  Has anyone else 
experienced this in a Linux environment?  Anyone have any ideas what to 
do about it or how to debug it?

/proc/version reports:
  Linux version 2.6.18-274.18.1.el5 (mockbuild at builder10.centos.org) 
(gcc version 4.1.2 20080704 (Red Hat 4.1.2-51)) #1 SMP Thu Feb 9 
12:45:44 EST 2012

Randolph

On 2011-07-08 01:13:01 +0000, Randolph M. Fritz said:

> On 2011-07-07 16:54:06 -0700, Greg Ward said:
> 
>> Hi Randolph,
>> 
>> This shouldn't happen, unless one of the rpict processes died
>> unexpectedly.  Even then, I would expect some other kind of error to be
>> reported as well.
>> 
>> -Greg
> 
> Thanks, Greg.  I think that's what happenned; in fact seven of the
> eight died in two cases.  Wierdly, the third succeeded.  If I run it as
> a single-processor job, it works.  Here's a piece of the log:
> 
>> rpiece -F bl_blinds_rpsync.txt -PP pfLF5M90 -vtv -vp 60.0 -2.0 66.0 -vd
>> 12.0 0.0 0.0 -vu 0 0 1 -vh 60 -x 1024 -y 1024 -dp 512 -ar 42 -ms 3.6
>> -ds .3 -dt .1 -dc .5 -dr 1 -ss 1 -st .1 -af bl.amb -aa .1 -ad 1536 -as
>> 392 -av 10 10 10 -lr 8 -lw 1e-4 -ps 6 -pt .08 -o bl_blinds.unf bl.oct
> 
>> rpict: warning - no output produced
> 
>> rpict: system - write error in io_process: Broken pipe
>> rpict: 0 rays, 0.00% after 0.000u 0.000s 0.001r hours on n0065.lr1
>> rad: error rendering view blinds


-- 
Randolph M. Fritz