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Re: Mathematica 5.2 multithreading using Debian

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63974] Re: Mathematica 5.2 multithreading using Debian
  • From: Scott Hemphill <hemphill at hemphills.net>
  • Date: Thu, 26 Jan 2006 03:42:55 -0500 (EST)
  • References: <dr7fml$l17$1@smc.vnet.net>
  • Reply-to: hemphill at alumni.caltech.edu
  • Sender: owner-wri-mathgroup at wolfram.com

Jeff Armitstead <jeffa at ieee.org> writes:

> I've been testing the multithreading capability of Mathematica 5.2 using a twin Xeon box running Debian Sarge with a 2.4 kernel.
> 
> Unfortunately the kernel crashes when I run Karl Unterkofler's benchmark with:
> 
> "OMP abort: Unable to set worker thread stack size to 4195328 bytes
> Try reducing KMP_STACKSIZE or increasing the shell stack limit."
> 
> I've tried both suggestions to no avail.  The benchmark will run fine if multithreading is turned off with "export  OMP_NUM_THREADS=1".
> 
> I suspect the problem is in the threads library I have.  Anyone had any luck with Debian say running a different kernel or a later glibc (I'm running 2.3.5)?

Try "LD_ASSUME_KERNEL=2.4.1"

Scott
-- 
Scott Hemphill	hemphill at alumni.caltech.edu
"This isn't flying.  This is falling, with style."  -- Buzz Lightyear


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