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Re: Kernels dying on parallel code

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  • Subject: [mg111471] Re: Kernels dying on parallel code
  • From: "Jon Harrop" <usenet at>
  • Date: Mon, 2 Aug 2010 07:06:49 -0400 (EDT)
  • References: <i33ctt$85p$>

I only have a license for 4 kernels but I'd expect Mathematica to tell me that 
rather than spew out pages of errors every time I try to use parallelism. I 
just wanted to check that everyone else was seeing the same behaviour.


"Zach Bjornson" <bjornson at> wrote in message 
news:i33ctt$85p$1 at
> Do you have a proper license for 8 kernels? The normal home(?) license is 
> only
> for four kernels; this may be Mathematica's way of saying you can only use
> four. Just a guess.
> Quoting Jon Harrop <usenet at>:
>> I have an 8-core desktop composed of two quadcore Xeons. Whenever I try 
>> to
>> run parallel Mathematica 7.0.1 code it tries to spawn 8 kernels and then
>> four of them die, resulting in lots of communication errors. Is this 
>> normal?
>> --
>> Dr Jon Harrop, Flying Frog Consultancy Ltd.

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