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Re: OpenMP support
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From: |
Stefan Seefeld |
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Subject: |
Re: OpenMP support |
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Date: |
Wed, 06 Mar 2013 19:37:23 -0500 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 |
On 03/06/2013 07:27 PM, Júlio Hoffimann wrote:
>
> I don't think that option currently does anything.
>
> jwe
>
>
> That was my feeling!
>
> Any problem in adding some parallel for's in the source? It's
> embarrassing to see all those cores sleeping during intensive
> computations.
I think just adding parallel regions won't gain you much if any
performance improvements. In my experience you also need to carefully
profile performance and pin threads to cores to avoid cache conflicts.
FWIW,
Stefan
--
...ich hab' noch einen Koffer in Berlin...