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Re: [RFC] build with OpenMP by default?

From: Dmitry Roshchin
Subject: Re: [RFC] build with OpenMP by default?
Date: Wed, 23 Apr 2014 11:27:05 +0400
User-agent: KMail/4.12.4 (Linux/3.11.10-7-desktop; KDE/4.12.4; x86_64; ; )

On Tuesday 22 April 2014 09:31:11 Mike Miller wrote:
> Is it time to build Octave with OpenMP by default? It looks to me like
> it's been an "experimental" disabled-by-default option since the 3.4.0
> release. It has been enabled in Debian and Ubuntu builds since 3.4.3
> was released in late 2011 and I'm not aware of any negative
> consequences.

Not all octave-forge packages build with enabled OpenMP. At least:


>[  573s] /home/abuild/rpmbuild/BUILD/octave-
failed to load: /home/abuild/rpmbuild/BUILD/octave-
undefined symbol: GOMP_parallel_start


> [ 1340s] /home/abuild/rpmbuild/BUILD/octave-
forge/install/nurbs-1.3.7/x86_64-suse-linux-gnu-api-v49+/bspeval.oct: failed 
to load: /home/abuild/rpmbuild/BUILD/octave-forge/install/nurbs-1.3.7/x86_64-
suse-linux-gnu-api-v49+/bspeval.oct: undefined symbol: GOMP_parallel_start

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