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Polyhedron benchmark
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mkcolg



Joined: 30 Jun 2004
Posts: 6218
Location: The Portland Group Inc.

PostPosted: Fri Sep 23, 2011 3:04 pm    Post subject: Reply with quote

Hi Michal,

Thanks for the link. John Appleyard had let us know late last week that they were refreshing Polyhedron but had not given us his results nor access to the code. I just started looking at the new codes to determine how much of the difference is due to flag selection and will let you know what I find. I also let our application engineering team about the results and they will start to take a look as well.

FYI, our apps team determined that we are missing some opportunities for vectorization in INDUCT and our compiler team is currently implementing these recommendations.

Best Regards,
Mat
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Michal Kvasnicka



Joined: 28 Apr 2010
Posts: 23

PostPosted: Mon Oct 31, 2011 2:50 am    Post subject: Reply with quote

Are these new opportunities for vectorization implemented in PGI 11.10?

Michal
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mkcolg



Joined: 30 Jun 2004
Posts: 6218
Location: The Portland Group Inc.

PostPosted: Tue Nov 01, 2011 1:50 pm    Post subject: Reply with quote

Hi Michal,

11.10 only contains a few small changes mostly for CUDA. We're working on general enhancements to vectorization which should available in the 12.0 release.

- Mat
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Michal Kvasnicka



Joined: 28 Apr 2010
Posts: 23

PostPosted: Tue Feb 07, 2012 2:04 am    Post subject: Reply with quote

OK ... release 12.1 is out, congratulation!

What about previously announced vectorization enhancements? Are they already implemented?

Is there any significant impact on polyhedron benchmark?

Michal
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mkcolg



Joined: 30 Jun 2004
Posts: 6218
Location: The Portland Group Inc.

PostPosted: Wed Feb 08, 2012 4:39 pm    Post subject: Reply with quote

Hi Michal,

Our compiler engineers decided to prioritise some general optimisation opportunities over the specific ones found in INDUCT and MP_PROP_DESIGN. So while I do show a bit of an increase over 11.10 (~6%), the large deltas still do exist. I'll keep bring it up in our weekly performance meetings.

- Mat
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