RE: NONMEM compiler
Hi,
Just to add my 2 cents…
In my opinion should performance measures like these not the primary goal of
the exercise…
The priority for NONMEM as a scientific tool should be consistency.
http://wiki.scinethpc.ca/wiki/images/f/f2/FP_Consistency.pdf
http://wiki.scinethpc.ca/wiki/images/f/f2/FP_Consistency.pdf
in an age of multi processor computing there are –in my opinion- no good
reasons to tinker with the math…
Going from 1 core to 2, 3 or more will improve performance far beyond
optimization.
K. Regards,
Xavier
Quoted reply history
From: [email protected] [mailto:[email protected]] On
Behalf Of Mark Sale - Next Level Solutions
Sent: 15 March 2012 12:31
To: 'nmusers'
Subject: RE: [NMusers] NONMEM compiler
Ronald,
The web site that Oskar posted seems extremely useful, and confirmed the
rumors that have been around for awhile. But, I'm wondering why anyone would
use 32 bit, when 64 bit is faster (about 20%) and seems to be better behaved
numerically?
Mark
Mark Sale MD
President, Next Level Solutions, LLC
www.NextLevelSolns.com http://www.NextLevelSolns.com
919-846-9185
A carbon-neutral company
See our real time solar energy production at:
http://enlighten.enphaseenergy.com/public/systems/aSDz2458
http://enlighten.enphaseenergy.com/public/systems/aSDz2458
-------- Original Message --------
Subject: Re: [NMusers] NONMEM compiler
From: Oskar Clewe <[email protected]
<mailto:[email protected]> >
Date: Wed, March 14, 2012 10:16 am
To: "Gieschke, Ronald" <[email protected]
<mailto:[email protected]> >, "'nmusers'"
<[email protected] <mailto:[email protected]> >
Dear Ronald
To my understanding the IVF is considered to be somewhat faster than
the gfortran compiler in general. But gfortran is on the other hand open
source. Regarding "quality" I think it is more dependent upon model than
compiler. Here are some non NONMEM related compiler benchmarks
http://www.polyhedron.com/compare0html http://www.polyhedron.com/compare0html
.
Kind Regards
Oskar
-- Oskar Clewe, MSc Pharm PhD Student Pharmacometrics Research Group
Department of Pharmacutical Biosciences Uppsala University P.O. Box 591 751 24
Uppsala SWEDEN [email protected] <mailto:[email protected]>
On 2012-03-14 13:34, Gieschke, Ronald wrote:
Dear nmusers,
Do you have any recommendations regarding gfortran and Intel Visual
Fortran under 32 bit Windows 7? Are runtimes and quality (e.g. covariance step
successful) comparable?
Many thanks for your response in advance.
v
<<image001.png>>