Difference between revisions of "Contrib:Claws/Code Aster/amd math"

Latest revision as of 13:54, 4 February 2010

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Using AMD math libs with Code_Aster

Small guide to using AMD math libs. with Aster. Download them at http://developer.amd.com/cpu/Libraries/acml/downloads/pages/default.aspx

To use the AMD math libraries to compile Code_Aster is not very complicated; follow these few steps and you're golden:

In the setup.py file change the preferred compiler:

PREFER_COMPILER = 'GNU_without_MATH'

Now insert a line containing the path to where you installed them:

MATHLIB= '-L/opt/acml4.3.0/gfortran64/lib -lacml'

Make sure Aster can find them:

(as root): Create a file called /etc/ld.so.conf.d/amd_math.conf - the file contains the path /opt/acml4.3.0/gfortran64/lib - run 'ldconfig'

Now start the installation of Aster as you normally would.

A small test gave me some pretty good initial results. Before and after applying the AMD math libs.

Before:

********************************************************************************
* TOTAL_JOB                :     168.85 :       3.85 :     172.70 :     173.04 *
********************************************************************************

After:

********************************************************************************
* TOTAL_JOB                :      87.56 :       4.11 :      91.67 :      92.07 *
********************************************************************************

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/Claws 2010/02/04 12:18