Atlas .so library for Opteron/Linux

Atlas .so library for Opteron/Linux

Post by David B. Chorlia » Sat, 08 Nov 2003 06:17:44



Before I try to do it, has anyone made an atlas.so for Opteron/Linux?
If I succeed, I'll gladly make it available to others.

--
David B. Chorlian
Neurodynamics Lab  SUNY/HSCB


 
 
 

Atlas .so library for Opteron/Linux

Post by SeBy » Sat, 08 Nov 2003 08:33:07



> Before I try to do it, has anyone made an atlas.so for
> Opteron/Linux?
> If I succeed, I'll gladly make it available to others.

> --
> David B. Chorlian
> Neurodynamics Lab SUNY/HSCB



Please post bench results with the optimized ATLAS Lib (3.5.12
actually)

Regards,

SeBy

 
 
 

1. ATLAS Library Problem on P4 with redhat linux 7.1

I'm trying to use atlas_P4SSE2.so with matlab, and after following Penny
Anderson's instructions about "setenv LAPACK_VERBOSITY" and
"BLAS_VERSION" I get the following error when I start matlab:

libmwlapack: loading /usr/local/matlab/bin/glnx86/atlas_P4SSE2.so
libmwlapack: load error: /usr/local/matlab/bin/glnx86/atlas_P4SSE2.so:
undefined symbol: s_copy
libmwlapack: loading lapack.so

This error is independent of whether or not I compile atlas myself or
use the binaries provided by the atlas folks.

The symbol s_copy is defined in
/usr/lib/gcc-lib/i386-redhat-linux/2.96/libg2c.a, but including the
objects from that library in atlas_P4SSE2.so only introduces other
undefined symbols.

Is this a glibc compatibility problem? Is there an easy fix? Should I be
patient and just wait for release 12.1, whenever that will come out, in
order to get my incremental speed improvements?

Thanks,
Ran

--

Structural Acoustics Branch                    (757)-864-5266
NASA Langley Research Center               FAX (757)-864-8823

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