[SciPy-user] Installation on dual opteron ...
stephen.walton at csun.edu
Sat Sep 24 00:20:24 CDT 2005
> and would like to know, if the patches
> by Ravikiran Rajagopa
> (including the c versions of d1mach.f, r1mach.f and i1mach.f,
> posted in
> have been applied to svn?
As far as I can tell, the answer is no. As I did mention, I think the C
versions of ?1mach need a lot more testing. There is also a problem I
just found with Ravi's patch: gfortran is used to compile and link
absoft_version.so but against -lg2c rather than against -lgfortran.
>- Would you recommend to use
> - gcc, Branch status 2005-09-13 (frozen for 4.0.2 release)
> - or GCC 3.4.4 (released 2005-05-18)
> instead of gcc 4.0.1?
I would strongly recommend 3.4.4 and g77. Since gfortran is part of the
gcc4 suite, I'm not sure what will happen if you use gcc 3.x but
gfortran instead of g77.
> (Would choosing gcc 3.4.4 have any negative impact on 64Bit
My tests show that gfortran/gcc4 do in fact have some performance
advantages over gcc3/g77, but I've only looked at the i386 platform.
> F77=gfortran python setup.py install | tee ../scipy_install_log.txt
I think this should be
python setup.py config_fc --fcompiler=gfortran install
if you're using Ravi's patches.
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