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Blitz Support : |
From: Julian Cummings (cummings_at_[hidden])
Date: 2005-05-06 19:38:18
Hi Michael,
We should be able to resolve these problems you are having. Which version
of Mac OS X and which version of the compiler are you using? Have you tried
building any of the benchmarks codes in blitz and running them to see what
kind of performance they show? (Note that these benchmarks compare to
Fortran loops and therefore require a Fortran compiler such as gfortran or
g95.) I remember having similar problems using blitz with gcc on a Mac OS X
machine, running out of memory or taking forever to compile. But the newer
versions of the compiler have improved things quite a bit. Also, if you're
willing to pay some money, Absoft sells a version of the IBM XL C++ compiler
for Mac OS X. I think this compiler has superior optimization capabilities
to those of gcc-3.x.
Regards, Julian C.
Dr. Julian C. Cummings Office: PB-111
Caltech/CACR, MC 158-79 Phone: 626-395-2543
1200 E. California Blvd. Fax: 626-584-5917
Pasadena, CA 91125
> -----Original Message-----
> From: blitz-support-bounces_at_[hidden]
> [mailto:blitz-support-bounces_at_[hidden]] On Behalf Of
> Michael Cass
> Sent: Wednesday, April 27, 2005 6:19 AM
> To: blitz-support_at_[hidden]
> Subject: [Blitz-support] blitz++ on OSX
>
> I have been trying to get code I have running on an
> intel/linux box to run efficiently on a powermac G5. I had
> previously got as far as make lib in the blitz install
> process and left it there. My code compiles and runs but
> extremely slowly (even with every available optomization I
> could find turned on).
> make-examples either gives an error about lack of virtual
> memory (the machine has 2Gb of ram so memory shouldn't be a
> problem) or complains about undeffined symbols for everything
> from std:: and blitz::
> Is there some problem with templates under osx? or am I
> missing a simple option that would fix things?
> thanks in anticipation.
> Michael
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