On Thu, Feb 01, 2007 at 01:33:23PM -0600, Louis Wicker wrote: > Dear list: Hi,
may I suggest you to read this? http://orange.blender.org/blog/stupid-memory-problems It worth a read. David > > I cannot seem to figure how to create arrays > 2 GB on a Mac Pro > (using Intel chip and Tiger, 4.8). I have hand compiled both Python > 2.5 and numpy 1.0.1, and cannot make arrays bigger than 2 GB. I also > run out of space if I try and 3-6 several arrays of 1000 mb or so > (the mem-alloc failure does not seem consistent, depends on whether I > am creating them with a "numpy.ones()" call, or creating them on the > fly by doing math with the other arrays "e.g., c = 4.3*a + 3.1*b"). > > Is this a numpy issue, or a Python 2.5 issue for the Mac? I have > tried this on the SGI Altix, and this works fine. > > If there is a compile flag to turn on 64 bit support in the Mac > compile, I would be glad to find out about it. Or do I have to wait > for Leopard? > > Thanks. > > Lou Wicker > > ------------------------------------------------------------------------ > ---- > | Dr. Louis J. Wicker > | NSSL/WRDD > | National Weather Center > | 120 David L. Boren Boulevard, Norman, OK 73072-7323 > | > | E-mail: [EMAIL PROTECTED] > | HTTP: www.nssl.noaa.gov/~lwicker > | Phone: (405) 325-6340 > | Fax: (405) 325-6780 > | > | "Programming is not just creating strings of instructions > | for a computer to execute. It's also 'literary' in that you > | are trying to communicate a program structure to > | other humans reading the code." - Paul Rubin > | > |"Real efficiency comes from elegant solutions, not optimized programs. > | Optimization is always just a few correctness-preserving > transformations > | away." - Jonathan Sobel > ------------------------------------------------------------------------ > ---- > | > | "The contents of this message are mine personally and > | do not reflect any position of the Government or NOAA." > | > ------------------------------------------------------------------------ > ---- > > > > > _______________________________________________ > Numpy-discussion mailing list > Numpy-discussion@scipy.org > http://projects.scipy.org/mailman/listinfo/numpy-discussion -- David Douard LOGILAB, Paris (France) Formations Python, Zope, Plone, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science
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