On Wed, Jun 4, 2008 at 10:07 PM, David Cournapeau < [EMAIL PROTECTED]> wrote:
> On Wed, 2008-06-04 at 21:38 -0400, Dan Yamins wrote: > > > > > Anne, thanks so much for your help. I still a little confused. If > > your scenario about the the memory allocation is working is right, > > does that mean that even if I put a lot of ram on the machine, e.g. > > > 16GB, I still can't request it in blocks larger than the limit imposed > > by the processor architecture (e.g. 4 GB for 32, 8 GB for 64-bit)? > > Definitely. For 32 bits, it is actually smaller than 4 Gb, because the > whole address range is used by the processus and the OS, and the OS > generally needs at least 1 Gb (I don't know the default for mac os X, > but both linux and windows default to 2 Gb: so a processus cannot use > more than 2 Gb of memory). > > It is not stupid, I think everyone whished it was possible. > Unfortunately, in mac os X case at least, you cannot do it so simply > (yet). > > David > Anne and David, thank you both so much for your very lucid explanations. (I apologize for my ignorance -- with your help and some additional reading, I think I understand how memory allocation works a bit better now.) Best, Dan
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