On 27 Feb 2005, at 14:46, Joe Landman wrote: > > > Michael Maibaum wrote: > >> For Panther as far as userland tools are concerned, it is a 32 bit OS >> (i.e. each process can access up to 4GB of RAM, but no more, without >> the usual 32bit tricks). >> For Tiger - most stuff you'd want to run on a cluster will be 64bit. >> That is the kernel and most userland tools will be 64 bit, however >> most 'high level' toolkits (e.g. Cocoa) will still be 32bit. I don't >> see many Carbon/Cocoa apps being run on a cluster needing large >> memory spaces, so that probably doesn't matter :) > > Cool. What compilers will support this? gcc certainly, what about > the IBM compiler (generating 64 bit code)? As you say, gcc for sure. I presume XL{F|C} will also - derived from POWER I see no reason why they won't but I don't have any facts. Michael