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)? -- Joseph Landman, Ph.D Scalable Informatics LLC, email: landman at scalableinformatics.com web : http://www.scalableinformatics.com phone: +1 734 786 8423