64-bit GMP on Apple G5/OS X v10.4

pbmcl at netscape.net pbmcl at netscape.net
Sun Apr 24 08:18:01 CEST 2005

Apple's latest version of OS X (10.4 Tiger, to be released April 29th) includes support for true 64-bit operation on its G5 models which use the PowerPC 970 processor. Using a pre-release version of Tiger, I have been able to build and use a 64-bit version of GMP-4.1.4 without problems. The 64-bit build of Paul Zimmerman's GMP-ECM program runs  2.2 to 2.3 times faster than the 32-bit version.

The attached G5_64bit_files.zip archive contains the following:
 a file named G5_64bit_install.txt which gives the overall procedure with build instructions,
 a file named G5_64bit_patches.txt which has all of the configuration and code patches needed for existing GMP-4.1.4 files.
 a folder named "970" which contains ten new files specifically for the 970.

Note: I am not affiliated in any way with the GMP developers. If you have questions or run into any problems please contact me, not them.

Phil McLaughlin

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