mersenneforum.org - View Single Post - GMP-ECM fails on step 2 with B2 > 96M

Brian Gladman · 2010-10-30, 14:02

Hi All,

Yes, this is a bug in compiling GMP-ECM on 64-bit systems.

Some of the code assumes that a 'long' is 64-bits on such systems but this is not true on Windows (where a 'long' is 32-bits).

I have a fix that I will pass to Jeff so that he can update the binaries.

Brian

2010-10-30, 14:02	#7
Brian Gladman May 2008 Worcester, United Kingdom 20E₁₆ Posts	Hi All, Yes, this is a bug in compiling GMP-ECM on 64-bit systems. Some of the code assumes that a 'long' is 64-bits on such systems but this is not true on Windows (where a 'long' is 32-bits). I have a fix that I will pass to Jeff so that he can update the binaries. Brian