View Single Post
Old 2016-07-17, 14:36   #1
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

484810 Posts
Default ecm with Fermat numbers

Question: with regard to both mprime and gmp-ecm, is it faster running the Fermat number "as-is", or divided by its known factors?

IIRC, mprime was faster using the standard notation and providing the known factors either on the worktodo.txt line or on the lowp.txt file, while gmp-ecn was faster as the number to test grew smaller.

Is it still correct?

Luigi

Last fiddled with by ET_ on 2016-07-17 at 14:37
ET_ is offline   Reply With Quote