I would say it is defiantly worth it, since it looks like your P4 is not
doing P-1 by doing this first elsewhere you may find a factor during P-1 and
save your self a whole 33M LL test.
Quite simple, stop your clients, add the worktodo line for your next 33M
exponent to your Linux client.
I would use the undoc 'SequentialWorkToDo=0' setting on your Linux box which
causes the client to do all factoring and P-1 testing on LL exponents before
all other work.
Once P-1 has completed on your next exponent stop the client again and move
it back to the P4.
You may want to drop the number of days queued setting on the P4 so it does
not get another exponent in the meantime.
Note : If you have too much work queued to the Linux box already it may
release the exponent rather than processing it when you add it to the
worktodo, to get around this you could backup your existing worktodo and
create a new one temporarily.
This process is similar to one we are implementing for our team to
pre-factor 33M exponents for our team members with P4's which we have
discussed with George.
regards
Rob Reid
www.teamprimerib.com
-----Original Message-----
From: Gerry Snyder
Sent: 14 January 2002 05:38
To: mer
Subject: Mersenne: Optimizing P4 usage
{....]
My question is whether it is worth the trouble to shift the trial and
P-1 factoring of the next one to one of the P3 processors (the non-LL
one). It might lead to one extra LL test in two years.
[....]
_________________________________________________________________________
Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm
Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
