56.5M-59M

ThomRuley · 2003-05-30, 20:22

I was wanting to participate in this part of the Mersenne search. I prefer factoring assignments and this would give me a lot of them. I looked at the ranges available and found that 56.5M-59M is available. Is anyone looking there already? If not, I'm there (as soon as I finish the LL my computer is already doing 8) )!

garo · 2003-05-30, 22:30

Can you please specify what bits you are going to do this range to? Remember that on a P3 1Gig doing a 1M range to 2^60 takes about 3 months. So depending on the horsepower you have it may be a good idea to take a smaller range.

ThomRuley · 2003-05-31, 00:28

I was planning to start off at about 60 bits. After this had eliminated some exponents, I was planning to test the remaining exponents to 65, and so on up to about 75 bits.

Paring the range down a bit does look like a good idea, since my estimates (after I asked for that range) had me doing this for ~25 years up to 65 bits

. So I think I will take the range only up to 57M. Do you know of any problems with this? If not, I'm in with you guys looking for factors. If so, please suggest another range.

garo · 2003-05-31, 02:07

Ok great! I'll put you down for 2^60 for 56.5M to 57M. Take it in small chunks rather than big ones because 1 million range usually has 25,000 odd exponents.

cheesehead · 2003-05-31, 02:11

Quote:

Originally Posted by ThomRuley

my estimates (after I asked for that range) had me doing this for ~25 years up to 65 bits

So you have about a P4 2.5-3GHz system?

ThomRuley · 2003-05-31, 13:32

No, actually it's a 900MHz Athlon. The 25 years is probably a bad extimate. Thanks for letting me join this! :D 8)

2003-05-30, 20:22	#1
ThomRuley May 2003 2×3×7² Posts	56.5M-59M I was wanting to participate in this part of the Mersenne search. I prefer factoring assignments and this would give me a lot of them. I looked at the ranges available and found that 56.5M-59M is available. Is anyone looking there already? If not, I'm there (as soon as I finish the LL my computer is already doing 8) )!

2003-05-30, 22:30	#2
garo Aug 2002 Termonfeckin, IE 2⁴·173 Posts	Can you please specify what bits you are going to do this range to? Remember that on a P3 1Gig doing a 1M range to 2^60 takes about 3 months. So depending on the horsepower you have it may be a good idea to take a smaller range.

2003-05-31, 00:28	#3
ThomRuley May 2003 2×3×7² Posts	I was planning to start off at about 60 bits. After this had eliminated some exponents, I was planning to test the remaining exponents to 65, and so on up to about 75 bits. Paring the range down a bit does look like a good idea, since my estimates (after I asked for that range) had me doing this for ~25 years up to 65 bits . So I think I will take the range only up to 57M. Do you know of any problems with this? If not, I'm in with you guys looking for factors. If so, please suggest another range.

2003-05-31, 02:07	#4
garo Aug 2002 Termonfeckin, IE 2⁴×173 Posts	Ok great! I'll put you down for 2^60 for 56.5M to 57M. Take it in small chunks rather than big ones because 1 million range usually has 25,000 odd exponents.

2003-05-31, 13:32	#6
ThomRuley May 2003 2×3×7² Posts	No, actually it's a 900MHz Athlon. The 25 years is probably a bad extimate. Thanks for letting me join this! :D 8)