Up until a few weeks ago, I had one Pentium 200 machine doing LL
testing, and one Pentium 120 doing factoring. I noticed that the P120
generally completed factoring an exponent in roughly 2 days.
A few weeks ago, after growing tired of my mother worrying about her
486DX2-66 machine blowing up on 1/1/00, I gave in and let her have my
P120 machine (with a Y2K complient bios) in exchange for her 486
machine. I now have this 486 machine doing the factoring that was
being done by the P120. Generally, it is taking almost two weeks per
exponent.
Therefore, my question is even with this two week time, is the 486
machine doing "useful work" for GIMPS, or is it merely heating up the
CPU? I ask this because in a couple or three weeks I may have access
to a quantity (30 to 75) of 486DX-50 machines. If these machines can
contribute useful work to GIMPS, I will happily give them each a mouthful
of exponents to factor :-)
David
[EMAIL PROTECTED]
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