curios question...
 

I 've seen that Mersenne primes are checked at least 3 times:

1 by the discoverer
1 by Tony Reix
1 by Guillermo Ballester

No other checks are done ?
How long does the fastest supercomputer (136800 GigaFlops) take to verify the largest Mersenne known (with prime95) ?

Thanks

I don't know the answer to your question. But I noticed that the blue supercomper you're referring to has DOUBLED in capacity!!! Check it out :w00t:

[URL=http://www.localtechwire.com/article.cfm?u=12630]http://www.localtechwire.com/article.cfm?u=12630[/URL]

Doubled ...
 

[QUOTE=Bundu]I don't know the answer to your question. But I noticed that the blue supercomper you're referring to has DOUBLED in capacity!!! Check it out :w00t:

Yes , now it should be 287,334 GFlops/s :shock:
(they didn't build the entire computer before ... )
If we know how many flop a 10 million digit prime requires (totally) we can compute

287334 / 10-million-prime-flops = how many seconds Blue Gene L requires
:huh:
Why don't GIMPS or somebody borrows this supercomputer for one day and check as many exponents as possible ?

GIMPS current speed: 19686 Gflop/s
Blue Gene L speed: 287334 GFlop/s

Blue Gene L = 14.595 * GIMPS

:shock: :shock: :shock:

It doesn't work like that. Using Gigaflops to compare performance between totally different architectures is for the most part meaningless.

Also, I think it is very unlikely that Prime95 has been optimized to work well on Blue Gene.