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Greg
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Message 880 - Posted: 28 May 2012, 4:46:47 UTC

10,305+ is now factored into 75-digit and 135-digit prime numbers. The sieving of 2,1061- is nearly complete. (Really this time!) The sieving of B200 is going well, and once the sieving of 2,1061- is done the V5 applications will also be used to sieve B200. Let's get B200 done as quickly as possible!

Profile Carlos Pinho [TSBTs Pirate]
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Message 882 - Posted: 28 May 2012, 11:02:42 UTC
Last modified: 28 May 2012, 11:22:05 UTC

Good to know that V5 application will be switched to B200. Right now the lasievef users are at q=179620019. Will lasievef be used until q=420M or in parallel with V5 or V5 will only be used beyond q=420M?
Greg, where are you going to run 2,1061- LA? How many nodes will you be using? This is the type of thing people should know about as in mersenneforum.

Take care,

Carlos

Greg
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Message 886 - Posted: 29 May 2012, 17:12:10 UTC - in response to Message 882.

Both will be run in parallel on B200. This will hopefully finish it as quickly as possible.

The postprocessing for 2,1061- is a bit complicated. I anticipate that a portion of it will be run on Trestles at the San Diego Supercomputing Center, and that a portion will be run on Lonestar at the Texas Advanced Computing Center. It will likely use 576 cores, which is 18 32-core nodes at Trestles and 48 12-core nodes at Lonestar.

Greg
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Message 888 - Posted: 2 Jun 2012, 0:33:26 UTC - in response to Message 887.

Yes, really this time. :-)

Fri Jun 1 10:06:56 2012 matrix is 90270707 x 90270879 (39725.3 MB) with weight 11308345602 (125.27/col)
Fri Jun 1 10:06:56 2012 sparse part has weight 9420766130 (104.36/col)

Message boards : News : 10,305+ factored


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