Primo Top-20 |
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The certification of this number was done by Norman Luhn with Primo 3.0.7 in about 119 days!
In order to get such an amazing running time,
Norman split temporary certificates, ran several Primo processes on a PC with a multicore processor (to parallelize the most
possible work) and, finally, rebuilt the whole certificate by cutting and pasting each test. A very smart certification.
[1] Primo is the successor of Titanix, which one is no more distributed.
Since 2003, 64-bit multiprocessor versions of ECPP have established new records (notice that, up to now, these programs have never been released by their respective authors). Links to some pages reporting primes certified with Primo:
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URL: http://www.ellipsa.eu/public/primo/top20.html (hosted by Online) Last update February 6, 2010 Copyright © 2010, Marcel Martin. All rights reserved. |