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Old 2019-05-06, 20:46   #12
ewmayer
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Sep 2002
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Quote:
Originally Posted by M344587487 View Post
The most practical way to "combine" PCs for primality testing is to use two similarly specced PCs and run the same test independently. You'd do this to catch and recover from errors which are much more likely to occur with larger exponents by comparing interim results. Even that is of dubious merit, particularly now that PRP and better error detection is used for first time tests.
Note that a secondary verification *can* readily be split across multiple independent machines, if the first run saves interim checkpoint files at regular intervals. Then each DC machine can start with one of said files, run to the next checkpoint iteration, if the result matches that of the first run there, and all said subinterval-DCs match thusly, one has a valid DC.
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