LLR4 and PRP3 bugs
 

PRP3 and the newest LLR(P4) versions are buggy and - under certain circumstances - miss primes! :cry:

[url]http://www.mersenneforum.org/showthread.php?p=40739#post40739[/url]

George is currently fixing PRP3 (see #41 - fortunately, [url="http://www.nhc.noaa.gov/ftp/graphics/AT09/refresh/AL0904W+GIF/150858W.gif"]Ivan[/url] missed him; hopefully, [url="http://www.nhc.noaa.gov/ftp/graphics/AT11/refresh/AL1104W5+GIF/150908W5.gif"]Jeanne[/url] does so, too...).
For the time being, I switch my PC over to sieving until a new version is out.

Chances are the circumstances that lead to errors can be examined, so that only a fraction of the numbers tested by these clients have to be rechecked. :yucky:

This project is immune to the PRP3 bug. Only 7-9 digit k values are problematic.

The LLRP4 bug might affect this project. Only Jean Penne knows.

As far as i know we have never received results from LLRP4. So we should be save from that side also.

Lars

[QUOTE=Prime95]This project is immune to the PRP3 bug. Only 7-9 digit k values are problematic.[/QUOTE]

Alright, then I'll restart PRPing. Thanks for that information, George!
:banana:

The fixed prp3 is available.