Hi guys,
I now have complete results of this project.
Altogether there were 17 segments of one million iterations each. All
but one of these matched the original run.
There was a mismatch between iterations 8.3 million and 8.4 million.
Rerunning this segment on the original system resulted in an interim
residual which matched the value reported by the user who ran this
segment.
Conclusions:
(a) My system "glitched" once during the original run. Quite honestly
this surprised me as the system is not significantly overclocked, is
well cooled, is fitted with ECC memory and has no history of single-
bit memory errors corrected by ECC. Nor has it ever crashed, hung up
or spontaneously rebooted. Therefore I feel it's more than likely
that the glitch was memory corruption caused by a software problem.
This system is running Windows 2000 Professional ...
(b) There is no evidence of any systematic difference between Athlon
and Intel processor families which might affect the GIMPS/PrimeNet
project.
Thanks again to the participants!
Regards
Brian Beesley
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