Hi John,
At 11:08 AM 9/11/99 -0700, John R Pierce wrote:
>Iteration: 6742784/7817869, ERROR: ROUND OFF (0.4086303711) > 0.40
>Possible hardware failure, consult the readme file.
>Continuing from last save file.
>[Sat Sep 11 11:04:20 1999]
>Disregard last error. Result is reproducible and thus not a hardware
>problem.
>Iteration: 6742912/7817869, ERROR: ROUND OFF (0.4086303711) > 0.40
>Possible hardware failure, consult the readme file.
>Continuing from last save file.
This is not a bug. Brian was right that v19 would ordinarily use a 448K
FFT wheras v18 used a 384K FFT. However, v19 is finishing off your
exponent using a 384K FFT.
You now see why I was a little more conservative with the FFT crossover
points. Your 0.4086 error is not much greater than 0.4 and not near
the 0.5 error that would corrupt your result.
I'd continue onward with your test - you probably would have gotten
the same error in version 18.
Regards,
George
_________________________________________________________________
Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm
Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers