Hi all,
At 08:13 PM 7/20/99 -0700, Daniel Swanson wrote:
>Iteration: 6128000/7812379, ERROR: ROUND OFF (0.4026489258) > 0.40
>[Tue Jul 20 16:35:33 1999]
>Disregard last error. Result is reproducible and thus not a hardware
problem.
>I consulted the readme file, but it wasn't very helpful. What is a
>"ROUND OFF" error? While it's nice that it's reproducible, will it
>invalidate the result of this LL test? Does the fact that this
>exponent (7812379) is so close to the FFT size breakpoint (7820000)
>make this type of error more likely?
Yes, the fact that you are testing an exponent near the FFT size breakpoint
makes this error much more likely. It will not invalidate the result of
your LL test.
Note that in version 19, I've decided to be a bit more conservative with
the FFT breakpoints. Your exponent will be double-checked with a larger
FFT size (if the double-checker uses v19).
Regards,
George
P.S. Double-checking has not revealed any problems near the upper ranges
of any FFT sizes. The more conservative FFT breakpoints will reduce the
chance of an incorrect result due to an excessive convolution error.
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