Hi,
At 05:10 PM 6/11/2001 -0500, C. Daniel Sheets wrote:
>then had 3 more SUMOUT errors, then came these interesting lines:
>
>P-1 found a factor in stage #2, B1=150000, B2=1912500.
>ERROR: Factor doesn't divide N!
>
>Could someone please tell me what these are saying.
The P-1 factoring code thought it found a factor of the Mersenne number.
The program then verifies the factor and unfortunately found that the factor
did not really divide the Mersenne number.
Obviously, you've either found a bug in the code or you've got a hardware
glitch or interference from other software.
>I have since added/reassigned
>the exponent to another of my computers to see if the same thing happens.
Good idea.
>I am suspect of the computer because of the SUMOUT errors and will look at
>heat and memory issues.
Normally, ILLEGAL SUMOUTS are caused by device drivers not properly
saving the FPU state. If you start getting other types of errors, then you
have a real hardware problem.
Regards,
George
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