Guido,
How much RAM is in your machine? Those large exponents can easily use a
large chunk of memory when doing the P-1 testing, if I recall correctly. A
relatively small amount of RAM could cause some serious paging to occur if
it's running low.
And it's normal for it to do a new test for a new FFT size. Your local.ini
file should have lines in there indicating which FFT sizes it's done a test
on already. I'd recommend letting it run those tests so it can make sure
the boundaries are working right on your machine.
Aaron
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-- Original Message --
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Don't like to take up your time, but the behaviour of Prime95 on a 750@795
Duron, P-1 factoring on 33.3mio exponent (B1=350000 and B2=4025000), is
quite strange. The Duron completed the stage 1 without any problem, but
during the stage 2 the time per iteration has slow down a lot, from 0.650
sec/it to many minutes for just one iteration.
Above all the pc is unusable, so I've decided to edit manually worktodo.ini:
from Test=33306743,68,0
to Test=33306743,68,1
to force prime95 to skip the factoring stage when the process was done for
about 30%
(The intermediate file mX306743 sizes 8,132 KB).
I've tried to put everything on another machine but with no results: the
behaviour was the same.
Skipping the P-1 factoring stage shouldn't invalidate the LL test, as George
says in undoc.txt:
You can force prime95 to skip the trial factoring step prior to
running a Lucas-Lehmer test. In prime.ini add this line:
SkipTrialFactoring=1
By the way: I've done it but apparently nothing has changed. If I've
understood properly, adding this line is like to manually edit worktodo.ini.
Isn't it?
Is it better if I force prime95 to start p-1 factoring from zero once again,
hoping any problem occurs this time? What may be the problem? Has anybody
ever observed something like this?
Last question: is it normal that prime95 runs a self test each time it is
going to test with different FFT sizes?
Thank you in advance for answering and best regards from Italy.
Guido72
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