Intermediate Files

[ndpowell]

During P-1 factoring, Prime95 is unable to resume where it left off if something happens. It just starts over. Based on what I read in the help file, I should be able to resume from anywhere in the process should it be interrupted. What am I missing?

[dsouza123]

It is definitely the case in both TF and LL/DC/10MLL
that intermediate files are created so you can stop Prime95
and start the program again later.

[dsouza123]

Decoding of the shorthand I used in the previous post.

TF means Trial Factoring test

The following are really the same test
just of different sized or previously tested numbers.

LL means Lucas-Lehmer test
DC means Double Check of Lucas-Lehmer test
10MLL means Lucas-Lehmer test of a 10+ million digit number

[geoff]

Originally Posted by ndpowell

During P-1 factoring, Prime95 is unable to resume where it left off if something happens. It just starts over. Based on what I read in the help file, I should be able to resume from anywhere in the process should it be interrupted. What am I missing?

Prime95 does create intermediate save files during the P-1 test (provided there is enough disk space), the file name begins with an m followed by a code for the exponent. However the message Prime95 prints when it resumes from a P-1 save file is the same as when it starts the test from the beginning, which is a bit confusing, but if you check the progress percentage you can see that it has not started from the beginning.