mersenneforum.org Resuming L-L with a clean hard drive
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 2004-12-31, 23:51 #1 Unregistered   492710 Posts Resuming L-L with a clean hard drive I was peacably testing 2070457. According the assignment file, Gimps checked my progress about 4:10 yesterday morning and found I was at iteration 2 million +. When I came to the computer after breakfast, my hard drive was dead (I trust entirely coincidentally!). Anyway I have a new hard drive installed. How do resume testing my number, preferably not at the beginning? Thanks!
2005-01-01, 00:46   #2
Xyzzy

"Mike"
Aug 2002

27×61 Posts

I hope you have a backup!

This is one reason I use "InterimFiles" every 1e6 iterations... I then back up the interim files periodically...

Quote:
 You can have the program generate save files every n iterations. The files will have a .XXX extension where XXX equals the current iteration divided by n. In prime.ini enter: InterimFiles=n
If you have a backup there will be a regular save file and a backup save file as well...

Worst case you can restart your work by recreating the worktodo.ini file...

 2005-01-01, 00:59 #3 Xyzzy     "Mike" Aug 2002 27×61 Posts Assuming this is you: Code: 27070457 68 2056703 11.3 37.2 86.2 30-Dec-04 04:48 20-Dec-04 17:22 danjmi CA3C1D458 Then (I think!) you want this in your worktodo.ini file: Code: Test=27070457,68,0
 2005-01-01, 01:25 #4 markr     "Mark" Feb 2003 Sydney 10001011112 Posts Mmm, the boundary between 67 & 68 is 28130000, so the line in your worktodo.ini should be Code: Test=27070457,67,0
 2005-01-01, 04:24 #5 Mike   May 2004 Vancouver, Canada 22×52 Posts Not necessarly... The exponent might have been factored up to 2^68, therefore it's better to stick to what Primenet is telling us, which is 68.
 2005-01-01, 05:46 #6 markr     "Mark" Feb 2003 Sydney 13×43 Posts Unfortunately Primenet is misleading us. The user report or status.txt "fact bits" is one higher than the TF level if a p-1 test has been done. I'm pretty sure I read some post saying that it actually adds 0.5 internally, and then the report rounds up... Anyway, for the machine I'm on now, the worktodo.ini has Test=17813597,65,1 but my user report has 17813597 66 8958364 67.9 12.0 72.0 29-Dec-04 04:27 22-Oct-04 06:14 new Also, the latest nofactor file has no 27M exponents TF'd above 2^67, although it's not as current as a primenet report. It won't affect anything anyway, since the p-1 step has been done. Last fiddled with by markr on 2005-01-01 at 05:50
 2005-01-05, 14:16 #7 garo     Aug 2002 Termonfeckin, IE 2×5×251 Posts So the correct worktodo entry is: Test=27070457,67,1

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