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Old 2021-08-12, 23:01   #1
tuckerkao
 
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Default Windows Froze while Running Prime95

My PC froze once while running the PRP test on Prime95, it passed the next Gerbicz error check after the restart. I'm wondering whether everything went through okay.

Since PRP still has the 0.2% chance being wrong, will those only occur when a Gerbicz error shows up?
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Old 2021-08-13, 01:11   #2
kriesel
 
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Quote:
Originally Posted by tuckerkao View Post
PRP still has the 0.2% chance being wrong
What do you base that claim on?
GEC computation is about a 0.2% computational overhead in a PRP run (depending on block size etc), but its error rate per completed test is much smaller than that, perhaps <50ppm. PRP guarded by a properly implemented GEC is so unlikely to yield a wrong final PRP test result that's undetected as wrong, that we haven't accumulated sufficient statistics to compute an accurate net error rate for PRP/GEC. It's that small, orders of magnitude smaller than LL error rates. LL on the other hand is completed and reported in error ~1%/wavefront test with use of the Jacobi symbol check, or ~2% without it, and ~proportional to run time, so 100Mdigit LL is in error ~20.% of the time, and 300Mdigit is estimated to be in error ~90% of the tests, unless two parallel tests are run with frequent interim res64 comparisons performed manually.

Last fiddled with by kriesel on 2021-08-13 at 01:13
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Old 2021-08-13, 03:59   #3
tuckerkao
 
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It looked like the PRP test was very different than LL. I only wondered whether I needed to restart the PRP test after Windows 10 froze to a bluescreen while Prime95 was running.
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Old 2021-08-13, 06:03   #4
Prime95
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Quote:
Originally Posted by tuckerkao View Post
I only wondered whether I needed to restart the PRP test after Windows 10 froze
No restart needed.
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