20030113, 01:35  #1 
Sep 2002
2×3×139 Posts 
Self Test going on way too long HELP HELP HELP
The Help files with the program say that there are 16 self tests. I just transferred my Prime 95 directory to my new faster computer and now it is doing the self test again, but there are WAY OVER 16 tests. It's over 200 now. What's wrong? My new computer is a 2.4 GHz laptop. I am running the P4 version 22.13 of the software. Help!!!

20030113, 01:40  #2 
Aug 2002
2·3·53 Posts 
Your computer must do a self test for each FFT range. It will do as many tests as it takes in ONE HOUR.
Simply put, your machine will run a self test for one hour when it encounters a new FFT range. 
20030113, 01:53  #3 
Sep 2002
1110101_{2} Posts 
just curious, does that mean that there are 16 tests in each range that are looped for an hour, or 16 ranges with X tests looped for an hour?

20030113, 02:00  #4 
Sep 2002
2×3×139 Posts 
I never would have believed GIMPS could run this fast, but on my old machine each iteration used to take about 0.2 or 0.3 seconds. now it takes 0.028 seconds. This is incredible.

20030113, 10:18  #5 
Aug 2002
2×3×53 Posts 
It tests the 16 FFT's in a loop.

20030113, 13:27  #6 
Dec 2002
Frederick County, MD
370_{10} Posts 
I think I'm a little lost here. Are there 16 different FFT lengths that the program tests, one hour each, in effect reapeating every 16 hours? Or are there 16 different exponents that are tested in each FFT length?

20030113, 17:29  #7 
Sep 2002
75_{16} Posts 
woah. We're just talking about the selftest it does for each FFT range. There's 16 different exponents and it goes through 400 (or something) iterations of each. When the test finishes all 16, it loops and does them again until an hour is completed. The point is for it to try to make your computer screw up in that hour which would tip you off to a problem in that range.

20030113, 17:51  #8 
Dec 2002
Frederick County, MD
2·5·37 Posts 
Along the lines of torture tests, will running the test find errors in hardware other than the CPU or memory? And what kind of problems in the CPU or memory will cause Prime95 errors?

20030113, 19:40  #9 
P90 years forever!
Aug 2002
Yeehaw, FL
8,039 Posts 
What we have here is a help file bug. Where does it talk about "16 self tests"? I need to know to fix it.
Older prime95 versions had 3 testing modes: the one hour self test when testing an exponent, a menu choice to run all 16 one hour self tests, and a torture test menu choice which continuously ran tests on all 16 FFT sizes. Later prime95 versions dropped the "run all 16 one hour tests" menu choice. It seemed pointless  run the torture test instead. Also, the torture test now tests many more than 16 different FFT sizes. 
20030114, 01:45  #10 
Sep 2002
2·3·139 Posts 
It's in the program's help files for the newest section in the program under the version info links. I hope what I am saying makes enough sense for you to know what I mean.

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
very long int  davar55  Lounge  60  20130730 20:26 
Using long long's in Mingw with 32bit Windows XP  grandpascorpion  Programming  7  20091004 12:13 
I think it's gonna be a long, long time  panic  Hardware  9  20090911 05:11 
How long is too long?  schickel  Lounge  2  20090222 12:31 
How long to use the Prime95 torture test will prove that the system is rock stable ?  Unregistered  Hardware  4  20040909 07:08 