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-   -   the 95 in prime95 (https://www.mersenneforum.org/showthread.php?t=22241)

mrsteve0924 2017-04-28 15:44

the 95 in prime95
 
i've searched all over. cant seem to find out why the 95 in prime95. does it have anything to do windows95?

retina 2017-04-28 16:21

[QUOTE=mrsteve0924;457794]does it have anything to do windows95?[/QUOTE]Yup.

ET_ 2017-04-28 16:21

[QUOTE=mrsteve0924;457794]i've searched all over. cant seem to find out why the 95 in prime95. does it have anything to do windows95?[/QUOTE]

IIRC yes. Although the earlier versions could be run on Windows 3.1(1), the first stable and orgainzed release of the software used Windows95 OS to avoid slowing down the system.
I still remember running it on Windows 3.11 for factoring. I was on a 66 MHz Intel 80486

Batalov 2017-04-28 17:34

[QUOTE=mrsteve0924;457794]i've searched all over. cant seem to find out why the 95 in prime95. does it have anything to do windows95?[/QUOTE]
1995 was the year when the program [URL="https://en.wikipedia.org/wiki/Prime95#Release_history"]was written[/URL]. First release was on Jan.3, 1996, but of course there were pre-releases, weren't there?

[SPOILER]Win95 also happened to be released in 1995, but that's just a coincidence. Also hailing from 1995 are "Gangsta's Paradise", "Waterfalls" ... but also "Leftism" and "The Bends"![/SPOILER] :rolleyes:

mrsteve0924 2017-04-28 18:58

thanks everyone fro the quick replies

Harrywill 2017-05-02 05:12

the 95 in prime95
 
1 Attachment(s)
Read Prime95 Some Errors In Computer

kladner 2017-05-03 03:54

[QUOTE=Harrywill;458091]Read Prime95 Some Errors In Computer[/QUOTE]
Could you clarify? I see the errors. They probably mean that [I]something[/I] has to slow down. Figuring out what that [I]something [/I]is, is the next step. Rounding errors implicate the CPU. Your temperatures are excellent, so overheating is not the issue. This suggests that the CPU might need a slower clock. Or it might take a higher Vcore to stabilize at the current frequency.
Memory can also be an issue.
I don't know what your CPU frequency is, but try dropping it 200-300 MHz. Then run the Torture Test again.

Batalov 2017-05-03 04:40

[QUOTE=kladner;458165] Your temperatures are excellent, so overheating is not the issue. [/QUOTE]
The temperatures that we see in the snapshot are already [I]after[/I] two of the four cores are idle, so the temperatures are not necessarily excellent when the load is 100%.

The advice to step down and retry is sound.

kladner 2017-05-03 14:41

[QUOTE]The temperatures that we see in the snapshot are already [I]after[/I] two of the four cores are idle, so the temperatures are not necessarily excellent when the load is 100%.[/QUOTE]
Good point, which never occurred to me.

Gordon 2017-05-05 22:43

[QUOTE=ET_;457800]the first stable and orgainzed release of the software used Windows95 OS to avoid slowing down the system.
[/QUOTE]

That's not actually true, I read about the project in Personal Computer World (defunct UK mag) in Oct(?) 1996, it ran perfectly well on win 3.1, well enough to discover the 36th Mersenne prime...

ET_ 2017-05-10 11:45

[QUOTE=Gordon;458404]That's not actually true, I read about the project in Personal Computer World (defunct UK mag) in Oct(?) 1996, it ran perfectly well on win 3.1, well enough to discover the 36th Mersenne prime...[/QUOTE]

Sure, but in 1996 there was no Primenet, and all the reservations were done via email (that's the meening of my use of "organized").
I was one who ran some factorization work with Windows 3.1 on a 80486 DX/66.
The program worked fine, but the whole system wa not responsive because Windows 3.1 adopted a cooperative (non preemptive) multitasking, allowing just one job in foreground to work at a time.
That was the reason of my use of "stable".


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