Mersenne: weird behaviour Prime 95
Hi, My Windows95 system ran Prime 95 v20.3.1 for five weeks without any troubles of any kind. I am back for about a week, and have noticed that whenever I restart Windows95 Prime 95 runs fine for a couple of hours and than slows down enormously. The machine is usually unattended. Weird enough the system monitor reports processor activity to have gone to a very low level, the machine still functions seemingly normal. If the same program is started up using Windows2000 installed on the same machine, Prime 95 keeps functioning normal. Any ideas where to start looking for the troublecause? There are no energysaving programs installed other than switching of the monitor. Restarting Prime 95 gets the system monitor reporting 100% processor usage, however taking an iteration 40 times as much time as normal, quitting Prime95 then gets processor activity back to zero! YotN, Henk Stokhorst. _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.exu.ilstu.edu/mersenne/faq-mers.txt
Mersenne: Final Fix For Prime95 On The Compaq Presario 7998
For The Compaq Ath(lon)ete: In a couple of previous emails, I mentioned the slowdown of the (Athlon) Compaq Presario 7998 in factoring and other Prime95 computations. The parasitic process, if that is what it was, never showed up on my PV 2000 list of contendahs, but did go away briefly when the modem began dialing out. By accident I set Prime95 priority to "real," and the timing dropped to what it should be. At 1GHz, a factor run from 2^53 through 2^65 takes just 26 hours. The mouse pointer still moves, too. Best Wishes, Stefanovic
Re: Mersenne: weird behaviour Prime 95
Henk Stokhorst wrote: whenever I restart Windows95 Prime 95 runs fine for a couple of hours and than slows down enormously. The machine is usually My friend's Win98 machine does the same thing. She went on vacation for a week and when she returned a factoring iteration that use to take about 13 seconds now took over 170. After restarting the fast performance returned (for a while). The machine is an IBM Aptiva with 450MHz PII. Cheers... Russ _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.exu.ilstu.edu/mersenne/faq-mers.txt