Re: Mersenne: Good news for Pentium 3 and Celeron 2 owners

2001-06-18 Thread mohk
At 03:26 18.06.2001, you wrote: Hi all, Now the bad news. The Athlon also supports these memory prefetch instructions but the one user who tried it reported no gain. Also, the new executable may also be slightly slower on the P-II and Celeron 1 as it must ignore these prefetch

Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread Eric Hahn
Hi All, I downloaded and ran the new v21a and did some timings on several different machines and compared them to timings done on v19 and v20... I ran the timings on each version for 100 screen outputs at 100 iterations per screen output... for a total of 1 iterations... and then

RE: Mersenne: Good news for Pentium 3 and Celeron 2 owners

2001-06-18 Thread Rick Pali
From: George Woltman I've added these hints to prime95 and am getting about a 20% performance boost. My turn to report! :-) v20v21 -- p3/850 0.301 0.215 p3/515 0.398 0.309 The 515 is a slightly overclocked 500Mhz processor. Both machines are running

RE: Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread Matt Goodrich
H, I am not getting any performance increase on my 2 Athlon's here, and I am 99% sure they are Thunderbirds. I just tried this new executable on 7 machines. Here are the numbers. PentiumIII 450MHz Testing M12441xxx Iteration Times V.20V.21 0.330 0.255 PentiumII

Re: Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread Michael Bell
H, I am not getting any performance increase on my 2 Athlon's here, and I am 99% sure they are Thunderbirds. It appears I was wrong, the prefetch is available on all Athlons not just Thunderbirds, so it must be something else. Michael.

Re: Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread Mikus Grinbergs
One more possibility to keep in mind for Athlons: BIOS level (and perhaps also which motherboard). Don't have windows, so can't try the optimized prime95, but have noticed on timing runs with the V20 mprime that my new (ASUS A7M266) Athlon is now 2% slower than when I first got it. The only

Re: Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread George Woltman
Hi, At 01:43 AM 6/19/2001 +0100, Michael Bell wrote: I am not getting any performance increase on my 2 Athlon's here, and I am 99% sure they are Thunderbirds. Some Athlons are seeing a speed increase others are not. The two that I know are not enjoying a speed increase are running under

Re: Mersenne: Prime95 - V21.1.1 aka v21a

2001-06-18 Thread Nick Glover
My 1 GHz Thunderbird in Win98 SE showed speed improvements without putting anything in the .ini file. I used the Advanced-Time option and noted the following two anomalies: 1) At 512 KB and only 512 KB, the program returned the following along with my timings: timer 0: 1100364 timer 1: