Really old Athlons good for FaD

[jasong]

For those of you with old Athlons(in my case, a 500MHz one) or for people who can obtain old computers for crunching, I've got good news.

A little background:

I was wanting to start a computer farm and thought I needed some new computers to do that. Originally, I simply upgraded mine, and since my goals were less lofty back than, I forgot about my old one and upgraded to one that got about 3-4 times as many points. The old one was stored in my brother's room, and since he's gone, I forgot about it. In the middle of May I won a computer in this very forum. In the process of troubleshooting the won computer, we ended up turning on my old one to experiment with networking(this happened because the won computer's troubleshooting requires a video card, which we don't have at the moment). Being an idiot, I installed SOB sieving on it and got a paltry 50 kp/s. I JUST NOW remembered that it gets 45 points(360GFlops) an hour.

So, compared to my 1.75GHz Sempron:

SOB 49 kp/s compared to 440 kp/s (about 9 to 1)
FaD 360 GFlops/Hr compared to 1280 GFlops/Hr (about 3.5 to 1)

Now comes the rhetorical question: Which should I run? :crazy:

I'm now going to go get some stuff and attempt to get TightVNC to work. Wish me luck.

[CaptainMooseInc]

you can't compare the two!!!

Sieving is a lot more intensive than FaD will ever be.

Really just run what you want. Do you want to potentially find cures or rule out numbers to make it easier to find primes?

I got bored with FaD on my AMD Sempron 2800 and dropped it for RieselSieve sieving. I think you should sieve for RieselSieve. I get ~100kp/s. The density for sieving for RieselSieve isn't as deep I believe (around 1-2G). SoB sieving is deeper so you don't get as much kp/s.

I say math project, but not SoB sieving, RieselSieving. Especially since they have that nice little script for reservations. :)

-Jeff

[Lone_Ranger]

Originally posted by jasong
For those of you with old Athlons(in my case, a 500MHz one) or for people who can obtain old computers for crunching, I've got good news.

A little background:

I was wanting to start a computer farm and thought I needed some new computers to do that. Originally, I simply upgraded mine, and since my goals were less lofty back than, I forgot about my old one and upgraded to one that got about 3-4 times as many points. The old one was stored in my brother's room, and since he's gone, I forgot about it. In the middle of May I won a computer in this very forum. In the process of troubleshooting the won computer, we ended up turning on my old one to experiment with networking(this happened because the won computer's troubleshooting requires a video card, which we don't have at the moment). Being an idiot, I installed SOB sieving on it and got a paltry 50 kp/s. I JUST NOW remembered that it gets 45 points(360GFlops) an hour.

So, compared to my 1.75GHz Sempron:

SOB 49 kp/s compared to 440 kp/s (about 9 to 1)
FaD 360 GFlops/Hr compared to 1280 GFlops/Hr (about 3.5 to 1)

Now comes the rhetorical question: Which should I run? :crazy:

I'm now going to go get some stuff and attempt to get TightVNC to work. Wish me luck.

i have quite a few old 266's here and they get really good numbers on FAD also so i must say i leave them on some but not as often as i used to as i dont have much service to this house... its only 60amp service here... and for those of you who havent already seen my thread im new to Free-DC and im looking forward to a really great crunching expierence

[redukt]

Lowest I'm running on FAD at the moment is an Athlon 750. I have a K6 200 I counted for dead years ago that I'm now reconsidering though :D