Some quick calculations, based upon currently published results, have shown that S5R2 now needs 4,57 times more CPU time than S5R1. This means roughly above 17h on my 1.8ghz Barton and around 19h on 1.666ghz Duron. Fortunately, both are on broadbands, so there is no issue with bigger WU sizes.
Anyway, this also means that older machines are now basically severly impaired. I cannot of course, in any way compare my Barton to Cruncher`s elite machines, but it is still not that old. Still, there are plenty of >1ghz machines... and they may choke on new WU`s.
We must then all hope on some optimizations:)
I still haven`t got any R2 WU`s, then my calculations are theoretical.
These apps aren't as fully optimized as the S5R1 app is so runtimes will improve somewhat. IIRC the previous app gained reduced crunch times by about a third, and that the optimizations did more for the higher end CPUs that the older ones which would narrow the spread somewhat.
Running multiple really low end PCs as crunchboxes is really inefficient. Each PC will draw something like $100+ worth of power a year @10c per kwh roughly double as much if you're forced to air condition the heat out of your house. My $700 c1D-173 laptop does ~15WU/day vs ~2 for alienators 4 antiques combined. That means that retiring his old machines and replacing them with 1 newer one would pay for itself moneywise in somehwere between 1 and 2 years with cheap electricity while doing almost 8x as much work. An otherwise bare bones DIY dualcore desktop can be had for less than half the price of my laptop and would pay for itself that much faster. About the only thing machines that old are still economically viable crunchers for is as space heaters during the winder if you have electric heat since in that case the little bit of crunching you get from them is essentially free.
Except for one thing, my old timers were retired from daily use as workstations and now perform specialized custom tasks and experiments for which they are perfectly adequate, cost me nothing to aquire, and I would be hard pressed to justify spending the money to buy a 'modern' replacement.
IOW, none of my machines are running just to crunch a BOINC project. They would be running whether they are crunching or not, but still have enough horsepower to help out a project. Especially one that's smart enough to realize not everyone is going to want run right out and buy a 4 banger (or greater) with 16 GB of RAM and/or set their requirement bar so high you have to play.
In any event, when it gets to the point where I feel it's costing me more than the enjoyment I get out of it is worth, the power switch will be shut off.
Except for one thing, my old timers were retired from daily use as workstations and now perform specialized custom tasks and experiments for which they are perfectly adequate, cost me nothing to aquire, and I would be hard pressed to justify spending the money to buy a 'modern' replacement.
Ah, memories... I used to have a K6-2/500 running. I don't have the system running now. In fact, it hasn't been used at all since sometime in 2002. I had it originally in a 430TX-based board running at 83x6 (no 100 FSB) until I did something silly and shorted out the board. I moved it to a Super7 FIC board (VA-503+) that was very tempermental. I'm pretty sure it was the board and not the processor, but I gave up on it and bought a Dell (my Pentium 4 as listed over at S@H)...
I am running Linux on a 400 MHz Pentium II. Since replacing the cathode tube terminal with an LCD my electricity consumption dropped from 7 kWh/day to 4 kWh/day. I am running Einstein, SETI and QMC 24/7.
Tullio
I am running Linux on a 400 MHz Pentium II. Since replacing the cathode tube terminal with an LCD my electricity consumption dropped from 7 kWh/day to 4 kWh/day. I am running Einstein, SETI and QMC 24/7.
Tullio
I'd like to get an LCD, but I want a new desk...so I can have TWO LCDs. I got used to having dual monitors at my former job. It is somewhat frustrating to be working on a single 19" CRT now... I'm up late working on my school work and have to minimize to go back to the assignment instructions rather than just have them over on one monitor and the Eclipse editor (Java coding) on the other... As noted though, to get any of this stuff, I need a job... :-(
Our goal is run times in the range from 6 to 24 hours. Note that some optimization is expected in the future so the apps will get faster.
Initial guestimate on my S5R2 is 33h 45m, with after an hour still estimated at 32h and going back up again. It's just messing with the CPU time.
Wall clock time is 1h 4m 21s for this run, CPU time shows 49m 24s.
Lucky that I only run CPDN besides this result, they can swap out rather quickly.
19/04/2007 10:24:29|Einstein@Home|Starting task h1_0159.35_S5R2__23_S5R2c_0 using einstein_S5R2 version 413
19/04/2007 11:28:50|climateprediction.net|Restarting task hadcm3inct_cnlt_1920_160_05865634_3 using hadcm3i version 540
Some quick calculations,
)
Some quick calculations, based upon currently published results, have shown that S5R2 now needs 4,57 times more CPU time than S5R1. This means roughly above 17h on my 1.8ghz Barton and around 19h on 1.666ghz Duron. Fortunately, both are on broadbands, so there is no issue with bigger WU sizes.
Anyway, this also means that older machines are now basically severly impaired. I cannot of course, in any way compare my Barton to Cruncher`s elite machines, but it is still not that old. Still, there are plenty of >1ghz machines... and they may choke on new WU`s.
We must then all hope on some optimizations:)
I still haven`t got any R2 WU`s, then my calculations are theoretical.
These apps aren't as fully
)
These apps aren't as fully optimized as the S5R1 app is so runtimes will improve somewhat. IIRC the previous app gained reduced crunch times by about a third, and that the optimizations did more for the higher end CPUs that the older ones which would narrow the spread somewhat.
Running multiple really low end PCs as crunchboxes is really inefficient. Each PC will draw something like $100+ worth of power a year @10c per kwh roughly double as much if you're forced to air condition the heat out of your house. My $700 c1D-173 laptop does ~15WU/day vs ~2 for alienators 4 antiques combined. That means that retiring his old machines and replacing them with 1 newer one would pay for itself moneywise in somehwere between 1 and 2 years with cheap electricity while doing almost 8x as much work. An otherwise bare bones DIY dualcore desktop can be had for less than half the price of my laptop and would pay for itself that much faster. About the only thing machines that old are still economically viable crunchers for is as space heaters during the winder if you have electric heat since in that case the little bit of crunching you get from them is essentially free.
Except for one thing, my old
)
Except for one thing, my old timers were retired from daily use as workstations and now perform specialized custom tasks and experiments for which they are perfectly adequate, cost me nothing to aquire, and I would be hard pressed to justify spending the money to buy a 'modern' replacement.
IOW, none of my machines are running just to crunch a BOINC project. They would be running whether they are crunching or not, but still have enough horsepower to help out a project. Especially one that's smart enough to realize not everyone is going to want run right out and buy a 4 banger (or greater) with 16 GB of RAM and/or set their requirement bar so high you have to play.
In any event, when it gets to the point where I feel it's costing me more than the enjoyment I get out of it is worth, the power switch will be shut off.
Alinator
RE: Except for one thing,
)
Ah, memories... I used to have a K6-2/500 running. I don't have the system running now. In fact, it hasn't been used at all since sometime in 2002. I had it originally in a 430TX-based board running at 83x6 (no 100 FSB) until I did something silly and shorted out the board. I moved it to a Super7 FIC board (VA-503+) that was very tempermental. I'm pretty sure it was the board and not the processor, but I gave up on it and bought a Dell (my Pentium 4 as listed over at S@H)...
I am running Linux on a 400
)
I am running Linux on a 400 MHz Pentium II. Since replacing the cathode tube terminal with an LCD my electricity consumption dropped from 7 kWh/day to 4 kWh/day. I am running Einstein, SETI and QMC 24/7.
Tullio
RE: I am running Linux on a
)
I'd like to get an LCD, but I want a new desk...so I can have TWO LCDs. I got used to having dual monitors at my former job. It is somewhat frustrating to be working on a single 19" CRT now... I'm up late working on my school work and have to minimize to go back to the assignment instructions rather than just have them over on one monitor and the Eclipse editor (Java coding) on the other... As noted though, to get any of this stuff, I need a job... :-(
RE: Our goal is run times
)
Initial guestimate on my S5R2 is 33h 45m, with after an hour still estimated at 32h and going back up again. It's just messing with the CPU time.
Wall clock time is 1h 4m 21s for this run, CPU time shows 49m 24s.
Lucky that I only run CPDN besides this result, they can swap out rather quickly.
19/04/2007 10:24:29|Einstein@Home|Starting task h1_0159.35_S5R2__23_S5R2c_0 using einstein_S5R2 version 413
19/04/2007 11:28:50|climateprediction.net|Restarting task hadcm3inct_cnlt_1920_160_05865634_3 using hadcm3i version 540
I've got two new WUs running
)
I've got two new WUs running on a 2.66 Pent D (runs XP Pro/1Gig RAM). They're looking like they'll take about 25-26 hours.
One is at ~22% after 5.5 hours and the other one is at ~15% after 4 hours.
Kathryn :o)
Einstein@Home Moderator
Got 1 WU om my AMD
)
Got 1 WU om my AMD 3500+.
~6.1% after 1hour giving around 16+ hours for total time.
Have too wait a little while see the correct time.
Here are some preliminary
)
Here are some preliminary S5R2 numbers from my own machines, for anyone who's interested.
Pentium III-450 Katmai
Elapased time so far: 30 hours 21 minutes
Progress so far: 42.792%
Duron 950
Elapsed time so far: 16 hours 5 minutes
Progress so far: 16.038%
Pentium III-733 Coppermine
Elapsed time so far: 14 hours 44 minutes
Progress so far: 34.894%
I don't have any R2's that have fully completed.
The only "modern" machine that I have is my Athlon64 3500+, but it's currently running a QMC unit. So, I don't have R2 numbers for it as yet.
I hope this helps.