Everything You Need To Know About World Community Grid/BOINC

[D_A]

In terms of processing time, yes. Particularly with HCC work units.

[The Duke]

Is there a place that I can look up what I can expect from different CPUs .... trying to figure out which one to buy and was wanting to know some stats to help better choose a CPU for me ...

[Rob_B]

Have a look at this: http://www.xtremesystems.org/forums/...d.php?t=251213

That will give you an idea of what to expect of a CPU (overclocked or not)

[The Duke]

thanks Rob!

[The Duke]

does anyone know if 2 intel X5365 in a server board would crunch well? I looked at that sheet Rob linked and could not find anything on the clovertowns

like how much difference in performance would there be between that or an AMD 1055T ... those are my choices...

[Movieman]

does anyone know if 2 intel X5365 in a server board would crunch well? I looked at that sheet Rob linked and could not find anything on the clovertowns

21-22K WCG PPD..
Your i7-920 at even 3.5GHz will out do those clovers..

[The Duke]

21-22K WCG PPD..
Your i7-920 at even 3.5GHz will out do those clovers..

lol really? woooow ok

so a 1055T would be a better choice then?

[Movieman]

lol really? woooow ok

so a 1055T would be a better choice then?

No, get another 920..

[shoota]

No, get another 920..

+1 Intels just do better at crunching

[The Duke]

No, get another 920..

+1 Intels just do better at crunching

well ... no one has offered me any intel stuff in my WTB post ... so as of now I have a 1055T coming

[PoppaGeek]

well ... no one has offered me any intel stuff in my WTB post ... so as of now I have a 1055T coming

Not everyone here can afford to buy whatever they want when they want or have connections to get the hot stuff. I have 2 1055T and they each do about 21k WCG or 7k Boinc ppd. There are Intels that do better and some do alot better but that is what I bring to the table. With 44 AMD cores I am around #22-23 in daily RAC on team so AMD ain't all crap huh?

Thanks for bringing what ya can and doing what ya can.

[The Duke]

Not everyone here can afford to buy whatever they want when they want or have connections to get the hot stuff. I have 2 1055T and they each do about 21k WCG or 7k Boinc ppd. There are Intels that do better and some do alot better but that is what I bring to the table. With 44 AMD cores I am around #22-23 in daily RAC on team so AMD ain't all crap huh?

Thanks for bringing what ya can and doing what ya can.

wow thats not too bad

yaaa I wish I could just throw money down and go heavy on the intel ... but it just isnt that way.

had to trade a bunch of stuff for the AMD CPU as it is sooo hoping to add that to my 920 rig in the sig ...

are those PPD with it overclocked or stock?

[PoppaGeek]

wow thats not too bad

yaaa I wish I could just throw money down and go heavy on the intel ... but it just isnt that way.

had to trade a bunch of stuff for the AMD CPU as it is sooo hoping to add that to my 920 rig in the sig ...

are those PPD with it overclocked or stock?

Both 1055Ts are at 3.5gz and stock volts.

[lkiller123]

I have 2 1055T and they each do about 21k WCG or 7k Boinc ppd.

Ahem, isn't it 3k Boinc PPD?

[PoppaGeek]

Ahem, isn't it 3k Boinc PPD?

Somewhere in a parallel universe you did not catch that and the sales of AMD hex cores went up dramatically. In another I typed the 3 instead of the 7 that I was thinking that was the divisor of the 21. In another I graciously thanked you for catching my error. In THIS universe I am ignoring you and pretending nothing happened.

[lkiller123]

It's alright Poppa!

[retro77]

I prefer AMD to Intel. I'm not about buying $1k CPUs. My AMD quad core is a great performer, the Arima with it's Opterons is putting out good numbers. I don't need pie or the fastest CPU in the land to feel like I'm contributing. Plus we all know who has the fastest host now: sierra_bound!

[Origin_Unknown]

guys,

whats the max amount of WU's that a single machine can download per day? is it 64??

[Bobsama]

guys,

whats the max amount of WU's that a single machine can download per day? is it 64??

Bare minimum of 100; if your WU quota is low, either your machine is unstable or your machine is new to the Grid.

[Origin_Unknown]

Bare minimum of 100; if your WU quota is low, either your machine is unstable or your machine is new to the Grid.

lol i'm not that lucky to have 64 cores in one machine, i was just curious.

so 100 wu's per day for a single machine??

[retro77]

Isn't this controlled by how many days you specify in your Device Profiles? It's really how many you can crunch in a day times how many days you have in your cache. But I have seen some of my hosts that won't download the full cache amount. But they get one update at a time as one is completed. Nowhere near 100 either....

[D_A]

Each machine has a limit on how many work units it is allowed to download under ideal circumstances, I don't remember to maximum number, which drops each time you get an error. Bomb enough work units fast enough and your allocation will drop to zero or close to it per day. As you return units and they validate successfully that number goes back up, but it's limited by how fast your machine is as well. Something like my pentium Pro 200 will never see more than two or MAYBE three units in cache no matter how many days I set it to, while a fast quad could he holding an enormous number of cached units.

[Origin_Unknown]

cheers da

[MadMike261]

I was looking through the first few posts and noticed this:

Virtual memory usage

As many of you have noticed, during crunching the paging/swap file is constantly being used. Virtual memory usage is even higher with some operating systems like XP x64. Always make sure you have enough virtual memory allocated. If you're using XP, right click on My Computer ---> Properties ---> Advanced ---> Performance Options ---> Advanced.

WCG recommends that the maximum paging file size should be at least 2 or 3 times your real memory size, and should preferably be at least 512MB, whichever is greater.

I am going through tweaking my windows settings at the moment and had not yet thought about the pagefile.

So I went and checked it. It was windows managed at 8 gigs, although I couldn't discover how much was actually in use. But I turned it off anyway.

Since I have 8 gigs of RAM and with 8 threads of WCG running I rarely go over 2.5 gigs used (that is windows + boinc + random stuff like steam, opera etc..). Even though I have Boinc set to use a max of 75% (little over 6gig).

And after turning it off I did not notice an increase in RAM usage. So I am guessing with main rigs getting to huge amounts of ram.. do we really need it? Ofcourse dedicated crunchers could have less ram and would actually need it (possibly, I don't have any so I don't know)

Is this stupid with crunching? Does Boinc / WCG use it?



Besides that I was wondering about what it actually does when it writes to disk. And if increasing the timer would increase the amount of writing to be done at those points.

Any help on these subjects would be appreciated

[Russ_64]

Hey WCG team, I am planning to jump back in and help during SuperComputer Week - it was great fun last time I took part!

As I have not done WCG since last year, I was wondering if the client now uses GPU's (nvidia)? I remember that a year ago it did not.... would it be okay to run FAH on GPU at the same time as WCG?