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Message 941506 - Posted: 20 Oct 2009, 4:51:46 UTC

how do some people have over 100,000 credits per day?
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Message 941521 - Posted: 20 Oct 2009, 5:43:35 UTC - in response to Message 941506.  

how do some people have over 100,000 credits per day?

Hardware and perseverance.....
And a little help from Lunatics opti apps and Cuda cards.
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Message 941551 - Posted: 20 Oct 2009, 13:54:55 UTC

and you could run multiple CUda cards with i7 CPU's on multiple computers and the next thing you know you are 100k or more.


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Message 941673 - Posted: 21 Oct 2009, 4:19:29 UTC

Don't worry. Just like the lottery, the ET signal is going to be discovered by someone who only does a few work units a day & doesn't even monitor their setup!!

Now won't THAT piss off those who have spent thousands on upgrades and CUDA and maintaining a huge cache! :) :)


Remember, we low RACers are doing QUALITY work, not just quantity.

Hey! Let us keep our illusion while you highRACers run circles around us!! :)
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Message 941687 - Posted: 21 Oct 2009, 6:15:47 UTC

Simple Answer - Nvidia graphics cards.

Buy several PCs, with multiple PCI-e slots and a really grunty power supply.

Install as many top end Nvidia cards as you can fit / afford

Set them up with optimised apps and a bit of overclocking.

Upgrade your air-conditioning to get rid of the extra heat...

Sit back and watch your RAC go up.


Looking at the Top Hosts list at the moment it shows a machine with 8 Nvidia chips, (4 x 295 type cards) that has an RAC of over 90,000, for one PC. I would guess it's fairly well tweaked, probably puts out as much heat as a small space heater, and costs as much as a nice 2nd hand car. But it can be done.

The cheapest option is to install the optimised applications. It wont get you to 100,000, but it will probably double the work you are doing now.

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Message 941743 - Posted: 21 Oct 2009, 13:59:56 UTC - in response to Message 941687.  

my little 4770 heats up an entire room I can't imagine what 2 or more cards would do in an enclosed space.


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Message 941786 - Posted: 21 Oct 2009, 17:07:30 UTC - in response to Message 941743.  

my little 4770 heats up an entire room I can't imagine what 2 or more cards would do in an enclosed space.

The Kitties' crunching farm has been heating the whole house so far this year, and will probably do so until temps average well below freezing.
Works good in the winter, but in the summertime.......meeeeeeeouch.
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Message 944459 - Posted: 1 Nov 2009, 17:56:27 UTC

I don't know about anybody else, but I've been completing tasks with my small and slow laptop but the credits are not coming in due to multiple fast computers. If it takes more than 4 weeks validation on computers that complete basic SETI at 1h30min versus myself who takes 2.5 days and then wait for validation for over 4 weeks, isn't there something wrong somewhere?? From my point of view, at the very least, it's slowing the entire process and it is pretty annoying...
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Message 944468 - Posted: 1 Nov 2009, 19:03:23 UTC - in response to Message 944459.  

I don't know about anybody else, but I've been completing tasks with my small and slow laptop but the credits are not coming in due to multiple fast computers. If it takes more than 4 weeks validation on computers that complete basic SETI at 1h30min versus myself who takes 2.5 days and then wait for validation for over 4 weeks, isn't there something wrong somewhere?? From my point of view, at the very least, it's slowing the entire process and it is pretty annoying...
Thanks

It's not a race.

I think we forget that for all the imperfections, we're doing work that would not be done any other way.

There are problems. One of those problems is with the replica database: they've been having trouble getting the replica to match the live database, and the reports that we see all come from the replica.

Once the problems are squared, we should see work come in, validate (or be reassigned) quickly, then transition and be gone.

But as long as it all happens eventually, well, that's what SETI@Home can do given the available staff and budget.
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Message 944471 - Posted: 1 Nov 2009, 19:24:08 UTC

A little down time is good for pendings. I noticed that i dropped 10k allready, 40k to go. Dont worry what your wingmen are doing as long as you crucnh a good WU you will get the credit eventually. I once waited 3 months for an AP to be vaildated and i did that on an old P4.
[/quote]

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Message 944473 - Posted: 1 Nov 2009, 19:31:19 UTC - in response to Message 944459.  

If it takes more than 4 weeks validation on computers that complete basic SETI at 1h30min versus myself who takes 2.5 days and then wait for validation for over 4 weeks, isn't there something wrong somewhere??


It's just one of the many prices of participation :-)

The reason it's the way you describe is because the big crunchers have thousands of wu's where deadline juggling may come into play, and perhaps multiple projects (Seti, Einstein, etc), and not to mention the machine might only be on a few hours a day and not at all on weekends. And then it might get yet another new batch of WU's, half of which have deadlines earlier than yours. So you can see how if your Wingman WU has a far off deadline, it's going to take a while before it rises to the top on the mega cruncher. And yes, some mega crunchers are notorious for ghosts, aborts, and time-outs, so you might get to wait another time interval as a 2nd WIngman tries, etc. The general advice is quickly accept that's how it is, and sleep comfortably knowing the credit ALWAYS eventually shows up IF it was legitimate in the first place.

I do wish Pending appeared in a column next to "Work Done" in the Projects page. I think that would ease a lot of this, but if you've not found it already, you can always check a tally of your pending points here. Just remember those are not guaranteed to validate (but 99.999% of the time they do)
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Message 944478 - Posted: 1 Nov 2009, 19:53:57 UTC - in response to Message 944473.  

My point was also about all the people who have to wait for new WU's to be available when the system is down, while there are 1,000's sitting in computers' megacrunchers for weeks. No system is indeed perfect.
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Message 944483 - Posted: 1 Nov 2009, 20:11:14 UTC - in response to Message 944478.  

Yep, those folks keep a 10++ day supply around at all times just so they can weather the outages (like the one we're semi in now).

I keep about a 5 day supply because if I go much higher, Boinc wobbles and then throws my GPU into a mad wu killing freenzy.

If my queue ducks under a day or so, I turn MilkyWay back on and cautiously grab a half days worth (don't want to back up the truck in case Seti roars back to life).
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Message 944485 - Posted: 1 Nov 2009, 20:26:58 UTC - in response to Message 944478.  

My point was also about all the people who have to wait for new WU's to be available when the system is down, while there are 1,000's sitting in computers' megacrunchers for weeks. No system is indeed perfect.

You have the same option: just carry a bigger cache to weather the inevitable shortages.
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Message 944488 - Posted: 1 Nov 2009, 20:48:11 UTC - in response to Message 944485.  

i knew we would be runnin out of work roughly around halloween, so ever since about a month ago i have been slowly stockpiling workunits. i did it slow so i could see when boinc starts to choke. for me it starts choking out around 4500 or so. according to my stats page i have over 4000 on my e5200 machine.

a few dozen on other machines.
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Message 944490 - Posted: 1 Nov 2009, 21:00:51 UTC - in response to Message 944485.  

I might add that one of my Wingman has about 4000 tasks "in Progress" with an overall turnaroud time of over 40 days.

If increasing cache will reduce processor speed, my computer can't handle it. It barely did an Astropulse in time (I don't get them anymore)a few months ago and just crashed overnight while running Rosetta (concomitant with possibly some automatic downloads).
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Message 944497 - Posted: 1 Nov 2009, 21:51:29 UTC - in response to Message 944490.  
Last modified: 1 Nov 2009, 21:51:51 UTC

If increasing cache will reduce processor speed, my computer can't handle it. It barely did an Astropulse in time (I don't get them anymore)a few months ago and just crashed overnight while running Rosetta (concomitant with possibly some automatic downloads).

A Transmeta Crusoe? Not many of those around.

Your Crusoe benchmarks almost twice as fast as my Via C3 Samuel.

Increasing cache isn't an issue until you have thousands of work units. On really slow machines, BOINC won't give you thousands. At times, you may be lucky to have just one.

At the moment, my "slug" says 88 hours to complete the only work unit in the cache, no big deal.

If I raised the cache to ten days, It'd only get bunch if they were shorties.

As for your wingman with a 40 day turnaround, that machine likely died, and if it was resurrected, the work was not resurrected with it.

That happens sometimes. Not everyone cares as much as you do.
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Message 944504 - Posted: 1 Nov 2009, 22:45:51 UTC - in response to Message 944497.  

The Crusoe provides only a 867Mhz but I live with it. You are right, there aren't many in North America in my VAIO frame.

If the wingman machine (server to 50?)died, that would be a lot of wasted time. It might take up to a further 4-5 weeks to know, thus totalling 60-65 days from the original download. I sincerely hope ET is as patient.


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Message 944507 - Posted: 1 Nov 2009, 22:53:46 UTC - in response to Message 944504.  

I sincerely hope ET is as patient.

It's tasks that are split from tapes recorded anywhere between a month ago and a couple of years ago, while the point they're recorded from in the sky is a couple of light years away. Do you really think it makes that much difference if this work is done immediately, or that it can take a couple of weeks extra? :-)
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Message 944508 - Posted: 1 Nov 2009, 22:57:27 UTC - in response to Message 944504.  

The Crusoe provides only a 867Mhz but I live with it. You are right, there aren't many in North America in my VAIO frame.

I guess you missed the part where I said one of mine is slower.

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Message boards : Number crunching : credits


 
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