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Message boards : Number crunching : Credit for TRYP WU

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Message 18453 - Posted: 29 Aug 2010 | 8:52:20 UTC

A TRYP WU has with me on GTX260 (216)
following result.

Run Time 84.824 sec
CPU Time 19.643 sec
Credits 17. 699

Am disappointed what the Credits concern.

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Message 18456 - Posted: 29 Aug 2010 | 9:18:46 UTC
Last modified: 29 Aug 2010 | 9:26:20 UTC

Hi,

I got this:

Name: 445-IBUCH_revlo_TRYP_100827-1-10-RND5857
GPU/CPU time: 63,717.75 / 62,623.50
Claimed/Granted: 14,159.83 / 21,239.74
GTX 460 Load: ~67%

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Message 18458 - Posted: 29 Aug 2010 | 9:42:52 UTC - in response to Message 18456.

29-IBUCH_revhi_TRYP_100827-0-10-RND3357
Received: 27 Aug 2010 10:59:28 UTC
Returned: 28 Aug 2010 21:02:00 UTC
Run time: 119,747.21
CPU time: 34,521.56
Claimed: 14,159.83
Granted: 17,699.78

GT240(215) GDDR5

In the same time I could have crunched 4 TONI_CAPBINDsp3's with ~27,000 credits on this card.

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Message 18494 - Posted: 2 Sep 2010 | 6:48:56 UTC

Problem with this monsters is, that they usually won't fit in the 24h limit, unless you have a new high-end card.
On my not that slow GT240 the only one I had 'til now took 126,879 seconds runtime, nearly 36h. Even the CPU-time was 90,000 sec., 1h longer than the limit.

You should extend the bonus limits according to the requirements of the WU, for the small, KASHIF_HIVPR probably even 20h would be sufficient, the long IBUCH_freebind_pYEEI are borderline for my machine that runs 24/7, on normal machines running just if in use it will be impossible not to miss the wished deadline, so ~36h would be the right limit, and for this _TRYP_-monsters you probably need an 4xx-one running 24/7 to meet the projects demands, imho at least 48h, better 72h, would be the right bonus limit.
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Message 18497 - Posted: 2 Sep 2010 | 16:41:07 UTC - in response to Message 18494.
Last modified: 2 Sep 2010 | 16:50:42 UTC

If you care about the bonus, I suggest you should simply abort those monster *_TRYP_* WUs, just right after they were downloaded. I've processed a couple of *_TRYP_* WUs while the same WU was processed by someone else at the same time for more than 48 hours. If there is no result after 48 hours, the project automatically reissues the WU to another client. It's no use assigning these long WUs to slow clients.

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Message 18499 - Posted: 2 Sep 2010 | 17:40:22 UTC - in response to Message 18497.
Last modified: 2 Sep 2010 | 17:40:33 UTC

We will try to change the BOINC software to issue them to fermi only.

gdf

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Message 18512 - Posted: 3 Sep 2010 | 14:24:44 UTC - in response to Message 18499.

We will try to change the BOINC software to issue them to fermi only.

gdf

Bravo!

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Message 18514 - Posted: 3 Sep 2010 | 14:47:13 UTC

Bring them on Dr. G ... we'll crunch them for you even if you push them to 20ns !!!
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Message 18528 - Posted: 4 Sep 2010 | 18:23:46 UTC - in response to Message 18514.

I've got a little complaint with these monster WU's. They're very elitist. I don't know how many thread I've read now with people being told to find some other project to crunch because their wee GPU's just can't follow. These are hard times & not everybody can afford to get that newest new. Yes it doesn't sound noble that people complain about not being able to get that bonus. But for whatever reason people choose to crunch, is it good enough that they have their PC's running 24/7 & pay for all that electricity? As I see, a huge WU processed on two machines is a waste, but also a long WU that doesn't complete within the 5 day deadline or a long WU that fails after crunching for hours or days.

I'd much prefer many more, much shorter WU's that only get sent to one PC at a time & maybe the ability to have multiple GPU's work on the same WU at once on the same machine.
____________

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Message 18529 - Posted: 4 Sep 2010 | 18:54:22 UTC - in response to Message 18528.

They are elitist in that they are large and therefore require more powerful GPUs, in order to get full credit. However, if they are only crunched on Fermi cards then non-fermi card crunchers would not have to worry about crunching them for several days and then not getting full credit.

I have one system with 4 GT240’s and another with 3 GT240’s. While these cards are not in themselves comparable to a Fermi, together they come close; 4 OC’d GT240’s were within 10% of my OC’d GTX470 (when it was in an i7 system) and presently two GT240’s could do about as much work as a GTX460. So I like the idea of sending one task to multiple GPU’s; but only if it is more productive! I know they can do this in the lab, but I am not sure if the package could be used via Boinc or if the techs want to, it would be a bit of an experiment in itself.

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Message 18530 - Posted: 4 Sep 2010 | 19:12:42 UTC - in response to Message 18529.
Last modified: 4 Sep 2010 | 19:34:24 UTC

But Fermi only WU's already exist. CC2.0 & higher. So what's the point in making monster CC1.1 WU's? Smaller CC1.1 WU would let even the smallest 55nm Geforce 8 contribute. As long as they're stable, there's less waste & early completion bonus' add up, so I can't see how smaller WU's can be bad. Unless it's a matter of bandwidth as sending & receiving WU's will increase as will the number of people able to participate.

BTW, does anyone know if the RSX was doing anything when this was still PS3GRID?

Sorry I complain a lot about this, but it's as if GPUGRID only want the leanest & meanest crew. But there's an Ocean of N00BS, part-timers, & less fortunate who also are willing to contribute.
____________

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Message 18531 - Posted: 4 Sep 2010 | 20:19:23 UTC - in response to Message 18530.

That’s just what the scientists are trying to tackle; to only send the larger WU's to Fermi's and not to CC1.1 cards.
If they can do it, and it may still take a while before it starts happening, things will be better for CC1.1 crunchers. You might still pick up longer tasks for a while - until they start only compiling them for Fermi's.
The team may have to reduce the number of other types of task available to Fermi's until they get through this lot.

I know where you are coming from when you talk about people with lesser GPU's that would contribute if they could. Unfortunately the very basic cards just don’t do enough to be useful and would hinder the project. Even if a separate project within GPUGrid was setup to support cards with for example 16 shaders, there would be a huge server burden that would hinder the overall project.
Fortunately other projects facilitate some of the lesser GPU's, and are still useful there.

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Message 18535 - Posted: 5 Sep 2010 | 11:46:07 UTC

You guys are a little confusing.
In an other thread you're talking about what 'green' GPU computing is, and in this thread you want thousands of older GPUs to join (which would be definitely not green).
When I joined this project I had a GT9400 silent VGA card. It was damn slow, I couldn't crunch with it while I was using my PC. The long crunching time was also disappointing, although I like the rosetta project because I can set the designated crunching time in it (and I set it to 24h). Then I 'upgraded' to a GT9600 silent, but it was also very slow. So I realized I need a top NVidia card to participate considerably. NVidia was working on their new card, so I didn't run to buy a GTX295. I was waiting more than a year to buy a fermi card instead. I know that I can use it longer for this project, than a GTX295. You may call this project (and me) elitist, (I prefer perfectionist) but a handful of us can do more work than a hundred of older GPUs (using much less elecricity). The growth of the GPU's computing capabilities makes older cards obsolete quickly in a project like this. GPUgrid will always face complains about not supporting older cards. The team could communicate this in a better way, but they are scientist, not PR managers. To be a perfectionist can be an advantage, if the project could have a clearer image of this, and could catch the attention of the right few people out there with it. A small team like GPUGrid has no resources to develop their application for every level of GPUs, to support hundred thousands of users. They have to choose what is best for the future of the project (and it's clearly not the older GPUs). CPUs also developed a lot, so some of them can catch up with an older GPU. In my opinion it makes more sense to have a CPU client, beacuse there are a lot more CPUs out there to utilize, than older NVidia GPUs.
Maybe I took it a little personally, but I mean no offense.

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Message 18536 - Posted: 5 Sep 2010 | 12:26:52 UTC - in response to Message 18535.

No offense taken, but even the blackest CUDA capable GPU is still much greener than the greenest CPU. Also, being green isn't junking that GPU before it actually dies or sending it to Africa where they junk it for you. Just because it goes back in the ground, doesn't mean trees like growing there & even if it becomes ashes & dust, that still doesn't solve it, it's still not green.

So I like to keep the thing alive for as long as it lives. If Nvidia makes it last 10 years, they could've made it last 5 good years instead, so I'm doing my part to OC & keep it running 24/7. But there still has to be a good reason to do it in the first place. That's why I'm miffed with ultra long WU's, sending the same WU to multiple PC's, & WU's that aren't robust (unless you choose to test Beta's).
____________

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Message 18540 - Posted: 5 Sep 2010 | 20:23:45 UTC

I am so tired of hearing the "elitist" remarks.
This is difficult science that requires serious heavy duty processing. Nothing more and nothing less.

I hope everyone who has an older card sticks around, I'm sure they will upgrade someday.

If my opinion gets interpreted as being elitist please don't confuse that, or a misguided sense of entitlement that GPUGrid should change to suit everyone's abilities, with the project's requirements ... heavy duty processing with fast returns.
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Message 18541 - Posted: 5 Sep 2010 | 20:40:16 UTC - in response to Message 18540.

I don't say what I say to offend. I'm just saying how I feel about a communal/social volunteer project (as I thought it was anyways). That it's an expensive hobby to have, for those who view it as a hobby, I understand that it "might" be a sign of prestige to have the latest & the greatest. But I don't psychically get to meet anyone who takes it even as seriously as I do, & I DON'T have a PC farm,

I only have 4 PCs with relatively old hardware. I did this because sometimes I like to build PCs just for fun & like to try new OS' also just for fun. If I'm the only one who's felt the financial crisis, even though I don't feel it that bad, it would be a surprise to me. But I've cut down on my hobby never the less. I'm hoping to wait at least a year before I build a new rig & I don't have the space or electricity to do this unless I get rid of one of my PCs.
____________

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Message 18544 - Posted: 5 Sep 2010 | 22:27:44 UTC - in response to Message 18541.

You are talking to people that take their hobby every bit as seriously as you. For many crunching is not just a hobby it is a way of life; it’s one of the things we live to do. Just because you cannot be a research scientist does not mean that you cannot push science along.
Hopefully we will meet up some day, ditto for anyone else that contributes here, and the scientists.
We contribute, despite the financial situation, because if we did not we would lose part of ourselves.
There is a route to upgrading that is beneficial to all – sell your older parts to people that don’t crunch. They will appreciate them for longer (a green act) and replace them with parts that are more economical to run, in terms of performance per watt (another green act).

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Message 18574 - Posted: 8 Sep 2010 | 16:54:55 UTC - in response to Message 18499.

We will try to change the BOINC software to issue them to fermi only.

gdf

You haven't succeeded so far ;)
My last one is another of those monsters, but as I just became aware of it, after 13:30h of crunching already done, I will definitely not abort it.
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Message 18580 - Posted: 8 Sep 2010 | 23:23:50 UTC

I think one of the reasons that these WUs are so slow is that they run at 20% lower GPU than the other WUs. WinXP-64, v258.95 drivers, v6.11.6 BOINC.

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Message 18582 - Posted: 9 Sep 2010 | 5:32:30 UTC - in response to Message 18580.
Last modified: 9 Sep 2010 | 5:37:23 UTC

I think one of the reasons that these WUs are so slow is that they run at 20% lower GPU than the other WUs. WinXP-64, v258.95 drivers, v6.11.6 BOINC.

These WUs made me overclock my CPUs. I think these WUs need more double precision calculations than other WUs, and this slows them down about 20%.

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Message 18585 - Posted: 9 Sep 2010 | 13:18:01 UTC - in response to Message 18582.

I think one of the reasons that these WUs are so slow is that they run at 20% lower GPU than the other WUs. WinXP-64, v258.95 drivers, v6.11.6 BOINC.

These WUs made me overclock my CPUs. I think these WUs need more double precision calculations than other WUs, and this slows them down about 20%.

MilkyWay is heavily DP and it runs all the GPUs at 99% so I'm not too sure about that as a hypothesis. Good idea though.

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Message 18586 - Posted: 9 Sep 2010 | 14:27:59 UTC - in response to Message 18585.

I think one of the reasons that these WUs are so slow is that they run at 20% lower GPU than the other WUs. WinXP-64, v258.95 drivers, v6.11.6 BOINC.

These WUs made me overclock my CPUs. I think these WUs need more double precision calculations than other WUs, and this slows them down about 20%.

MilkyWay is heavily DP and it runs all the GPUs at 99% so I'm not too sure about that as a hypothesis. Good idea though.

But MilkyWay only runs on double precision GPUs, not on mine for example, while I get those monsters here.
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Message 18587 - Posted: 9 Sep 2010 | 16:54:26 UTC - in response to Message 18586.

I think one of the reasons that these WUs are so slow is that they run at 20% lower GPU than the other WUs. WinXP-64, v258.95 drivers, v6.11.6 BOINC.

These WUs made me overclock my CPUs. I think these WUs need more double precision calculations than other WUs, and this slows them down about 20%.

MilkyWay is heavily DP and it runs all the GPUs at 99% so I'm not too sure about that as a hypothesis. Good idea though.

But MilkyWay only runs on double precision GPUs, not on mine for example, while I get those monsters here.

So then the WUs here must not be using the "DP units" of the GPU.

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Message 18595 - Posted: 9 Sep 2010 | 22:35:16 UTC - in response to Message 18587.

Maybe these are older type tasks that are not as readily optimized. Apparently the level of optimization they have now required them to be larger tasks, or they would be even slower to run if they were smaller.
They are for a paper, which may need a bit more work; when you try to publish a paper the moderator/publisher often gets back to you asking for you to include more results in a certain area.

NVidia’s are not great for dp, so they might be doing most of the dp work on the CPU here; most CPUs are reasonable good at it, but not all cards are. Saenger’s GT240 for example is not up to any dp work. It's only CC1.2; the MW requires CC1.3 or above cards as they have better dp ability.
The GF100 Fermis had much of this disabled by NVidia. Not sure what the GTX460's have to offer in terms of dp.

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Message 18700 - Posted: 15 Sep 2010 | 22:36:42 UTC - in response to Message 18574.

We will try to change the BOINC software to issue them to fermi only.

gdf

You haven't succeeded so far ;)
My last one is another of those monsters, but as I just became aware of it, after 13:30h of crunching already done, I will definitely not abort it.

x2... :-( Like Saenger, too far into this one (~ 11 hours) to abort.
____________

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Message 18718 - Posted: 18 Sep 2010 | 23:43:48 UTC
Last modified: 18 Sep 2010 | 23:53:58 UTC

Can anybody tell me what happened with this WU?
And this is a stange one too, but it's not TRYP, but it took so long, so that at first I thought it's one of them.

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Message 18719 - Posted: 19 Sep 2010 | 0:16:02 UTC - in response to Message 18718.
Last modified: 19 Sep 2010 | 10:18:45 UTC

They ran and both finished, but while some tasks are longer than others, such as that Tryp task (for which you missed out on the 50% bonus, but picked up the 25% bonus), they both took too long and there was time issues.

When I looked at your other tasks I saw this TONI failure.

If you suspect there is a problem with a task (taking too long), look at the amount of GPU utilization and the temperatures (GPUZ). If they are not right, restart your computer. See this post.

# Time per step (avg over 297000 steps): 102.830 ms (This looks wrong - too long)
# Approximate elapsed time for entire WU: 82263.636 s !
called boinc_finish

The run time is different in two different places (for both tasks),
http://www.gpugrid.net/workunit.php?wuid=1889569 138,717.20
http://www.gpugrid.net/result.php?resultid=2982448 183265.009 s

http://www.gpugrid.net/result.php?resultid=2946115
http://www.gpugrid.net/workunit.php?wuid=1857373

I cant tell if the task (or even system) restarted a few times during its run, or if your GTX480's went into sleep mode, but I would guess the TONI task that failed messed things up, as it did with me and others.

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