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Very low point day 22Nov12 for F@H

 
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Putting_things_on_top
Duke
Duke


Joined: 14 Oct 2009
Posts: 435
Location: Frostbite Falls, Minnesota, USA

PostPosted: Thu Nov 22, 2012 11:20 pm    Post subject: Very low point day 22Nov12 for F@H Reply with quote

The points today have been VERY low for F@H.
I ran around my place a few times throughout the day just to check if all of my machines were still running.

Either a Stanford collection server (one or more) is not working right, or they handed out REALLY crappy WUs over the holiday.
I suspect both things happened.

Some of the SMP (CPU) WUs are down-right nasty...taking > 24h to complete and woefully small points.
On top of that, the algorithms they are using may be so tightly optimized that it doesn't give much room for other work...
...like servicing the occasional GPU request.

Even the WUs for GPU are running excessively long. Causality?


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sir spuddly buddly
Prince
Prince


Joined: 27 Nov 2004
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PostPosted: Fri Nov 23, 2012 1:34 am    Post subject: Reply with quote

Nobody wanted to be like the poor guy at SETI and go kick a server on Thanksgiving!
#ni-1
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sir spuddly buddly
Prince
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PostPosted: Sat Nov 24, 2012 1:50 am    Post subject: Reply with quote

Have you got the same problem as this guy? see http://foldingforum.org/viewtopic.php?f=19&t=23065
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Putting_things_on_top
Duke
Duke


Joined: 14 Oct 2009
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Location: Frostbite Falls, Minnesota, USA

PostPosted: Sat Nov 24, 2012 2:04 pm    Post subject: Reply with quote

Sounds kinda similar, but I haven't specifically noticed 70xx projects.
I just checked. Everything I am currently running is 80xx.

But I do remember one WU recently that I had that had a TPF > 15 mins!
That one took a little over 24 hours to complete (SMP) for a mere ~2300 points.
The base points on that WU was something like 640.
It was running on my FX-8350, too! (all 8 cores @ 4.0GHz)
Had it been running on one of my other CPUs, it would have taken 1.3 to 1.7 days to complete - and given less points.
#ni-1

I think it had more to do with some servers that were down for "scheduled" maintenance.
http://folding.typepad.com/news/2012/11/folding-servers-vsp12a-g-will-be-down-for-maintenance.html
These kinds of things never go as smoothly as planned.
They were probably down for a couple of DAYS (instead of a couple of hours).
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sir spuddly buddly
Prince
Prince


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PostPosted: Sun Nov 25, 2012 2:24 am    Post subject: Reply with quote

Do n't know if it's relevant, but I'm running GPU project 8044 and it's only max 80% load instead of the 99% on previous WUs.
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a monster can be excused for his behaviour . . . The problem is not how a monster could do it, but how a human being did it.
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Putting_things_on_top
Duke
Duke


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PostPosted: Sun Nov 25, 2012 11:25 am    Post subject: Reply with quote

I don't pay attention too closely to the projects that come thru.
But I have noticed that some WUs really heat-up the GPUs while others are less intense.

OH - I just looked. I actually have one 8044 running now.
It's running 99% on a 384-core GTX-560Ti (882MHz).
The TPF is 2 min 19 sec.

There may be differences within the project (the PRCG) that dictate different algorithm usages based in the input-data.
#ni-1
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Putting_things_on_top
Duke
Duke


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Location: Frostbite Falls, Minnesota, USA

PostPosted: Sun Nov 25, 2012 10:53 pm    Post subject: Reply with quote

I just got done reworking my oldest shrubber. UUGGH! What a chore!

1) Changed the CPU cooling from air to water (Thermaltake Bigwater 760)
2) Cleaned & re-thermaled my GPUs
--- Of course I found huge gobs of dried-out gunk in both GTX-560Ti's! I wonder how these cards don't burn-out within the first week!
--- One of my GPUs had a fan that seized-up (they both have two fans each), so I'm ordering a set of replacement fans. I'm sure the other fan will stop within a few weeks or so.
#ni-1
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sir spuddly buddly
Prince
Prince


Joined: 27 Nov 2004
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PostPosted: Mon Nov 26, 2012 1:50 am    Post subject: Reply with quote

Be nice to your shrubbers and they will be nice to you!

#ni-1
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sir spuddly buddly
Prince
Prince


Joined: 27 Nov 2004
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PostPosted: Tue Nov 27, 2012 2:44 am    Post subject: Reply with quote

Tried 9600 GT with GPU client and hit 100% fan & 100 C ! Razz

I'm frying my breakfast on the case ... mmm ... fried egg and thermal paste residue ... drool.

#ni-1
_________________
a monster can be excused for his behaviour . . . The problem is not how a monster could do it, but how a human being did it.
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Putting_things_on_top
Duke
Duke


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PostPosted: Wed Nov 28, 2012 12:49 am    Post subject: Reply with quote

sir spuddly buddly wrote:
Tried 9600 GT with GPU client and hit 100% fan & 100 C ! Razz
I'm frying my breakfast on the case ... mmm ... fried egg and thermal paste residue ... drool.

WHOA! 100c? Seriously?

Since the 9600 is probably WAY out of warranty, have you considered carefully taking it apart, cleaning it, and re-thermaling it?
I realize that these older GT cards run hot...but 100c...cheeze-n-crackers!
I would expect (at 100% utilization) to see around 85~90c as the top-end of the thermal envelope.
But the good news is the GT class cards were made quite durable (especially if you got a BFG brand).

#ni-1

EDIT: One bit of advice: Don't use Arctic-Silver!
Use the thermal grease from Antec or SIIG...or even Ceramique works well.
Arctic-Silver dries-out (cures) and you're left with a layer of brick mortar after a while.
The ones I mentioned are non-curing. I always use the Antec brand...ALWAYS!
And I only cover the chip (not the heat-sink) as thinly as possible.

I used to have a couple of GTS-250s, and after the temps started to climb (after a few months of folding), I re-thermaled them...and dropped the temps by about 12~16c.
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Sir Papa Smurph
Cries like a little girl
Prince


Joined: 18 Jul 2006
Posts: 4430
Location: Michigan

PostPosted: Wed Nov 28, 2012 6:19 am    Post subject: Reply with quote

If you know someone with an air compressor that should do the trick. Mine are running in the 70's now but one of the 9800GTX+ hit 105 last week.
I went at it with Q-tips but 12cfm at 90 psi works WAY better... #ni-1
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sir spuddly buddly
Prince
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PostPosted: Wed Nov 28, 2012 4:23 pm    Post subject: Reply with quote

Can of compressed air empty, and only arctic silver to hand, but temps dropped to 75 C after removal of dust and 1/2 inch of old thermal paste.

OC time! Laughing

Now running Boinc & F@H GPUs at the same time ...

#ni-1
_________________
a monster can be excused for his behaviour . . . The problem is not how a monster could do it, but how a human being did it.
Scaring 11 year olds since 2005
"There is only one path to Ni!-dom - through the shubbery"
Click every day at http://naturarvet.se/en/ to save a forest!
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Sir Papa Smurph
Cries like a little girl
Prince


Joined: 18 Jul 2006
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PostPosted: Wed Nov 28, 2012 9:12 pm    Post subject: Reply with quote

Cans are nearly worthless. Get the kind that you can take Lug Nuts off with. I'm not joking. You are not gonna believe how much dust comes out
#ni-1
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Putting_things_on_top
Duke
Duke


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PostPosted: Wed Nov 28, 2012 10:34 pm    Post subject: Reply with quote

sir spuddly buddly wrote:
Can of compressed air empty, and only arctic silver to hand, but temps dropped to 75 C after removal of dust and 1/2 inch of old thermal paste.
...

Scraping-out the old thermal 'cement' does work wonders, doesn't it?
I thought of using a dental pick (the metal ones that dentists use), but I didn't want to scratch surfaces.
I remove the bulk of the stock mortar with 91% isopropyl alcohol, and finish cleaning up with 100% pure acetone.
I found 100% "cotton rounds" [lint-free] at the local drug-store.
BTW: The cotton-rounds are most commonly used as make-up removal pads, but are VERY useful for this kind of component cleaning.
#ni-1
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