Posts by petri33 - 3(3MB+1AP) tweaking


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1) Message boards : Number crunching : HW donations (Message 1620046)
Posted 28 days ago by Profile petri33 - 3(3MB+1AP) tweakingProject donor
I'll give up some old hardware:

1) a 560 Ti and
2) a GTX 660.

Both of them have cooled off now for more than a year on the shelf. They might need some lubrication.

You may opt to have just one but I guess the shipping costs are about the same for both of them.


Hey petri33, I will take them both.

Look at Your PM.


WezH is now the lucky one. He'll be receiving a packet soon after New Year.
2) Message boards : Cafe SETI : Word Link Discussion Thread III (Message 1618596)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
I wish me a crappy christmas.
3) Message boards : Cafe SETI : Word Link #76 (Message 1618588)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
non-test
4) Message boards : Cafe SETI : Beet's Give Us a Caption #58 (Message 1618585)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
No snow!
5) Message boards : Cafe SETI : Word Link #76 (Message 1618582)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
gathering
6) Message boards : Cafe SETI : Beer Drinkers thread part 22 (Message 1618579)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
Merry Christmas petri33! :) Cheers :)


[Clicked the "like" button]
7) Message boards : Cafe SETI : Word Link #76 (Message 1618572)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
faithful
8) Message boards : Cafe SETI : Beer Drinkers thread part 22 (Message 1618567)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
A BEERY BEERY CHRISTMAS TO ALL!

:D :G



Me think you a beery chritmas, me think you a beery christmas ...

and a happy new gear!
9) Message boards : Cafe SETI : Raccoon Update XX I - All are welcome in the Critter Cafe (Message 1618565)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
"And a partridge in a pear tree"

No

OK how about a wood pigeon and a squirrel




Compliments of the season to all

Nice looking animals but what really caught my eye were the yellow tiles/bricks. That looks almost exactly my home in the autumn. Now we have snow here.
10) Message boards : Politics : on the political correctness of political correctness (Message 1618561)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
I started, your turn!


Does one have to if one does not want to?
11) Message boards : Number crunching : Panic Mode On (93) Server Problems? (Message 1618517)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
No panic.

Santana Jingo.
12) Message boards : Number crunching : Average processing rate (Message 1618500)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
I have returned to running 8 MB at a time (0.125 GPU for GPU MB)

Which will result in very low throughput compared to running 2 at a time.

When I had my GTX 460/560Ti I tried running 1, 2 or 3 WUs at a time.
2 at a time gave me the most WU/s per hour processed.
When I got my GTX 750Tis I did the same thing, 1, 2 or 3 at a time. The result was the same, 2 at a time gave the most WU's per hour processed.
Although with MBv7 2v3 at a time was very close- longer running WUs gave much better throughput per hour running 3 at a time, but shorties actually gave much worse throughput- end result 2 at a time was the winner. If the Autocorrelations could be significantly optimised on the GPU then 3 at a time would be possible, with even greater throughput per hour than is possible now with the longer running WUs.


I know, I have tried. I compiled my own versions. Tweaked some settings (nv sched yield/sleep/hot). Running on linux. Tried with different kernel sizes. With different thread counts. Tried with __ldg(&). Tried with unroll N or __restricted__ (google that). Tried and tried.

And got tired.

Now running 8 at a time. Just because of my stubbordness.

p.s. And please divide the runtimes according to the numnber of running tasks.
13) Message boards : Number crunching : HW donations (Message 1618499)
Posted 25 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
I'll give up some old hardware:

1) a 560 Ti and
2) a GTX 660.

Both of them have cooled off now for more than a year on the shelf. They might need some lubrication.

You may opt to have just one but I guess the shipping costs are about the same for both of them.
14) Message boards : Number crunching : Average processing rate (Message 1618482)
Posted 24 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
The others have confirmed wat I have observed. YMMW - your mileage may wary.

I have run a number of configurations in a past few days. -- Which of them is "best" I cannot say.

One of each a time for two days: OK - shorter time as any of the ten top hosts. No apparent progress on any of the lists or APR. My calculations show that I gained some negative points on average.

Now running 4 at at time.

A few days ago I was running 8 MB at a time (With a different sw version).



An update ...


I have returned to running 8 MB at a time (0.125 GPU for GPU MB) and 3 AP at a time (0.33 for GPU AP).

APR may tell something, something can be guessed from the other's APR. It swings up and down, shows some numbers, gives me no clue.

So: 8 MB, 3 AP on 4 GPUs, + some on CPU.
15) Message boards : Number crunching : Average processing rate (Message 1617611)
Posted 22 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
The others have confirmed wat I have observed. YMMW - your mileage may wary.

I have run a number of configurations in a past few days. -- Which of them is "best" I cannot say.

One of each a time for two days: OK - shorter time as any of the ten top hosts. No apparent progress on any of the lists or APR. My calculations show that I gained some negative points on average.

Now running 4 at at time.

A few days ago I was running 8 MB at a time (With a different sw version).
16) Message boards : Number crunching : PC suddenly shuts down (Message 1610927)
Posted 8 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
Have been running the new fan for a few days and so far all works great.

The old fan, a Dell fan I think, wasn't full of dust or anything since I've used canned air several times before, but only crunching on GPU the PC would shut down. The PC is almost 5 years old, I'm wondering if your supposed to apply new thermal paste after some years?


CPU/GPU temp monitoring program would tell that.

You can see the difference of new and dried paste - remove Your CPU - look at the old paste after removal - apply new paste - tighten the CPU back and let run for a half of an hour - remove immediately after that - look again - compare.

I have had to re-apply the thermal paste for my 3930K once because it had dried. Can't remember when, but I guess about two years ago (and two years after I built my machine. Could have been a year and a half.)

I tried a mixture of a thermal paste and synthetic motor oil. Worked for 3 weeks. I do not recommend. It will not last.

Get the best thermal compound there is.

B.t.w. What is the best?
17) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1610914)
Posted 8 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
My RAC curve reminds me of a ski-jumping hill ...


** this is a test if I can attach a picture correctly **
18) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1610085)
Posted 6 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
And then there will be a AP feeding frenzy like never before, a chance for RACs only ever dreamed of.


I could just dream of that one of my GPU's had not had its fan blown out. Running with three now.
19) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1609754)
Posted 6 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
.. and not so happy. Just got my first optimized Einstein linux app working 95%+ flawlessly.

Out of curiosity, roughly how much improvement in run-times did you get?



At first the (BRP5-cuda) runtime decreased from 1h20min to 1h12min. After that I can not say since I have run 4 or 5 at a time and done BRP4G too.

Here is one and it is not with the latest version. This must be with 2 at a time.
http://einstein.phys.uwm.edu/workunit.php?wuid=204610223



This is newest (5 per gpu, 4 gpus, total 20 einstein tasks at a time running, no cpu tasks)
http://einstein.phys.uwm.edu/workunit.php?wuid=205636544

And here's one when running 4 at a time
http://einstein.phys.uwm.edu/workunit.php?wuid=203002383
That would make the run time to 1:08:45 for one task.
20) Message boards : Number crunching : Panic Mode On (92) Server Problems? (Message 1609622)
Posted 5 Dec 2014 by Profile petri33 - 3(3MB+1AP) tweakingProject donor
Well, you were Warned;
Notices
SETI@home: New Data from AO
The four disks from AO have arrived - about 5TB of data. I have queued them up for pre-processing (radar blanking) so new SETI@Home workunits should be going out soon.
Friday, December 05, 2014 'PMt' 05:54:33 PM ยท more...

My machines are working full speed.


Yippee!!!
Current result creation rate 28.9832/sec 0/sec 5m


.. and not so happy. Just got my first optimized Einstein linux app working 95%+ flawlessly.

... Still happy. SETI is my love.


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