KWSN Orbiting Fortress

[LanDroid]

[Plomos]

Ater 8.5 hrs of runtime i have hit my first trickle on 2 of the 4 units I'm currently running. They are all UK Met Office Coupled Model Full Resolution Ocean v6.07 WUs

apparently they trickle every 25,920 timesteps
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[Pooh Bear 27]

The nice thing about CPDN is they trickle at set steps (depends on the model itself). You get credit for those trickles returned, so even if a WU errors, you will get points as long as a trickle has been returned.

Models do crash at times. It is because they sometimes hit a situation that would not happen. These are still good for the project to get back. Many times they crash when it creates a storm or some other anomaly that would not really happen or would cause too much memory being used.

There are several types of units, sizes vary. I have not run them in a while so I am unsure of the current running units and their run times.

Since the main programming for all of this is FORTRAN, there is really no advantages with processor extensions. So things like AVX, etc really do not play into the picture.

Memory is a need for this project. Since they are performing a lot of weather modeling, it can take quite a bit of memory to load oceans, land, etc. My suggestion is on HT machines only run them at their normal cores, do not use HT cores. So 4x2 use 4, 6x2 use 6, etc, if you have enough memory to run that many. A C2Q runs 4 models at about the same speed as a 1st or 2nd Gen i7 at same speeds. I have not run a 3rd or 4th Gen chip on this yet, so unsure if there is any significant help with the better CACHE memories. I am sure there is some, but not as much as some would expect.

I will get on it after the PG challenge on 4-OCT through 9-OCT.

Good luck in this project. If you let it, it can be a hair puller, but all work returned is useful for them to continue building new models.
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Watch the movie about me The 4-1-4s: The Original Teenage Hackers (It is only about 12 minutes long.)
My lucky numbers are 121*2^4553899-1 and 3756801695685*2^666669±1

[Gemjunkie]

I haven't shrubbed CP yet. I'm a little concerned about the talk of memory use. Just how much is needed per core? One of my PhenomIIx6 shrubbers has 8GB. The other one has 16GB but currently shrubbing Asteroids and Edges is using 14.5GB since it's my general use machine with other stuff running. It tends to lock up if I open a several more windows as it is. I'll switch the quads over when they clear their current caches.
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(older, before split CPID)

[LanDroid]

I'm currently running 7 of the Haccm3n WU's on an I7 CPU (4 cores and 8 threads) with 12 GB memory. (Poem GPU is taking up the 8th CPU thread.) These are large "full resolution ocean" WU's estimated at 320+ hours each. As far as memory, the resource monitor is saying 46% physical memory being used in total. Based on that it appears 1GB memory per WU should cover it, but might not want to go below that for Haccm3n WU's. Checkpointing is active so I'm not too concerned about the time to completion, although don't think I want to run any more of these...
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[stooper101]

Well, after plowing ahead recklessly and discounting Sir Pooh's advice about hyperthreading, I have realized that my computer is indeed not 'special' and cannot avoid errors whilst running many instances. So, I am trying out a new tactic. I'm testing using a app_config file to limit concurrent WUs running at once. So far, today I have not gotten an error and I'm still HT-ing. I am only running 4 climate WUs at once, but I can back-fill with another project using the back-up project feature (resource share of 0%).

Here's my file:

[Plomos]

Only have 2 physical cores, but was running 4 CP to start with and had no errors. Cut it down to 1 for now so i can focus on PG, but after will prolly go back to running all 4 since i haven't had any probs yet. Builds up more points if i can run 4 anyways
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[Gemjunkie]

Shrubbing this project is almost as exciting as watching paint dry.
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(older, before split CPID)

[Pooh Bear 27]

They are long units, but you get credit every so often when they trickle up. Better than sitting 10 days on an SOB and it dying at 99.xx% and getting 0.
_________________
Watch the movie about me The 4-1-4s: The Original Teenage Hackers (It is only about 12 minutes long.)
My lucky numbers are 121*2^4553899-1 and 3756801695685*2^666669±1

[LanDroid]

[Yankton]

You may be able to stop and start boinc again. I think that still works. I just let it snag something else for a day and then let it get back on track.
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Some days are worse than others.

[Plomos]

The one model i left running through the PG challenge has completed only 23% or ~243,000 timesteps. Looking at the runtime it has used to get here. 4 days 10 hrs etc. there are still ~790,000 timesteps left to be completed. These will most likely run into next month but at least I'm getting points every so often
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[Pooh Bear 27]

My first units should download here this afternoon, since if I grabbed the PG ones it would go past the end time (taking about 26 hours to complete and just about 24 hours left on the project).

I plan on pulling 20 units total and finishing them as well as I can before moving on. Hoping to get my 5000 hours in WUProp. I am just grabbing the large ones. Let's see how this goes.
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Watch the movie about me The 4-1-4s: The Original Teenage Hackers (It is only about 12 minutes long.)
My lucky numbers are 121*2^4553899-1 and 3756801695685*2^666669±1

[PhastPhred]

[branjo]

[LanDroid]

[LanDroid]

Despite the "peeling paint" I'm surprised Climate Prediction doesn't get more votes in the PotM. Almost 60 Knights have shrubbed it in the last week! Let's see if production increases now that the PG Challenge is over - 15.3K daily average at beginning of the month, 33.7K average over past week (including the challenge).

'Stones:
Banned passed 1,000,000
LanDroid 80,000
FloydPepper 40,000
Sir Mifun Fat in a Right Place passed 20,000
Stuart 10,000
Gemjunkie[TeaM] 9,000 <= Go Gem Go!
Plomos passed 8,000
Keegan 5,000
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[branjo]

[LanDroid]

Oh no...Out of work? We're cursed!

[Blurf]

Just pulled down another WU and my machine will chew on that while I am away next week
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