"Sneaker-netting" Rosetta: Quad to Laptop

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FluffyChicken
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Message 45475 - Posted: 26 Aug 2007, 14:10:48 UTC - in response to Message 45460.  

rosetta is single threaded so boinc will run four instances of rosetta on a quad. HTH
Danny


...if your BOINC general preferences are changed to a maximum number of CPUs of 4 (or more).

good call!

...and your maximum memory useage will allow four threads to fit!


Just to clarify to EW,
BOINC Manager is just a way to monitor/tell it what you would like BOINC itself to do. You do not actually need BOINC Manager to be running.

BOINC will fire off 4 Rosetta@Home as you suspect it would need.

Note to others posts, Any Quad Computer worth the money would have enough memory to run this no porblem, espeiclaly at the current price or RAM ;)

Oh and my friend ran in to the max processor niggle and had to up it. I guess when we started 2 instances was the default, it's only recently it's set at a max of 16.
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The_Bad_Penguin
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Message 45489 - Posted: 26 Aug 2007, 19:46:16 UTC - in response to Message 45437.  
Last modified: 26 Aug 2007, 19:47:30 UTC

Lots of problems trying to download more than a single wu.

Think it has something to do with the laptop I am trying to sneakernet with.

At this rate, I'll probably just wait the week, and bring it online around Sept 1-3.

Comes with 2Gb RAM, I have two 512 Mb's just laying around, so it'll be up to 3 GB.

With RAM so cheap, I suppose I could purchase two 1 Gb's for a total of 4 Gb, but I don't think that the 32-bit version of Vista Premium will see anything more then 3 Gb, yes? Would going from 3 Gb to 4 Gb make a difference? If so, it's cheap enough to do it.

My Dell 9200 Q6600 quadcore arrived today.


Looking forward to your results.
After reviewing the way the quad core works on the Intel site, I have to wonder if it really will help much when running a single instance of BOINC manager. Sounds like to really push this puppy you need to try 4 instances to keep the processors busy.
Or (question to all out there) does BOINC/Rosetta create multiple threads to take advantage of a multi-CPU machine?



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Message 45492 - Posted: 26 Aug 2007, 19:52:21 UTC

Given the RAC of your laptop, BOINC probably assumes it will not be powered on much of the time, and so is attempting to order only a small amount of work to match.

Suggest you perform a second BOINC install on the laptop to a different subdirectory. Attach to the project and then you'll have a fresh start which will default to 3hr WUs. Then you can bump the cache and runtime pref. as discussed previously and get lots of tasks to bring to your quad.
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Message 45503 - Posted: 27 Aug 2007, 3:13:09 UTC - in response to Message 45489.  

snip... With RAM so cheap, I suppose I could purchase two 1 Gb's for a total of 4 Gb, but I don't think that the 32-bit version of Vista Premium will see anything more then 3 Gb, yes? Would going from 3 Gb to 4 Gb make a difference? If so, it's cheap enough to do it.


Here is an article that addresses the 32-bit OS 3Gb memory barrier.
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Message 45506 - Posted: 27 Aug 2007, 3:40:53 UTC - in response to Message 45503.  

Have been playing with the idea of building a number crunching desktop.
So far it looks like I can get a quad core II cpu (2.4ghz), 2 GB of DDR2 memory and a very suitable motherboard for less than $500.
The Intel CPU has 4x2MB cache which seems a good thing for Rosetta.
Since it will just sit in a corner, I plan on the most limited I/O capabilty, so it will just sit there cranking.
Opinions/suggestions?


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Message 45508 - Posted: 27 Aug 2007, 8:31:20 UTC - in response to Message 45492.  

Given the RAC of your laptop, BOINC probably assumes it will not be powered on much of the time, and so is attempting to order only a small amount of work to match.

Suggest you perform a second BOINC install on the laptop to a different subdirectory. Attach to the project and then you'll have a fresh start which will default to 3hr WUs. Then you can bump the cache and runtime pref. as discussed previously and get lots of tasks to bring to your quad.


Again, why you should install it on the Desktop first and not use the old installation.

Don't install again on the laptop, it'll more than likely alter teh uninstaller/installer registry paths...
Just install on the Desktop, either to the default place or directly to the USB drive.
Then use local preferences to set it all up, including the get work for 20 more days part.
Since it will be grabbing for 1 CPU on the laptop and no previous information, just set the number of extra days to 20 and that it will connect every 7 days (or whatever you're expecting it to be moved around.)
You should get plenty of tasks that way, may as well leave it at the default 3hrs for now.

Don't give up, have fun trying to get it to work :p
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Message 45664 - Posted: 1 Sep 2007, 18:26:50 UTC

Had other stuff to fight with, so gave up on the laptop "sneaker-netting".

Have just got the Dell up and running for some initial tests.

Should be 24/7 Rosie by the end of the week.

Let's see what "Quad-Cora" can do for my RAC !
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Message 45705 - Posted: 2 Sep 2007, 15:51:19 UTC - in response to Message 45664.  
Last modified: 2 Sep 2007, 15:56:17 UTC

You've already sold me on the value of a quad-core Bonic Buster....
Those are smoe excellent numbers for that beastie - looks like you are completing 10K cpu second WUs in 30-45 minutes.
Am curious, since each CPU has it's own 2MB cache and since Rosetta is likely a very tight looped application the cache must be a perfect match. How much memory of the 2GB you have are the 4 instances of Rosetta actually using?
For $500 I can get a motherboard with that CPU and 2GB of memory.
For that kind of $$ I just got to get me one of them.



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Message 45706 - Posted: 2 Sep 2007, 16:13:38 UTC - in response to Message 45705.  
Last modified: 2 Sep 2007, 16:24:15 UTC

For the wu's running now, each core is taking less than 150 MB of RAM, for a total of about 600 MB RAM.

RAM (depending upon the speed and timings, if you oc) can be very cheap.

I already did this deal for my Compaq A64 3800. Got rid of two 512 MB sticks, and put in these two 1 GB sticks.

Since my Dell 9200 has room for four sticks (two are populated with 1 GB sticks and two are empty, thank goodness, instead of four 512 MB sticks), I will add the two 512 MB sticks which originally came with the Compaq, giving me 3 GB.

Once I order another pair of these 1 GB sticks, out come the 512 MB sticks again, and the Dell will then go from 3 GB to 4 GB.

At about ~$20 for a 1 GB stick, unless oc'ing, if you can get a mobo which will take 4 sticks of RAM, it'd be worth paying a little extra for the mobo, imho.
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Message boards : Number crunching : "Sneaker-netting" Rosetta: Quad to Laptop



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