new to rosetta using q6600

Message boards : Number crunching : new to rosetta using q6600

To post messages, you must log in.

1 · 2 · Next

AuthorMessage
PJ Ru

Send message
Joined: 13 Jan 08
Posts: 1
Credit: 1,571
RAC: 0
Message 50629 - Posted: 13 Jan 2008, 8:37:24 UTC

im using boinc, and only rosetta ;) im new to rosetta and i was wondering: everest ultimate says all 4 cores are 100%, so if there any additional setup in order to use 4 cores fully ? also, does this program continue the simulation after i shut off the computer and restart it ? thanks, any other suggestions or comments or issues i should know about ? thanks
ID: 50629 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Astro
Avatar

Send message
Joined: 2 Oct 05
Posts: 987
Credit: 500,253
RAC: 0
Message 50631 - Posted: 13 Jan 2008, 12:45:15 UTC
Last modified: 13 Jan 2008, 12:46:17 UTC

by default boinc will only use 50% of available ram when actively using the puter and 90% when you're inactive. There are two "independent" place you can choose to set your preferences. You can either do so on the Boinc manager itself setting your "local" prefs,,,OR you can set them up under "Participants" your account here at the website. I have them set to 100% for both setting (active 100/inactive 100) on all my hosts. If you choose "local prefs" then it will "over ride" the web based settings.

welcome aboard

tony
ID: 50631 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
transient
Avatar

Send message
Joined: 30 Sep 06
Posts: 376
Credit: 10,836,395
RAC: 1,441
Message 50632 - Posted: 13 Jan 2008, 13:05:33 UTC

After powering up your computer, and logging on, Rosetta will continue the simulation from the last checkpoint it saved to your HDD. This only if you setup BOINC to start when you turn on your computer. Unless you managed to turn off your computer at the exact moment Rosetta saved a checkpoint, you will lose a small amount of computation time.
ID: 50632 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Michael G.R.

Send message
Joined: 11 Nov 05
Posts: 264
Credit: 11,246,222
RAC: 1
Message 50648 - Posted: 13 Jan 2008, 16:45:16 UTC

Welcome PJ Ru. Thank you for crunching and helping the project do important science!
ID: 50648 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
AlphaLaser

Send message
Joined: 19 Aug 06
Posts: 52
Credit: 3,327,939
RAC: 0
Message 50656 - Posted: 13 Jan 2008, 17:39:20 UTC - in response to Message 50629.  

im using boinc, and only rosetta ;) im new to rosetta and i was wondering: everest ultimate says all 4 cores are 100%, so if there any additional setup in order to use 4 cores fully ? also, does this program continue the simulation after i shut off the computer and restart it ? thanks, any other suggestions or comments or issues i should know about ? thanks


If BOINC is installed as a service, then BOINC will automatically start crunching after the computer is restarted, even if no one is logged in. Under any other install type, BOINC starts crunching only when logged in and BOINC manager is started.
ID: 50656 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Peter Ingham

Send message
Joined: 27 Sep 05
Posts: 14
Credit: 3,395,231
RAC: 620
Message 50749 - Posted: 17 Jan 2008, 8:02:51 UTC

In theory, there is nothing you need to do to take advantage of all 4 cores.

However, I have discovered that Rosetta gives unusually poor credit to systems running Q6600's (in some cases around 10% of what would be expected). Due to this, I'm only running Rosetta (at low share) on one Q6600 until this is resolved.
ID: 50749 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Profile dcdc

Send message
Joined: 3 Nov 05
Posts: 1676
Credit: 90,701,102
RAC: 69,764
Message 50750 - Posted: 17 Jan 2008, 9:33:41 UTC - in response to Message 50749.  

In theory, there is nothing you need to do to take advantage of all 4 cores.

However, I have discovered that Rosetta gives unusually poor credit to systems running Q6600's (in some cases around 10% of what would be expected). Due to this, I'm only running Rosetta (at low share) on one Q6600 until this is resolved.

i know a few people running multiple Q6600s with credit as expected. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?
ID: 50750 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
The_Bad_Penguin
Avatar

Send message
Joined: 5 Jun 06
Posts: 2751
Credit: 3,048,864
RAC: 3,360
Message 50754 - Posted: 17 Jan 2008, 12:29:32 UTC - in response to Message 50750.  

hmmm... don't think my q6600 rac was ever that high when it was doing 100% Rosie, 24/7.

iirc, somewhere in the 12xx's or 13xx's.

If Boinc/Rosie are using 100%, why would it throttle down? Thought that was only when cpu wasn't being pushed too hard.

you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?

ID: 50754 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
jegs

Send message
Joined: 16 May 07
Posts: 9
Credit: 80,767
RAC: 0
Message 50773 - Posted: 17 Jan 2008, 17:44:37 UTC - in response to Message 50754.  

hmmm... don't think my q6600 rac was ever that high when it was doing 100% Rosie, 24/7.

iirc, somewhere in the 12xx's or 13xx's.

If Boinc/Rosie are using 100%, why would it throttle down? Thought that was only when cpu wasn't being pushed too hard.

you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?



"Throttling down" happens when the CPU reaches an unsafe temperature from continued use and will not run at full speed until it has cooled back down. It's more of a problem with laptops but can happen in desktops with poor cooling.
ID: 50773 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Profile dcdc

Send message
Joined: 3 Nov 05
Posts: 1676
Credit: 90,701,102
RAC: 69,764
Message 50775 - Posted: 17 Jan 2008, 17:51:09 UTC

i don't think speedstep considers low priority tasks... I'm fairly sure (at least in some circumstances - maybe for specific hardware or power profiles) the clock is reduced when the only intensive tasks are low priority.

I don't have it enabled on my machines though...
ID: 50775 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Peter Ingham

Send message
Joined: 27 Sep 05
Posts: 14
Credit: 3,395,231
RAC: 620
Message 50793 - Posted: 18 Jan 2008, 8:05:58 UTC - in response to Message 50750.  


i know a few people running multiple Q6600s with credit as expected. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?


I'd love to get 1700RAC from a single Q6600!! I practice I've been seeing < 400 with Rosetta on 66% share.

For an example of low returns, see
https://boinc.bakerlab.org/workunit.php?wuid=121649462 It looks like somehow the credit system thinks some serious cheating is going on and scaling the granted credit severely.

I'll try setting Rosetta to 100% share on a Q6600 box & see what happens.
ID: 50793 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Profile dcdc

Send message
Joined: 3 Nov 05
Posts: 1676
Credit: 90,701,102
RAC: 69,764
Message 50794 - Posted: 18 Jan 2008, 8:53:33 UTC - in response to Message 50793.  


i know a few people running multiple Q6600s with credit as expected. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?


I'd love to get 1700RAC from a single Q6600!! I practice I've been seeing < 400 with Rosetta on 66% share.

For an example of low returns, see
https://boinc.bakerlab.org/workunit.php?wuid=121649462 It looks like somehow the credit system thinks some serious cheating is going on and scaling the granted credit severely.

I'll try setting Rosetta to 100% share on a Q6600 box & see what happens.

Credit is granted by the number of decoys (models) returned, but the claimed credit is calculated by the BOINC benchmarks x time. The BOINC benchmarks will run with the CPU is at full speed because boinc.exe runs at normal priority, so if EIST is kicking in when the CPU is running rosetta (low priority) your computer will have high benchmarks but low throughput - which would explain what's happening.

Try running CPU-Z and see if the clock speed drops after a while.
ID: 50794 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Paul

Send message
Joined: 29 Oct 05
Posts: 190
Credit: 62,415,484
RAC: 2,150
Message 50797 - Posted: 18 Jan 2008, 10:30:30 UTC

I get from 1700 - 2200 RAC from a Q6600 running R@H 24/4. This Q600 is currently overclocked to 3.4GHz but even at stock speeds 1700 is a good target.

The Q6600 is a great overclocker so if your systemboard provides the features, you can easily get 2.8GHZ out of almost any Q6600.

Make sure you have max processors set to 4 in your profile.
Thx!

Paul

ID: 50797 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Profile carp

Send message
Joined: 4 Jan 06
Posts: 12
Credit: 599,555
RAC: 0
Message 50876 - Posted: 21 Jan 2008, 20:54:53 UTC - in response to Message 50793.  


i know a few people running multiple Q6600s with credit as expected. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?


I'd love to get 1700RAC from a single Q6600!! I practice I've been seeing < 400 with Rosetta on 66% share.

For an example of low returns, see
https://boinc.bakerlab.org/workunit.php?wuid=121649462 It looks like somehow the credit system thinks some serious cheating is going on and scaling the granted credit severely.

I'll try setting Rosetta to 100% share on a Q6600 box & see what happens.


Yikes! you are really getting the shaft. Here is a link to an Acer Aspire only running on one core.
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=122537142
ID: 50876 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Peter Ingham

Send message
Joined: 27 Sep 05
Posts: 14
Credit: 3,395,231
RAC: 620
Message 50933 - Posted: 24 Jan 2008, 6:56:00 UTC - in response to Message 50876.  


i know a few people running multiple Q6600s with credit as expected. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running?


I'd love to get 1700RAC from a single Q6600!! I practice I've been seeing < 400 with Rosetta on 66% share.

For an example of low returns, see
https://boinc.bakerlab.org/workunit.php?wuid=121649462 It looks like somehow the credit system thinks some serious cheating is going on and scaling the granted credit severely.

I'll try setting Rosetta to 100% share on a Q6600 box & see what happens.


Yikes! you are really getting the shaft. Here is a link to an Acer Aspire only running on one core.
https://boinc.bakerlab.org/rosetta/workunit.php?wuid=122537142


Thanks for the advice, I'd love to be contributing more, but the credits seen for other projects are much, much higher.


One of the Q6600's has been set so Rosetta is getting 100%, XP power setting was changed to always on (BIOS still has EIST enabled) & I have confirmed via CPU-Z that the clock is not dropping below spec 2.4GHz. It has been running like this with 4 cpus enabled for several days.

Still seeing a lot of WU's with low ratio of claimed to granted. Credit over last 24Hrs for this system 482. A WU returning 1 decoy took 9843.75 cpu seconds.

I will try setting EIST off in BIOS.

The only slightly strange characteristic of these systems is that they have 4GB physical RAM of which only 3 is usable (due to PCI memory mapping etc).
ID: 50933 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Peter Ingham

Send message
Joined: 27 Sep 05
Posts: 14
Credit: 3,395,231
RAC: 620
Message 50935 - Posted: 24 Jan 2008, 7:39:19 UTC - in response to Message 50933.  

Looking into this from another perspective, looking at http://boincstats.com/stats/host_cpu_stats.php?pr=rosetta&st=200&or=12 shows that for Rosetta, the Q6600 is ranked as 274th for credit per cpu-second (much higher ranking in other projects - see some earlier posting of mine in this thread).

Using the quoted average of 0.01945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.
ID: 50935 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
transient
Avatar

Send message
Joined: 30 Sep 06
Posts: 376
Credit: 10,836,395
RAC: 1,441
Message 50939 - Posted: 24 Jan 2008, 15:48:26 UTC - in response to Message 50935.  

Looking into this from another perspective, looking at http://boincstats.com/stats/host_cpu_stats.php?pr=rosetta&st=200&or=12 shows that for Rosetta, the Q6600 is ranked as 274th for credit per cpu-second (much higher ranking in other projects - see some earlier posting of mine in this thread).

Using the quoted average of 0.01945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.


on my calculator, using your number 0.01945*3600*24, I get 1680 credits
ID: 50939 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Peter Ingham

Send message
Joined: 27 Sep 05
Posts: 14
Credit: 3,395,231
RAC: 620
Message 50960 - Posted: 25 Jan 2008, 10:11:49 UTC - in response to Message 50939.  

Looking into this from another perspective, looking at http://boincstats.com/stats/host_cpu_stats.php?pr=rosetta&st=200&or=12 shows that for Rosetta, the Q6600 is ranked as 274th for credit per cpu-second (much higher ranking in other projects - see some earlier posting of mine in this thread).

Using the quoted average of 0.01945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.


on my calculator, using your number 0.01945*3600*24, I get 1680 credits


Sorry, my mistake, it should read:

Using the quoted average of 0.001945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.

0.001945 * 3600 * 24 * 4 = 672
ID: 50960 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
transient
Avatar

Send message
Joined: 30 Sep 06
Posts: 376
Credit: 10,836,395
RAC: 1,441
Message 50963 - Posted: 25 Jan 2008, 16:30:25 UTC - in response to Message 50960.  
Last modified: 25 Jan 2008, 16:31:15 UTC

Looking into this from another perspective, looking at http://boincstats.com/stats/host_cpu_stats.php?pr=rosetta&st=200&or=12 shows that for Rosetta, the Q6600 is ranked as 274th for credit per cpu-second (much higher ranking in other projects - see some earlier posting of mine in this thread).

Using the quoted average of 0.01945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.


on my calculator, using your number 0.01945*3600*24, I get 1680 credits


Sorry, my mistake, it should read:

Using the quoted average of 0.001945 Rosetta credits per cpu second, we find that a Q6600 @2.4 giving 100% of 24hrs to Rosetta should average 672 credits per day.

0.001945 * 3600 * 24 * 4 = 672


Even then I have a problem, because on my Q6600 which does not run 24/7 (about 65% to 70% of that), and crunches 5 different projects (40% resource share for Rosetta), RAC is something like 590 credits/day. Okay, it is overclocked to 3 GHz, but even then running under the conditions you describe, it would exceed 672 credits per day, I think.

https://boinc.bakerlab.org/rosetta/show_host_detail.php?hostid=317645
ID: 50963 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
Michael G.R.

Send message
Joined: 11 Nov 05
Posts: 264
Credit: 11,246,222
RAC: 1
Message 51004 - Posted: 26 Jan 2008, 20:11:39 UTC - in response to Message 50933.  

Thanks for the advice, I'd love to be contributing more, but the credits seen for other projects are much, much higher.


I know some people do distributed computing for credits, but I encourage you to also consider the scientific and medical value of your computer's work. In the end, credits are just numbers; medical breakthroughs can improve the lives of millions.

ID: 51004 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
1 · 2 · Next

Message boards : Number crunching : new to rosetta using q6600



©2021 University of Washington
https://www.bakerlab.org