| Index | Recent Threads | Unanswered Threads | Who's Active | Guidelines | Search |
 |
World Community Grid Forums
Category: Support
Forum: Suggestions / Feedback
Thread: 64 bit workunits |
| No member browsing this thread |
|
Thread Status: Active Total posts in this thread: 20
|
|
| Author |
|
|
sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: 
|
I see what you mean,
 Go to Device Profile online, and alter the Default, Home, Work or School profiles so that one is for 64bit systems and another for 32bit systems - with appropriate tasks assigned to each depending on whether or how much advantage there is with 64bit. HCC and HCMD2 would obviously be on my 64bit profile, being about 35% faster there. HFCC, and FAAH are about 25% faster too. For now I will pick HFCC, for 64bit, as I have done the least work there, and think about it again later. The Nutritious Rice project and Human Proteome Folding I donât know about yet, so I will put those on the 32bit systems, for now. For now I will leave the Beta on both, as I get so few it will not matter. I will also enable new tasks to run under both profiles. When they are running for a while and someone has worked out how much of a 64bit advantage there is I will know where to allocate them. |
||
|
|
JmBoullier
Former Community Advisor Normandy - France Joined: Jan 26, 2007 Post Count: 3716 Status: Offline Project Badges: 
|
I will also enable new tasks to run under both profiles. When they are running for a while and someone has worked out how much of a 64bit advantage there is I will know where to allocate them. If you do that you will quickly be able to feel it by yourself. When I do more serious tests and measurements it is because people are not obliged to believe me just because I say it. But if it were only for my own use, most of the time I would not need it to take a decision. Regarding profiles. I don't know if you do your performance settings in the web profile or in the local preferences. If it is via the web profile(s) you might like to have 2 profiles per mode, one for desktops and one for laptops. Anyway, it is obvious that you have got me right and I am confident that you will find the best arrangement for your machines. Happy crunching! Jean |
||
|
|
sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges:
|
Thanks Jean,
I was mainly using the local preferences, which are not the same. However, I have now setup 3 profiles, one for 64bit, one for 32bit workstations and one for my 32bit laptop. So, im sorted! It is always a good idea to publish findings that other people can use to improve their work throughput. Lots of people would be happy to use 64bit systems if they just knew it improved performance for work units by up to 35 percent. So thanks for posting your findings. |
||
|
|
sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges:
|
Running HCC & FightAids rather than NRW &/or HCMD &/or HFCC increased my power consumption by about 9% on an i7-920 @ 3.78GHz. I hope it's worth it; the application is more honed!
----------------------------------------- It was not, ran too hot and shut down. [Edit 1 times, last edit by skgiven at Jan 24, 2010 12:10:34 PM] |
||
|
|
Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges:
|
skgiven I have the feeling that you run with pretty high core temps if I am not wrong. If you are at the limit then something little more intensive will trigger a survival reflex from your CPU
---------------------------------------- . |
||
|
|
sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges:
|
It just shut down because the CPU reached the shutdown temperature limit. I am now running at stock
 |
||
|
|
Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges:
|
Stock frequency for a Core i7 920 stands at 2.66 GHz. That's a big fallback from 3.7. You probably can run at about 3-3.2 GHZ without risking a shutdown. Just increase the frequencies starting from stock in your BIOS with BLCK multiplier one unit at the time checking the increase in core temp until you reach 70 C max. Then you're ok and have margin.
---------------------------------------- [Edit 2 times, last edit by Hypernova at Jan 24, 2010 10:20:54 PM] |
||
|
|
Rickjb
Veteran Cruncher Australia Joined: Sep 17, 2006 Post Count: 666 Status: Offline Project Badges:
|
@skgiven:
What cooling are you running on that i7-920 CPU? The standard Intel heatsink/fans are inadequate when you start overclocking. They barely cope at standard speed and 100% load in hot weather. If you haven't done so already, get a high-end air-cooled heatsink setup, or even a watercooled system, and make sure that your case has good airflow through it. There's lots of useful info on cooling and other stuff over at MovieMan-land: XtremeSystems Forums > Cooling > Air Cooling and XtremeSystems Forums > Cooling > Liquid Cooling |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have posted information about 64bit vs. 32 bit FAAH speed test on this thread:
https://secure.worldcommunitygrid.org/forums/...ad_thread,28041_offset,30 If you are into docking and know autodock, you can find instruction of compiling it in 64 bit here: http://autodock.scripps.edu/faqs-help/how-to/...4-bit-windows-application |
||
|
|
sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges:
|
Sound advice guys,
Hypernova, you may be right about the clock speed. I just about have headroom to clock to 3GHz, given the projects allocated to that system. I put the frequency back to stock just in case there was another problem and because I wanted it to continue running overnight, without crashing  . Of course, I have now started messing with it again! First, I reallocated some projects, so it will start receiving different tasks. When it finished a few HCC and FA@H tasks I put the clock up to 3.06GHz and watched the temps and power consumption (rose by 7W and 2degreesC). When I forced Boinc to run some NRW tasks at the same time, the temps and power consumption dropped a bit (to 273W, down 4W and on average down 1degree C). When it starts to run 50% NRW and 50% FA@H, I may up the clock a bit more, perhaps up to about 3.2GHz, or I may leave it for a few days and then just start running the cooler tasks again. Rickjb, unfortunately I have a standard heatsink and fan (hence the problems); the piped heatsinks I have are for SKT775 and AM2/3 systems and do not fit, so yes I have to run hot! I would buy a good LGA 1366 heatsink for this, but I do not intend to keep the system too long; about 10 more weeks. I do have a very well ventilated system, and a basic graphic card (which helps reduce the power load & case temps). When I sell it on and get a more energy efficient i7-850 system I will get a good heatsink. In fact I want to get rid of a couple of other systems too. I really cant afford to run all the systems I have lying about - it would cost £2K per year! Some offer up little in terms of points, so they will be of no significant loss. Most of my systems are 64bit. wojciech_czyz, I would like the WCG to perform 64bit compiling too, but my skill set is of little use in this matter. |
||
|
|
|