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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: RAM- How much is enough? |
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Thread Status: Active Total posts in this thread: 4
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Hardnews
Senior Cruncher England Joined: Oct 11, 2008 Post Count: 151 Status: Offline Project Badges: 
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Dear Professeurs of BOINC
----------------------------------------I run a little machine with an 17-2600K, Ubuntu 11.04, and 2 gigs of RAM. With hyperthreading, the machine chews on eight tasks at once and runs like a train. It is BOINCing at 80% at the moment, due to a trivial issue with my wallpaper scorching. (A new cooler is to be gotten) Ubuntu tells me that it is only using 37% of the 1.9GB available to it, and somehow, this seems low. Yet, the machine eats work units . Your comments? If it's working, do I need to add more memory?  [Edit 3 times, last edit by Hardnews at Jan 11, 2012 12:53:26 PM] |
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Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges: 
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The 37% of 1.9 GB is 700 MB.
----------------------------------------I am running W7 64bit with 12 processes running in parallel. Each consumes about 35 MB so that is a total of 420 MB. I run GFAM, DSFL and C4CW. It would have been more with CEP2. So in terms of Boinc you are perfectly ok. The problem is the other applications if any that you run on your machine. In general terms 4GB is perfect for W7 running Boinc and little else. With W7 when going from 2 to 4 GB there is a real performance step. After that going to 6 brings a little more and over that no gain except if you use memory consuming applications like Photoshop, video, animation, CAD etc... In that case the limit will depend on what you do. Recent machines allow 16 to 32 GB easily.  |
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mikey
Veteran Cruncher Joined: May 10, 2009 Post Count: 826 Status: Offline Project Badges:
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The 37% of 1.9 GB is 700 MB. I am running W7 64bit with 12 processes running in parallel. Each consumes about 35 MB so that is a total of 420 MB. I run GFAM, DSFL and C4CW. It would have been more with CEP2. So in terms of Boinc you are perfectly ok. The problem is the other applications if any that you run on your machine. In general terms 4GB is perfect for W7 running Boinc and little else. With W7 when going from 2 to 4 GB there is a real performance step. After that going to 6 brings a little more and over that no gain except if you use memory consuming applications like Photoshop, video, animation, CAD etc... In that case the limit will depend on what you do. Recent machines allow 16 to 32 GB easily. I recently built a brand new X6 with 16gb of ram, it was REALLY cheap, and WCG is not using even half of it! I have 64bit Win7 Ultimate on the pc. I also have a two gpu's crunching for another project and the total ram usage is only 14%!   |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
With the recent knreed shared observations that WCG is studying multithreaded sciences [if they can from ground up] so the mainly RAM and IO intense ones can be limited in their total concurrent resource use... picture a CEP2 job running and spread over 4 cores rather than 4 running concurrently hitting the disk 4 times as hard, and often at the same time... the trend of crunching hardware needs could be down rather than up by 2013/2014. As the saying goes "can't wait for that to happen" :D
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