Message boards : Number crunching : CPDN/BOINC on Linux Dual CPU System ?
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Send message Joined: 30 Aug 04 Posts: 77 Credit: 1,785,934 RAC: 0 |
Hmm... I've setup another System, this time a Dual AthlonMP 2000+ running Linux. But even with my preferences updated to allow BOINC to take 2GB of Disk Space, it downloaded only one CPDN WorkUnit. Top shows the CPU Utilization at 100% only for one CPU, the other remains idle (?) Is BOINC V4.09 possibly unable to utilize the 2nd CPU (despite the Preference setting set to "On multiprocessors, use at most: 2 Processors" ) ?? IMHO, it should have detected the 2nd, idle CPU, and downloaded a 2nd Workunit, and run 2 Models parallel. -- update -- The Box just got SETI up and running on the Idle CPU, so it seems BOINC prefers to share CPU's among different projects, rather than having 2 CPU's running one and the same one (?) ___________________________________________ <p>Scientific Network : <a href="http://www.falconfly.de/network.htm">36200 MHz «» 8204 MB «» 815.0 GB</a> </p> |
Send message Joined: 5 Aug 04 Posts: 6 Credit: 7,002,751 RAC: 0 |
> IMHO, it should have detected the 2nd, idle CPU, and downloaded a 2nd > Workunit, and run 2 Models parallel. Yes it should. > -- update -- > The Box just got SETI up and running on the Idle CPU, so it seems BOINC > prefers to share CPU's among different projects, rather than having 2 CPU's > running one and the same one (?) No it shouldn't ;-) I have a dual MP running Windows XP with boinc 4.05 and boinc detects both CPUs and downloads two workunits. Did you originally have 1 CPU or are they modded XPs? Have you tried updating climateprediction.net on the project tab? I think your problem probably has something to do with the disk capacity preferences, seeing as a SETI workunit is a lot smaller than a climateprediction one. Funnily I have exactly the opposite problem. I have both SETI and climatepredition workunits downloaded (only a single CPU Windows XP PC) with both set to 50%, but the SETI project never gets any CPU time... Pete |
Send message Joined: 5 Aug 04 Posts: 178 Credit: 18,760,267 RAC: 44,018 |
Hi FalconFly, nice to meet you here ;-) With BOINC 4.05 their was a known "bug", that the resourceShare for CPDN had to be higher than 50%. Only then the CPDN-WU for the second Prozessor had been downloaded. It was discussed <a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=191#1043">here</a> Hope this helps, Greetings <a href="http://www.boinc.dk/index.php?page=user_statistics&project=cpdn&userid=34"><img border="0" height="080" src="http://34.cpdn.sig.boinc.dk?188"></a> Supporting <b>BOINC</b>, because it is really a <b>great concept !</b> |
Send message Joined: 30 Aug 04 Posts: 77 Credit: 1,785,934 RAC: 0 |
Hi Yeti :) Well, due to me attaching multiple Projects, the 2nd CPU is utilized normally now and works flawless. I reckoned my global setting of "Keep enough work / Contact Server every 1 day" might have resulted in it downloading only one Model initially. ___________________________________________ <p>Scientific Network : <a href="http://www.falconfly.de/network.htm">36200 MHz «» 8204 MB «» 815.0 GB</a> </p> |
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