seti on multiple cores system


log in

Advanced search

Questions and Answers : Unix/Linux : seti on multiple cores system

Author Message
dtran
Send message
Joined: 17 May 99
Posts: 2
Credit: 3,259,449
RAC: 0
United States
Message 338039 - Posted: 15 Jun 2006, 18:56:15 UTC

The test system is 4 dual core AMD Opteron 875 CPUs running Redhat Fedora core 5
Seti sees it as 8 processors.
When run, seti processes uses only 4 processors.
Is there something special I have to do so it will use all 8?

Dotsch
Volunteer tester
Avatar
Send message
Joined: 9 Jun 99
Posts: 2422
Credit: 843,145
RAC: 30
Germany
Message 338061 - Posted: 15 Jun 2006, 19:17:33 UTC

Go to "Your Account / "General Preferences" change the value "On multiprocessors, use at most 2 processors" to 8 CPUs. After you have changed the parameters, you have go to do a boinc_client -update_project http://setiathome.berkeley.edu, or update it via the boinc manager.
After the change, the boinc client will download more WUs and start a app for all 8 CPUs.

____________

dtran
Send message
Joined: 17 May 99
Posts: 2
Credit: 3,259,449
RAC: 0
United States
Message 338251 - Posted: 15 Jun 2006, 21:15:21 UTC - in response to Message 338061.

Go to "Your Account / "General Preferences" change the value "On multiprocessors, use at most 2 processors" to 8 CPUs. After you have changed the parameters, you have go to do a boinc_client -update_project http://setiathome.berkeley.edu, or update it via the boinc manager.
After the change, the boinc client will download more WUs and start a app for all 8 CPUs.


Thanks so much...

gt40
Send message
Joined: 22 Apr 02
Posts: 1
Credit: 6,802,838
RAC: 11,220
United States
Message 351240 - Posted: 28 Jun 2006, 20:48:36 UTC - in response to Message 338061.
Last modified: 28 Jun 2006, 20:49:46 UTC

Go to "Your Account / "General Preferences" change the value "On multiprocessors, use at most 2 processors" to 8 CPUs. After you have changed the parameters, you have go to do a boinc_client -update_project http://setiathome.berkeley.edu, or update it via the boinc manager.
After the change, the boinc client will download more WUs and start a app for all 8 CPUs.

This does not work on any of my multi-processor systems. I have two boxes running 2 dual-core Xeon processors. BOINC reports 4 CPUs, but only two work units are being run, despite my setting the maximum number of CPUs to 4. I set this parameter two weeks ago, so BOINC has had plenty of time to update itself.
____________

Dotsch
Volunteer tester
Avatar
Send message
Joined: 9 Jun 99
Posts: 2422
Credit: 843,145
RAC: 30
Germany
Message 351249 - Posted: 28 Jun 2006, 21:02:33 UTC - in response to Message 351240.

This does not work on any of my multi-processor systems. I have two boxes running 2 dual-core Xeon processors. BOINC reports 4 CPUs, but only two work units are being run, despite my setting the maximum number of CPUs to 4. I set this parameter two weeks ago, so BOINC has had plenty of time to update itself.

It could be, that the boinc client has done this, please try to do manualy a update project via the boinc manager, or with the boinc client (boinc_client -update_project http://setiathome.berkeley.edu)

____________

Questions and Answers : Unix/Linux : seti on multiple cores system

Copyright © 2014 University of California