Questions and Answers :
Windows :
Boinc/sixtrack failure to correctly allocate multitasking of WU’s
Message board moderation
| Author | Message |
|---|---|
|
Send message Joined: 25 Oct 04 Posts: 27 Credit: 1,205 RAC: 0 |
Bonic 4.09 / sixtrack 4.47 lockup When there is low work and only 1 work unit being processed (rather than the usually 2) Bonic / sixtrack locks up It has done this a number of times causing the loss of 1 wu so far As it�s a multiprocessor system with 4 available CPU�s the option is set for sixtrack to use 2 of these I�ve been observing the situation and its consistent , as soon as 1 of the last 2 units are processed the cpu time remains the same usual 50% but further study shows that the o/s time shows a marked increase when only 1 wu is being processed Feel that boinc/sixtrack is failing to resolve the fact that just one of the 2 available slots have work and is trying to start the other process without any causing the error A similar problem also occurs if the computer is restarted when your server is down as it cannot get the preferences from the site I�m not able to determine if it�s a problem with boinc or sixtrack though Other than this it works fine o/s is windows 2003 enterprise server cpu type 2 * Intel xeon 2 Ghz no other boinc project�s being processed Dave |
 Thierry Van Driessche Send message Joined: 1 Sep 04 Posts: 157 Credit: 82,604 RAC: 0 
|
With Boinc v4.09 used on a HT PC and the last WU is crunched, Boinc eats 50% of CPU power. This problem has been fixed with Boinc v4.13. You can download that version here. LHC works fine with that version. Greetings from Belgium |
|
Send message Joined: 25 Oct 04 Posts: 27 Credit: 1,205 RAC: 0 |
i was previously using 4.13 on seti but had problems with it in that it was stoping other apps starting up or letting them start but real slow trying it again it appears to be ok at the moment on lhc time will see .... Dave |
|
Send message Joined: 28 Sep 04 Posts: 8 Credit: 8,620 RAC: 0 |
> With Boinc v4.09 used on a HT PC and the last WU is crunched, Boinc eats 50% > of CPU power. > This problem has been fixed with Boinc v4.13. You can download that version <a> href="http://setiweb.ssl.berkeley.edu/download.php">here[/url]. > > LHC works fine with that version. I have also experienced this in the past when I was down to a single workunit, but on a 2-processor system, so it wasn't just specific to HT processors. I haven't had any issues with this occurring since 4.13, but I also have made sure that I always have enough work across CPDN, Seti, and LHC to keep both busy at all times. |
|
Trane Francks Send message Joined: 18 Sep 04 Posts: 71 Credit: 28,399 RAC: 0 |
The full-load-on-idle-CPU-core issue is solved in 4.13. |
©2023 CERN