Posts by Keefy

1) Message boards : Number crunching : Rosetta tasks not leaving memory (Message 74924)
Posted 18 Jan 2013 by Keefy
Post:
I have started to notice something possibly similar, i have my boinc (i only process rosetta) set to suspend during office hours and to not remain in memory once suspended. Sometimes this works and other times not.
The clue may be to do with checkpointing and duration. i exited the boinc manager and actually asked it to close and remove the apps from memory, when i restarted the boinc manager the tasks restarted processing from scratch as if there was (to my perspective) no checkpoint to continue from.
Now, my tasks are set to run for 24 hours with, as i say, suspension during office hours, the only ones i have seen properly remove from memory when suspended, are those that have run longer than 8 and a bit to 9 hours.
My local preferences say checkpoint at most every 60 seconds, i have upped that to 30 minutes but i don't know if this is a boinc or rosetta issue and what determines the checkpoint frequency.
Assuming my observations are accurate that is. i haven't spent much time on this but I'm sure i found another thread that mentioned checkpointing as being the prerequisite before memory removal, i may be wrong.
I have just checked the properties on a task that won't leave memory, it has run 8 hours and has NO value for cpu time at last checkpoint.






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