My ISP allows unlimited uploads 24/7, but only unlimited downloads from 2am-8am. I have a cap for downloads the remaining 18 hours of the day. In BOINC, I can limit the hours for network availability, but that covers both upload and download. Is there a way to allow projects to upload results any time of the day, but only allow downloading of new work during the 2am-8am window? I haven't seen anything obvious along these lines.

Thanks for any assistance.

No, there is no such option.

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You could do a script to set each project to No New Tasks at the end of your unlimited period, and another one to unset NNT after the beginning of your unlimited period.
(If Boinc can't ask for work it can't download anything, it'll only upload and report tasks as they complete)

http://boinc.berkeley.edu/wiki/Boinccmd_tool

--project URL operation
Do operation on a project, identified by its master URL. Operations:

reset: delete current work and get more;
detach: delete current work and don't get more;
update: contact scheduling server;
suspend: stop work for project;
resume: resume work for project;
nomorework: finish current work but don't get more;
allowmorework: undo nomorework
detach_when_done: detach project

Claggy

By the way, is there a way to tell BOINC to finish a running task (or tasks) but not start a next task on the list? Sometimes it would be handy to let BOINC just finish a current job while there are also tasks on the list.

I'm thinking of something like "don't start any task on this project" or "don't start any GPU task on this project" ... "but finish what you are doing right now".

Sorry, I might have missed some basic command...

Start the BOINC binary with the --exit_after_finish attribute.

E.g. in Windows,

boinc.exe --exit_after_finish

Exit just after finishing any job.

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Thank you very much!