Hello, after the completion of my last WU (my second WU in this project), BOINC requests a new one and always receives the message "GPUGRID Scheduler request completed: got 0 new tasks".
The message has been received a lot of times and my GPU is not being used by another project.
I changed all parameters and no result.
What can i do?
Thanks.

Your computer is hidden. The CA's (and other crunchers) can not advise without being able to see your setup.

Ok, i modified my computer visibility.
After three hours later of the upload of my last WU i received a new WU, but i think that isn't normal have a lot of error messages before.
Thanks.

Computers hidden

Computers hidden

It always takes a while for an 'unhide' change to take effect. Try looking again a bit later.

The GT 330M is basically a clocked down mobile version of the GT220. It only has 48 cuda cores and is not a recommended GPU for running GPUGrid; it can just about complete a task within 48h. You had one task error after 6.20 sec. This is not a problem; as it would not effect your overall contribution. The two tasks you completed were very slow. I suggest that if you wish to continue to crunch on that system that you use swan_sync=0 and also keep one CPU core/thread free. Also make sure your cards Power management is set to Prefer Maximum Performance (NVidia control panel, Manage 3D settings, Power management mode).
While the slowness of your card, the one failure and task abortions may have suspended task acquisition, there were some minor issues with the server over the last 24h that may have influenced task allocation to your system.

I understand. But how i can leave one thread free? in BOINC settings? if configure boinc to use 75% of cores (3 of 4) GPU will use it?.
And what is the utility of swan_sync=0? i writted this variable to global system and was no effect.

Yes, in Boinc Manager use 75% of CPU cores means one core/thread is free for a quad core/thread CPU. You should also use swan_sysn=0, keep a low cache and report tasks immediately.

Read this thread,
http://www.gpugrid.net/forum_thread.php?id=2123