How to prevent master thread from being scheduled?

[vinjn]

enkiTS is an excellent library to serve my project, which is running multiple OpenGL contexts on multiple GPUs.
In my design, master thread is running light-weighted workloads, which means it should never be scheduled to run any ITaskSet tasks.
Is it possible?

[dougbinks]

Yes this is possible. Only the threads created by enkiTS will run tasks by themselves. The thread which initializes enkiTS can tasks using the WaitforTask() call but you can use the priority system to prevent certain tasks from running when this is called. There also exists a pinned task system for explicitly running tasks on certain threads. In your case I recommend the master thread initializes enkiTS and you should then be able to schedule tasks to be run which will then not run on the master thread.

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On Sun, 15 Sep 2019, 17:01 Vinjn Zhang, ***@***.***> wrote: enkiTS is an excellent library to serve my project, which is running multiple OpenGL contexts on multiple GPUs. In my design, master thread is running light-weighted workloads, which means it should never be scheduled to run ITaskSet tasks. Is it possible? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#38?email_source=notifications&email_token=AAGVD4WA26KBHNINJZR3SILQJZE6NA5CNFSM4IW25QCKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4HLOAE4Q>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAGVD4TFF4GIGCZUEB5P7XLQJZE6NANCNFSM4IW25QCA> .

[vinjn]

Thanks @dougbinks

you can use the priority system to prevent certain tasks from running when this is called.

Can you give more details? It seems I need to use WaitforTask and ICompletable::m_Priority to achieve it. But how?

[dougbinks]

You only need to run WaitforTask if you need to wait for the task. Alternatively you can poll for the task to complete and continue running. If you want to wait for a task to complete, but not run other tasks, you can give that task a high priority, other tasks lower priorities and when you wait for the high priority task you specify to only run high priority tasks whilst waiting. See the readme and priorities example for code.

[dougbinks]

I think this question is now answered, so I'm going to close it unless there are any further questions or issues on this topic.