Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

NDRange Channel Implementation

I'm having some problems with the execution of two kernels communicating via channels in the NDRange environment. Basically there are two kernels with different numbers of work-items and different w...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Just something that i got wrong the first time i was playing with channels - are you using different queues for the two kernels? I believe the queues are in-order, so you need multiple queues if you want to launch multiple concurrent kernels. Otherwise the first kernel might be stalled on an empty channel, and since it doesn't return control, you cannot launch the second kernel from the host.