View Full Version : blcoking clReleaseCommandQueue crashes

04-12-2010, 10:12 AM
I currently used last AMD OpencCL implementation on and intel core quad.

I enqueued some commands in a command queue (buffer read/write/copy, ndrange, ...), and I release the command queue used.

clReleaseCommandQueue seems to be blocking and crashes at end of execution...

Is the blocking and crash behaviors understandable ?
Specification seems to say that it should only decrement a reference counter in that case...

04-12-2010, 10:20 AM
Calling clReleaseCommandQueue should never crash as long as you call it only once for any call to clRetain... plus once for the initial creation. E.g., command queues should have a effective user-level retain count of 1 on creation. (They may have extra internal retain counts, but if it crashes when you call it once then there's a bug in the implementation.)

04-12-2010, 02:56 PM
nVidia implementation works fine : non blocking and no crash.