Problem with events timing with Linux

Discussion created by flare5009 on Jul 27, 2011
Latest reply on Aug 12, 2011 by asy1502
On Linux AMD-APP-SDK-v2.4-lnx64 reports inf bandwidth and gflops as event start and end time are same


I have linux ubuntu natty and windows 7 running on same machine. Problem is that in windows the AMD APP-SDK examples timing seems work properly but in linux they do not.

What i see as the source of the problem is that clGetEventProfilingInfo returns same value for start and end time (in MatrixMultiplication.cpp from samples).

Any idea what is going on here?

The results seems to be correct and everything (that i have tested so far) seems to work (though for some reason texture writes are also slower than with nvidia gts 250 ?)

I have installed AMD-APP-SDK-v2.4-lnx6 on this week from ATI-website and ati driver is from ubuntu natty repository. Catalyst control versions shows Driver version 8.84.60 (2D Driver version).