First Brook call is sloooooooowww

Discussion created by BarsMonster on Mar 7, 2009
Latest reply on Sep 5, 2009 by gsteri1

Hi, I've got excellent performance of my application on Brook platform, but very first brook kernel takes ~4000ms.

kernel function itself have around 25 streams, and amount of data transferred each call is around 1Mb. 2nd and later calls are fast & perfect (~90ms).

Any clues?

Right now I have to measure performance of my application, so I have to do first "dummy" call , and bench second :-S