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nomac
Journeyman III

get_global_offset() broken on GPU device

get_global_offset() seems to be broken on GPU devices

Hello,

I recently stumbled on a problem with the get_global_offset() function.

With Stream SDK 2.3 and Catalyst 10.12, the function did not return the expected results according to the specification. On the CPU it seemed to work. I use the C++ API and a Radeon HD5870.

Nevertheless, in order to support both device classes I had to work around the issue by passing the offset via another parameter to the kernel.

The problem can be easily reproduced by writing a simple kernel which writes the return value of the function to a buffer. Of course, some offset must be specified when the kernel is enqueued

Is anyone able to confirm this issue?

 

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