5 Replies Latest reply on Mar 26, 2013 9:59 PM by himanshu.gautam

    Double Precision on Radeon HD5850


      Hi, there. I need help getting double precision working in my openCL application on the GPU.



      Double precision works fine on the CPU, but when I try to run it on the GPU it fails.


      My Graphics Cards is  ATI Radeon HD5850 which is as far as I can tell, should work http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units#Evergreen_.28HD_5xxx.29_series


      It tells me it can't enable cl_khr_fp64 or cl_amd_fp64, but since my graphics card should be able to run 64bit, I'm at loss for why.


      I'm using the 13_1 drivers for my graphics card, and I have version 2.8 of the SDK.




      Windows 7 64 bit

      ATI Radeon HD5850

      Visual Studio 2010 Professional

      13_1 mobility Graphics drivers.

      AMD APP SDK 2.8



      Thanks in advance, any help is appreciated.