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OpenCL 2.0 driver version 1642 vs 1800

Question asked by mz24cn on Jun 27, 2015
Latest reply on Jun 28, 2015 by mz24cn

It is strange that I get different OpenCL driver results when repeatly installing same driver "amd-catalyst-15.5beta-64bit-win8.1-may27.exe"

The HW/SW enviroment is R9 295x2/A10-7870K/HD5870/Windows 10 preview/AMD 15.5beta driver

This is current GPU information result:

Name:AMD Accelerated Parallel Processing
Version:OpenCL 2.0 AMD-APP (1642.5)
Vendor:Advanced Micro Devices, Inc.
Profile:FULL_PROFILE
Extensions:cl_khr_icd cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_amd_event_callback cl_amd_offline_devices
Devices:
        Name:Hawaii
        Type:GPU
        Version:OpenCL 2.0 AMD-APP (1642.5)/1642.5 (VM)
        Global/Local Memory:4,294,967,296/32,768

        Name:Hawaii
        Type:GPU
        Version:OpenCL 1.2 AMD-APP (1642.5)/1642.5 (VM)
        Global/Local Memory:3,221,225,472/32,768

        Name:Spectre
        Type:GPU
        Version:OpenCL 1.2 AMD-APP (1642.5)/1642.5 (VM)
        Global/Local Memory:2,146,959,360/32,768

        Name:Cypress
        Type:GPU
        Version:OpenCL 1.2 AMD-APP (1642.5)/1642.5 (VM)
        Global/Local Memory:1,073,741,824/32,768

 

While sometimes I got different results for the same HW/SW. All version number (1642.5) changed to be (1800.x) (x is a number I forgot). The OpenCL version of the second and third GPUs changed to be 2.0. The global memory of the second GPU changed to be 4GB (same as the first GPU). But now I cannot get this 1800.x version result.

 

Why ?

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