OpenCL sample AMD APP SDK v2.3 hang the system on Ubuntu-SOLVED.

Discussion created by trinitrotoluene on Mar 1, 2011
Latest reply on Mar 30, 2011 by trinitrotoluene


The FluidSimulation2D and Mandelbrot OpenCL samples (under the x86_64 folder) hang the computer after 1 to 5 seconds of execution on the GPU. This is always reproductible. Execution on the CPU work fine. Those two samples work fine on the GPU again when I reinstall the previous AMD APP SDK V2.2. So I suspect a bug in the version 2.3 of the SDK. I have not tested other sample.

Since the FluidSimulation2D sample is only available with the version 2.3 of the SDK, I have saved the binary in another folder to be able to execute it with version 2.2. 


Here is the system configuration:


Linux AMD APP SDK v2.3 and v2.2 64 bits. 


Motherboard: Asus crosshair IV formula.

Processor: AMD Phenom II X6 1090T.

GPU: ATI Radeon HD5870 (Asus EAH5870/2DIS/1GD5/V2) with Catalyst 11.2 driver.  



Operating system: Ubuntu 10.10 64 bits. 


Kernel: Linux version 2.6.35-25-generic (buildd@crested) (gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) ) #44-Ubuntu SMP Fri Jan 21 17:40:44 UTC 2011



fglrxinfo output:


display: :0.0  screen: 0

OpenGL vendor string: ATI Technologies Inc.

OpenGL renderer string: ATI Radeon HD 5800 Series

OpenGL version string: 4.1.10524 Compatibility Profile Context



I can give more information if needed upon request.