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OpenCL not recognizing GPU correctly.

Question asked by ongle on Apr 23, 2013
Latest reply on Apr 27, 2013 by ongle

I have a strange issue with OpenCL/APP 2.8 on my Ubuntu 12.10 box. I had one 5830 and then added a 6850. The aticonfig utility sees them correctly but opencl has a duplicate entry for the 5830.

 

 

$ aticonfig --lsa

* 0. 01:00.0 ATI Radeon HD 5800 Series 

  1. 02:00.0 AMD Radeon HD 6800 Series



* - Default adapter

$ clinfo | grep "Board name\|Device Topology"

  Board name:                    ATI Radeon HD 5800 Series 

  Device Topology:               PCI[ B#2, D#0, F#0 ]

  Board name:                    ATI Radeon HD 5800 Series 

  Device Topology:               PCI[ B#2, D#0, F#0 ]


 

I can't figure out how to get OpenCL to reconfigure itself.

 

I have previously had a similiar configuration (one 6850 and one 5830 but in reversed PCI slots) and had no issues. I then removed the 6850 and replaced it with a second 5830 but I couldn't get that to work correctly. I was pretty sure OpenCL was confusing the two 5830s so I took one out and tried with just one, and that worked normally. I then put the 6850 in to see if it was having two identical cards that was the issue.

 

Any ideas?

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