Hi all:
Recently I installed catalyst 10.11. It's bettter than 10.11 in that now two GPUs are working (in 10.10 only GPU0 works). I wrote a simple program that multiplies nature number by 2, below are the testing result. ( I run export DISPLAY=:0 before every run):
Verifying results for GPU0 : the first 10 reulits for this GPU is:0.000000,2.000000,4.000000,6.000000,8.000000,10.000000,12.000000,14.000000,16.000000,18.000000,Passed!
Verifying results for GPU1 : the first 10 reulits for this GPU is:0.000000,2.000000,4.000000,6.000000,8.000000,10.000000,12.000000,14.000000,16.000000,18.000000,Passed!
Verifying results for GPU2 : the first 10 reulits for this GPU is:-84904433160159100468813069988594188288.000000,-nan,-nan,-inf,-42369139830342992992350047053029572608.000000,-nan,-nan,-20687103343954414804234249086959616.000000,-nan,-nan,Failed!
Verifying results for GPU3 : the first 10 reulits for this GPU is:18558779392.000000,0.000000,0.000000,25.004196,-0.000000,-1674.125488,0.000000,-4.253963,0.000217,0.000000,Failed!
So is there any settings that I have to change or I should wait for even newer catalyst ?
I really appreciate any comments on this .
ThomasUCF
Oh, by the way , my system is 2 HD5970s, CPU is i7. OS is Ubuntu 10.4.
hi thomasUCF,
As per AMD support for second device in 5970 is not available as of now.So you will have to wait for future releases.
Hi Himanshu:
Even in Linux System? I just need a definite answer so I can stop on this. As a Linux beginner I always try different commands which I don't understand and install different apps, and some times that made my system collapse.
Thanks a lot.
I think you are aware that some users have been able to use multidevices for 5970.http://forums.amd.com/devforum/messageview.cfm?catid=390&threadid=140518&enterthread=y
But AMD officially do not support it for now and advices users not to use the second device of 5970.