compute-exclusive/compute-prohibited mode ignored

Accelerated Computing CUDA CUDA Programming and Performance
1

This is using 3.0 on Suse 11.1. I set the compute mode of all gpus in the system to compute prohibited, and then I try running any example from the sdk and it still works! I don’t understand why the compute mode rules seem to be ignored or what I can do to fix it…any help would be appreciated. I have a different 3.0/Suse 11.1 system where everything works fine (ie cuda doesn’t work) - that system has an amd chip and this broken one has an i7.

Sample output:

aaa@synergy:~/NVIDIA_GPU_Computing_SDK/C/bin/linux/release> nvidia-smi -a -s
COMPUTE mode rules for GPU 0: 2
COMPUTE mode rules for GPU 1: 2
COMPUTE mode rules for GPU 2: 2
aaa@synergy:~/NVIDIA_GPU_Computing_SDK/C/bin/linux/release> ./reduction
./reduction Starting…

Using Device 0: GeForce GTX 470

Reducing array of type int

16777216 elements
256 threads (max)
64 blocks

Reduction, Throughput = 118.5042 GB/s, Time = 0.00057 s, Size = 16777216, NumDevsUsed = 1, Workgroup = 256

GPU result = 2139353471
CPU result = 2139353471

PASSED

Press to Quit…

2

what driver version are you using?

3

what driver version are you using?

4

195.36.15 on both machines.

5

195.36.15 on both machines.

6

Pretty sure that was not intended for use with GF100. Can you try 195.36.24?

http://www.nvidia.com/object/linux-display…-195.36.24.html

7

Pretty sure that was not intended for use with GF100. Can you try 195.36.24?

http://www.nvidia.com/object/linux-display…-195.36.24.html

8

Thanks, I’ll try and let you know. That would explain it, the computer that works is using a 260.

If it is the case, maybe the download link here http://developer.nvidia.com/object/cuda_3_0_downloads.html should be updated to this newer version of the driver…

Edited: That did fix the problem. Thanks Tim.

9

Thanks, I’ll try and let you know. That would explain it, the computer that works is using a 260.

If it is the case, maybe the download link here http://developer.nvidia.com/object/cuda_3_0_downloads.html should be updated to this newer version of the driver…

Edited: That did fix the problem. Thanks Tim.