Limit Gpu used on Ubuntu?

[Shadow_Storm56]

Is there a way to limit which GPUs are used in boinc on ubuntu? setting it to use device one but not 0 in the config does nothing. 

[Gorgon]

I know you have edit a config file to tell it to use all GPUs otherwise it will just use the best one detected.

 

I'm not certain how to influence which gets detected though if you just want to use one of the two.

 

Off the top of my head perhaps running BOINC in a vm with one GPU passed through?

 

@Ithanul?

[Ithanul]

The cc_config.xml needs to setup for multiple GPU usage.

Should look like this for multi GPU setup:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

The file needs to be placed in BoincData directory/folder.

 

To make it ignore a specific GPU, add either of these lines depending on GPU:

<ignore_cuda_dev>#</ignore_cuda_dev> or <ignore_ati_dev>#</ignore_ati_dev>

0 - first, 1 - second, 2 - third  :  place one of these into the spot that # is at.

cuda - nvidia

ati - amd

 

Example:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
<ignore_ati_dev>0</ignore_ati_dev>
<ignore_ati_dev>1</ignore_ati_dev>
</options>
</cc_config>

In this case, the first two cards are ignore and not used while a third install AMD card will be used for BOINC.