Have different <count> values for different coprocessors

[MarkJ]

Currently you can only specify a single <count>.5</count> parameter within app_info.xml per app. It is applied across all coprocessors of that type and doesn't allow for different values for different devices.

<coproc>

<type>CUDA</type> <count>1</count>

</coproc>

Example: Machine has a GTS250 and a GTX460 installed. User wants to run 1 wu at a time on GTS250 but 2 wu at a time on the GTX460.

Provide a mechanism where the user can have different <count> values per coprocessor device.

One possible way could be to allow the app_info to specify the device the <count> applies to in a similar fashion to the cc_config.xml <exclude_gpu> statements.

[davea]

This will have to wait until we change BOINC's GPU handling to accommodate different GPU models of the same vendor.