Multiple FPGAs with OpenVINO

[jliu32]

Suppose I have more than one Arria 10 Development Kits installed on the motherboard, how can I select which board to use for a given inference request?

[Monique_J_Intel]

Hi James,

To use multiple FPGAs you can do so by specifying the KEY_DEVICE_ID and the number. In this example I have 2 FPGAs:

ExecutableNetwork  excutable_network1 = plugin.LoadNetwork(network, {InferenceEngine::PluginConfigParams::KEY_DEVICE_ID, "0"});
ExecutableNetwork  excutable_network1 = plugin.LoadNetwork(network, {InferenceEngine::PluginConfigParams::KEY_DEVICE_ID, "1"});

Then from here you can create the infer request for each FPGA respectively.

Kind Regards,

Monique Jones

[jliu32]

Hi Monique,

   Thanks for the prompt reply. Does device id "x" in OpenVINO map to "aclx" seen by aocl then? 

Regards,

James

[Monique_J_Intel]

Hi James,

Yes, that is correct.

Kind Regards,

Monique Jones

[Shawn_S_Intel]

The code that Monique specified appears to require double curly braces for compilation:

ExecutableNetwork executable_network = plugin.LoadNetwork(network, {{InferenceEngine::PluginConfigParams::KEY_DEVICE_ID, "0"}});