Differently from NEST, in the current version of NeuronGPU nodes are not distributed automatically among MPI processes. The user must decide in advance how they are distributed, create nodes that must be connected remotely using the function RemoteCreate and connect nodes in different MPI process using the function RemoteConnect. Unfortunately this is a relatively new feature and is not yet documented.
Differently from NEST, in the current version of NeuronGPU nodes are not distributed automatically among MPI processes. The user must decide in advance how they are distributed, create nodes that must be connected remotely using the function RemoteCreate and connect nodes in different MPI process using the function RemoteConnect. Unfortunately this is a relatively new feature and is not yet documented.