nodes = {
    node_1 = {
        type = "file",

        // Global settings for node_1

        in = {
            // Settings for node input, e.g., file to read from
        }
    },
    node_2 = {
        type = "infiniband",

        // Global settings for node

        in = {
            // Settings for node input, e.g., address of local
            // InfiniBand HCA to use
        },

        out = {
            // Settings for node output, e.g., remote InfiniBand
            // node to write to
        }
    }
},

paths = ( 
    {   
        in = "node_1",
        out = "node_2"
    }   
)