1. A circuit arrangement, comprising: a plurality of processing nodes coupled to one another over a shared network; and a plurality of address translation data structures respectively disposed in the plurality of processing nodes; wherein a first processing node among the plurality of processing nodes is configured to decode a translation management instruction defined in an instruction set for the first processing node, and in response to decoding the translation management instruction, perform a first, local operation on the address translation data structure in the first processing node and initiate a second, remote operation on the address translation data structure in a second processing node among the plurality of processing nodes.