REGISTER FILES FOR I/O PACKET COMPRESSION

摘要

Systems, apparatuses, and methods for reducing inter-node bandwidth are contemplated. A computer system includes requesting nodes sending transactions to target nodes. A requesting node sends a packet that includes a register identifier (ID) in place of a data value in the packet. The register ID indicates a register in the target node storing the data value. The register ID uses fewer bits in the packet than the data value. The data value may be a memory address referencing a memory location in the target node. The received packet may also include an opcode indicating an operation to perform on the targeted data value.

主权项

1. A method comprising:
sending from a requesting node to a target node a request to allocate a register for use in the target node, the request including an address of a memory location in the target node; receiving by the requesting node a response to the request from the target node; sending a packet that corresponds to one or more transactions from the requesting node to the target node; wherein the packet comprises:
an address of a memory location in the target node, if the response indicates a register has not been allocated for use; anda register identification (ID) of an allocated register in the target node, if the response indicates a register has been allocated for use by the requesting node.