Packet format for a distributed system

A non-transitory computer readable medium storing instructions that when executed by a processor perform a method of communicating a bus transaction, the method comprising:

• receiving from a network a packet that wraps a bus transaction;
• unwrapping the packet to generate the bus transaction;
• and
• executing the bus transaction;
• wherein said packet includes an opcode describing the type of bus transaction, and one or more control signals of the bus transaction map directly to one or more bits of the opcode.

A non-transitory computer readable medium storing instructions that when executed by a processor perform a method of preparing a bus transaction for remote execution, the method comprising:

• detecting a bus transaction on a bus located at a first node;
• and
• wrapping the bus transaction in a packet for transmission over a network, the packet including an opcode and a destination address;
• wherein the destination address identifies a memory location associated with the bus transaction at a second node.

A non-transitory computer readable medium storing instructions that when executed by a processor perform a method of executing a bus transaction for remote execution, the method comprising:

• receiving a packet at a first node on a network, from a second node on the network, the packet including an opcode and a destination address, wherein the destination address identifies a memory location associated with the bus transaction at the first node;
• testing a checksum associated with the packet;
• transmitting an acknowledgement to the second node according to the checksum test;
• unwrapping the bus transaction from the packet;
• and
• generating a local bus transaction, based on the received bus transaction, on a bus of the first node.