Optimized write streaming with write cancellation

A method comprising:

• at an order controlling interconnect circuit node of a network:
• transmitting a plurality of ordered outgoing write-push requests, each outgoing write-push request specifying a target node of the network to which that write-push request is to be transmitted, and the plurality of outgoing write-push requests including a first write-push request and one or more subsequent second write-push requests;
• monitoring incoming “ready” response messages from target nodes that receive a write-push message of the outgoing ordered write-push requests, a “ready” response message indicating that the target node is ready to control observability of data associated with a write-push;
• when a “ready” response message has not been received for the first write-push request within a designated time period:
• sending a cancellation request message to the target node of the oldest second write-push request one or more second write-push requests;
• and
• subsequent to sending the cancellation request messages, sending a continuation request message to the target node of an oldest write-push request of the one or more second write-push requests when a “ready” response message has been received for the first write-push request.

A non-transitory computer-readable medium storing computer-readable code for fabrication of an interconnect node for providing ingress to a data processing network, interconnect node configured to couple, via an interconnect circuit, to one or more target nodes providing network egresses, the order controlling interconnect circuit node including:

• an order controlling interconnect circuit node configured to couple to an interconnect circuit of a network and to one or more target nodes, the order controlling interconnect circuit node including:
• transmitting interface circuitry configured to transmit a plurality of ordered outgoing write-push requests, each outgoing write-push request specifying a target node to which that write-push request is to be transmitted, and the plurality of outgoing write-push requests including a first write-push request and one or more subsequent second write-push requests, the transmitting interface circuity further configured to send outgoing cancellation request messages and outgoing continuation request messages to the one or more target nodes;
• message receiving interface circuitry configured to receive incoming “ready” response messages from target nodes that receive a write-push request of the outgoing write-push requests, a “ready” response message indicating that the target node is ready to control observability of data associated with write-push request;
• and
• control circuitry configured to:
• monitor incoming “ready” response messages at the message receiving circuitry;
• and
• control the message transmitting interface circuity to:
• when a “ready” response message has not been received for the first write-push request within a designated time period:
• send a cancellation request message to the target node of the oldest write request of the one or more second write-push requests;
• and
• subsequent to sending the cancellation request message, send a continuation request message to the target node of the oldest write-push request of the one or more second write-push requests when a “ready” response message has been received for the first write-push request.