Distributed computing

A method of requesting service from a remotely located integrated circuit die by transmitting service requests from an integrated circuit die having at least one transmission signal pin configured to transmit service requests to another integrated circuit die and at least one receiving signal pin configured to receive service requests from another integrated circuit die, the method comprising:

• determining a remote service requirement;
• transmitting a service request to a neighboring integrated circuit die;
• waiting to receive a first acknowledgement signal;
• waiting to receive a second acknowledgement signal negating the first acknowledgement signal;
• determining when a first time period has elapsed since the service request was transmitted without having received the first acknowledgment;
• determining whether or not a fault threshold has been breached in response to the elapsing of the first period;
• transmitting the service request to an alternate neighbor in response to a breach of the fault threshold;
• and
• re-transmitting the service request in response to a non-breach of the fault threshold;
• wherein determining, transmitting, and waiting are performed by electronic hardware;
• wherein the service request is transmitted from a transmission signal pin on the integrated circuit die to the neighboring integrated circuit die;
• and
• wherein the integrated circuit die is configured to receive the first acknowledgement signal and the second acknowledgement signal on the same transmission signal pin from which the service request is transmitted, thereby leaving a receiving signal pin configured to receive service requests from the neighboring integrated circuit die free for other communication during transmission of the service request and during receipt of the first acknowledgement signal and the second acknowledgement signal.

A method of processing service requests from a neighbor integrated circuit die using an integrated circuit die having a transmission signal pin configured to transmit service requests to the neighbor integrated circuit die and a receiving signal pin configured to receive service requests from the neighbor integrated circuit die, the method comprising:

• receiving a service request on the receiving signal pin;
• transmitting a first acknowledgement signal on the same receiving signal pin on which the service request is received in response to receiving the service request;
• transmitting a second acknowledgement signal on the same receiving signal pin on which the service request is received in response to satisfying at least one condition of the service request;
• wherein receiving and transmitting are performed by electronic hardware;
• and
• wherein the first acknowledgement signal indicates a non-acknowledgement of the service request, and the second acknowledgement signal indicates an acknowledgement of the service request.

An apparatus comprising:

• an integrated circuit die having at least one transmission signal pin configured to transmit service requests to another integrated circuit die and at least one receiving signal pin configured to receive service requests from another integrated circuit die;
• a controller configured to execute code;
• and
• non-transitory computer readable hardware memory storing code that when executed by the controller is configured to:
• determine a remote service requirement;
• transmit a service request to a neighboring integrated circuit die;
• wait to receive a first acknowledgement signal;
• wait to receive a message acknowledgement signal negating the first acknowledgement signal;
• wherein the first acknowledgement signal indicates a non-acknowledgement of the service request, and the second acknowledgement signal indicates an acknowledgement of the service request;
• wherein the service request is transmitted from a transmission signal pin on the integrated circuit die to the neighboring integrated circuit die;
• and
• wherein the integrated circuit die is configured to receive the first acknowledgement signal and the second acknowledgement signal on the same transmission signal pin from which the service request was transmitted, thereby leaving a receiving signal pin configured to receive service requests from the neighboring integrated circuit die free for other communication during transmission of the service request and during receipt of the first acknowledgement signal and the second acknowledgement signal.

An apparatus comprising:

• an integrated circuit die having at least one transmission signal pin configured to transmit service requests to another integrated circuit die and at least one receiving signal pin configured to receive service requests from another integrated circuit die;
• a controller configured to execute code;
• and
• non-transitory computer readable hardware memory storing code that when executed by the controller is configured to:
• determine a remote service requirement;
• transmit a service request to a neighboring integrated circuit die;
• wait to receive a first acknowledgement signal;
• wait to receive a second acknowledgement signal negating the first acknowledgement signal;
• determine when a first time period has elapsed since the service request was transmitted without having received the first acknowledgment;
• determine whether or not a fault threshold has been breached in response to the elapsing of the first period;
• transmit the service request to an alternate neighbor in response to a breach of the fault threshold;
• and
• re-transmit the service request in response to a non-breach of the fault threshold;
• wherein the service request is transmitted from a transmission signal pin on the integrated circuit die to the neighboring integrated circuit die;
• and
• wherein the integrated circuit die is configured to receive the first acknowledgement signal and the second acknowledgement signal on the same transmission signal pin from which the service request is transmitted, thereby leaving a receiving signal pin configured to receive service requests from the neighboring integrated circuit die free for other communication during transmission of the service request and during receipt of the first acknowledgement signal and the second acknowledgement signal.

An apparatus comprising:

• an integrated circuit die having at least one transmission signal pin configured to transmit service requests to another integrated circuit die and at least one receiving signal pin configured to receive service requests from another integrated circuit die;
• a controller configured to execute code;
• and
• non-transitory computer readable hardware memory storing code that when executed by the controller is configured to:
• receive a service request;
• transmit a first acknowledgement signal in response to receiving the service request;
• and
• transmit a second acknowledgement signal in response to satisfying at least one condition of the service request;
• transmit the service request to another integrated circuit die during the transmission of the second acknowledgement signal;
• wherein the first acknowledgement signal indicates a non-acknowledgement of the service request, and the second acknowledgement signal indicates an acknowledgement of the service request.