Control wavelet for accelerated deep learning

A system comprising:

• a sending processing element comprising means for sending a fabric packet to a fabric, the fabric packet comprising one or more data elements, a virtual channel specifier, an index specifier, and a control specifier selectively specifying that the fabric packet is a control fabric packet, the means for sending comprising means for first executing a first instruction that comprises a first source operand specifying the one or more data elements and a destination operand specifying a destination operand descriptor, and wherein the destination operand descriptor specifies the virtual channel specifier, a location of the index specifier, and the control specifier;
• at least one receiving processing element comprising means for receiving the fabric packet from the fabric, and further comprising means for processing the fabric packet in accordance with at least the control specifier;
• one or more routing elements comprising means for routing the fabric packet via the fabric from the sending processing element to the at least one receiving processing element, the means for routing operable in accordance with the virtual channel specifier;
• wherein the virtual channel specifier is a first virtual channel specifier of a plurality of virtual channel specifiers;
• wherein each of the plurality of virtual channel specifiers is associated with a respective set of one or more sets of fabric packets;
• wherein the means for receiving comprises means for associating the fabric packet with the respective set associated with the first virtual channel specifier;
• wherein the means for processing comprises means for second executing a second instruction in the at least one receiving processing element and the second instruction comprises a second source operand specifying a second source operand descriptor;
• wherein the second source operand descriptor specifies the first virtual channel specifier, a terminate-on-control mode, and a second virtual channel specifier of the plurality of virtual channel specifiers;
• and
• wherein the means for processing further comprises
• means for terminating the second instruction, activating the respective set associated with the second virtual channel specifier, and selecting a fabric packet associated with the respective set associated with the second virtual channel specifier for processing,
• wherein the means for terminating, activating, and selecting is responsive to the fabric packet being older than any other fabric packets associated with the respective set associated with the first virtual channel specifier.