Scalable optical broadcast interconnect

1. An apparatus, comprising a modular interconnect including an mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric, wherein the mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric is non-blocking and congestion free, and wherein m is an integer≧2 and n is an integer≧2,

wherein the interconnect fabric includes no switches and no routers,

wherein the mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric includes m direct-broadcast, point-to-point n-by-n interconnects each of which is non-blocking and congestion free and

wherein the mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric includes m electro-optic node interface controllers, each of the m electro-optic node interface controllers coupled to each of the m direct-broadcast, point-to-point n-by-n interconnects.

2. The apparatus of claim 1 , further comprising mn nodes coupled both to the m direct-broadcast, point-to-point n-by-n interconnects and to the m electro-optic node interface controllers.

3. The apparatus of claim 1 , further comprising i) another direct broadcast n-by-n interconnect coupled to each of the m electro-optic node interface controllers and ii) another electro-optic node interface controller coupled both to the another direct-broadcast n-by-n interconnect and each of the m direct broadcast n-by-n interconnects.

4. The apparatus of claim 3 , wherein the another direct broadcast n-by-n interconnect is coupled both to one of the m electro-optic node interface controllers and to the another electro-optic node interface controller via a duplication fan-out device.

5. The apparatus of claim 4 , further comprising (m+1)n nodes coupled both to a) the m direct-broadcast, point-to-point n-by-n interconnects and b) the another direct broadcast n-by-n interconnect and to a) to the m electro-optic node interface controllers and b) the another electro-optic node interface controller.

6. A method, comprising operating a modular interconnect including an mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric, wherein the mn-by-mn fully connected, direct broadcast, point-to-point, all-to-all interconnect fabric is non-blocking and congestion free, wherein m is an integer≧2 and n is an integer≧2, including distributing each of mn inputs to each and every one of mn outputs,

wherein operating includes inputting n inputs to a first direct-broadcast, point-to-point n-by-n interconnect and inputting n+1 through 2n inputs to a second direct-broadcast, point-to-point n-by-n interconnect and

wherein operating includes distributing a first copy of the n inputs from the first direct-broadcast, point-to-point n-by-n interconnect to a first node interface controller, distributing a second copy of the n inputs from the first direct-broadcast, point-to-point n-by-n interconnect to a second node interface controller, distributing a first copy of the n+1 through 2n inputs from the second direct-broadcast, point-to-point n-by-n interconnect to the first node interface controller and distributing a second copy of the n+1 through 2n inputs from the second direct-broadcast, point-to-point n-by-n interconnect to the second node interface controller.

7. The method of claim 6 , further comprising extending the modular interconnect wherein operating includes

inputting another n inputs to another direct-broadcast, point-to-point n-by-n interconnect,

distributing a first copy of the another n inputs from the another direct-broadcast, point-to-point n-by-n interconnect to the first node interface controller,

distributing a second copy of the another n inputs from the another direct-broadcast, point-to-point n-by-n interconnect to the second node interface controller,

distributing another copy of the first n inputs from the first direct-broadcast, point-to-point n-by-n interconnect to another node interface controller via a first duplication fan-out device,

distributing another copy of the second n inputs from the second direct-broadcast, point-to-point n-by-n interconnect to the another node interface controller via a second duplication fan-out device and

distributing another copy of the another n inputs from the another direct-broadcast, point-to-point n-by-n interconnect to the another node interface controller via another duplication fan-out device.