Interconnect method for implementing scale-up servers

An method for implementing a Symmetric Multi-Processing (“SMP”) system, the method comprising:

• providing a first server including a first processor electrically connected to a second processor;
• providing a second server including a third processor electrically connected to a fourth processor;
• providing a first connection plane between the first and second servers;
• providing a second connection plane between the first and second servers;
• providing a first connection between one of the first and second processors and one of the third and fourth processors via the first connection plane;
• providing a second connection between one of the first and second processors and one of the third and fourth processors via the first connection plane;
• providing a third connection between one of the first and second processors and one of the third and fourth processors via the second connection plane;
• and
• providing a fourth connection between one of the first and second processors and one of the third and fourth processors via the second connection plane;
• wherein each of the processors of each one of the servers is connected to each of the processors of the other one of the servers.

An apparatus for implementing a Symmetric Multi-Processing (“SMP”) system, the apparatus comprising:

• a first server including a first processor electrically connected to a second processor;
• a second server including a third processor electrically connected to a fourth processor;
• a third server including a fifth processor electrically connected to a sixth processor;
• a fourth server including a seventh processor electrically connected to an eighth processor;
• a first connection plane, wherein cache-coherent links are provided between the processors of the first server and the processors of the fourth server via the first connection plane and wherein cache-coherent links are provided between the processors of the second server and the processors of the third server via the first connection plane;
• a second connection plane, wherein cache coherent links are provided between the processors of the first server and the processors of the second server via the second connection plane and wherein cache-coherent links are provided between the processors of the third server and the processors of the fourth server via the second connection plane.