System and method for a single logical ip subnet across multiple independent layer 2 (l2) subnets in a high performance ocmputing environment

A method for supporting a single logical IP subnet across multiple independent layer 2 subnets in a high performance computing environment, comprising:

• providing, at a computer comprising one or more microprocessors;
• a logical device, the logical device being addressed by a layer 3 address, wherein the logical device comprises a plurality of network adapters, each of the network adapters comprising a physical port, and
• a plurality of switches;
• arranging the plurality of switches into a plurality of discrete layer 2 subnets;
• and
• providing a mapping table at the logical device.

A non-transitory computer readable storage medium having instructions thereon for supporting a single logical IP subnet across multiple independent layer 2 subnets in a high performance computing environment, which when read and executed by a computer cause the computer to perform steps comprising:

• providing, at a computer comprising one or more microprocessors;
• a logical device, the logical device being addressed by a layer 3 address, wherein the logical device comprises a plurality of network adapters, each of the network adapters comprising a physical port, and
• a plurality of switches;
• arranging the plurality of switches into a plurality of discrete layer 2 subnets;
• and
• providing a mapping table at the logical device.