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Selecting a master processor from an ambiguous peer group

  • US 8,929,251 B2
  • Filed: 01/08/2013
  • Issued: 01/06/2015
  • Est. Priority Date: 12/15/2011
  • Status: Active Grant
First Claim
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1. A method of electing a master processor from a plurality of processors, comprising:

  • storing in a first portion of a shared memory a first unique identifier for a first processor of the plurality of processors, wherein the shared memory is accessible by the plurality of processers via a network fabric;

    traversing the network fabric comprising the plurality of processors to identify a network topology, while traversing the network fabric to identify the network topology;

    reading, from a second portion of the shared memory, a second unique identifier for a second processor of the plurality of processors,determining, based on one or more criteria, a nominee identifier from among the first and the second unique identifiers, andstoring the nominee identifier in a register in the first portion of the shared memory, wherein the nominee identifier is read from the register by one of the plurality of processors; and

    electing the master processor that corresponds to the nominee identifier.

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