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Reducing Power Consumption While Synchronizing A Plurality Of Compute Nodes During Execution Of A Parallel Application

  • US 20090300385A1
  • Filed: 05/29/2008
  • Published: 12/03/2009
  • Est. Priority Date: 05/29/2008
  • Status: Active Grant
First Claim
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1. A method of reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application, the method comprising:

  • beginning, by each compute node, performance of a blocking operation specified by the parallel application, each compute node beginning the blocking operation asynchronously with respect to the other compute nodes;

    reducing, for each compute node, power to one or more hardware components of that compute node in response to that compute node beginning the performance of the blocking operation; and

    restoring, for each compute node, the power to the hardware components having power reduced in response to all of the compute nodes beginning the performance of the blocking operation.

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