Method and apparatus for synchronizing nodes in massively parallel systems
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Nov 15, 1999
filing date -
Nov 15, 1999
priority date (Note) -
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Abstract
A method, apparatus, article of manufacture, and a memory stricture for synchronizing nodes in configuring a massively parallel processing system is disclosed. The method comprises the steps of receiving a registration request from each of the non-coordinator nodes in the coordinator node and, after a registration request has been received from all of the non-coordinator nodes, sending a wakeup message from the coordinator node to each of the non-coordinator nodes to wake the non-coordinator nodes from a sleep state. In another embodiment of the invention, the method comprises the steps of transmitting a registration request from a non-coordinator node to a coordinator node; commanding the non-coordinator node to enter a sleep state; receiving a multicast wakeup message from the coordinator node in the non-coordinator node after a registration request is received from all of the non-coordinator nodes in the coordinator node; and waking the non-coordinator node in response to the wakeup message. The apparatus comprises a means for performing the steps described above, and the article of manufacture comprises a program storage device tangibly embodying computer instructions for performing the above method steps.
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