Patent
System and method for synchronizing time across a computer cluster
TLDR
In this paper, a system for time synchronization in a computer cluster is provided, in which a master node sends a SYNC message including a first time stamp to a slave node.Abstract:
A system for time synchronization in a computer cluster is provided. For the system of the present invention a master node sends a SYNC message including a first time stamp to a slave node. The slave node adds a second time stamp and returns the SYNC message to the master node. The master node then adds a third time stamp to the SYNC message. Using the three time stamps, the master node determines if the time clock within the slave node leads or follows the time clock in the master node. The calculation does not depend on the assumption that transmission delays to the slave node are the same as the transmission delays from the node. If the time clocks do not match, the master node sends an INFO message to the slave node informing the slave node of the correct time for clocks within the computer cluster.read more
Citations
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References
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Patent
Probabilistic anonymous clock synchronization method and apparatus for synchronizing a local time scale with a reference time scale
TL;DR: In this article, a method for synchronizing local times, maintained at nodes within a network architecture with a reference time, with a node according to the invention can synchronize its local time with the reference time source either actively or in a passive, or eavesdropping, manner.
Patent
Method for monitoring the synchronization of clocks in computer networks
TL;DR: In this paper, a method for controlling clocks in computer networks of a hierarchical structure includes the continual synchronization of the clock modules provided in the individual network levels to the time of a central master clock by means of messages.
Patent
Method for referencing multiple data processors to a common time reference
TL;DR: In this article, a master clock is located at a central data gathering station and a slave clock is at one or more (functionally or spatially) remote stations, and the time signals are exchanged between the master clock at the central station and each slave clock at each corresponding remote station.
Patent
Anonymous time synchronization method
TL;DR: In this article, a method for synchronizing a local time maintained at a node within a network architecture with a reference time is provided, where the node determines a difference between a first time according to one of the time scales and a time related to second and third times according to the other time scale.
Patent
Method for adjusting clocks of multiple data processors to a common time base
TL;DR: In this paper, a master clock is located at a central data gathering station, and slave clocks are situated at one or more (functionally or spatially) remote stations. Time signals are exchanged between the master clock at the central station and each slave clock at a corresponding remote station.