Abstract
Synchronization of the clocks is one of the essential thing for many applications in distributed systems. Clock synchronization is very important because they improve the performance and reliability of distributed systems. The main purpose of clock synchronization algorithms is to provide the common time to essential parts of the distributed systems. In this paper the problem considered is synchronization of clock with bounded clock drift and proposing a two level synchronization algorithm which synchronizes the processors local clocks by combining both internal and external clock synchronization.
Highlights
A distributed system is a system in which hardware and software components are located at different network networks, communicate and coordinate their actions only by message passing and doesn’t have any access to global clocks[1]
The other name for hardware clock is known as Timer
Lundelius et al [6] proposed an algorithm which was based on lower and upper bounds. This algorithm ensures that the clock values do not drift away from hardware clocks
Summary
A distributed system is a system in which hardware and software components are located at different network networks, communicate and coordinate their actions only by message passing and doesn’t have any access to global clocks[1]. Srikanth et al [4,5] proposed an algorithm based on averaging function which solves the Lamport’s clock synchronization problem These algorithms are completely based on reliable connected networks which will run in rounds for resynchronizing to correct the clock drift. Lundelius et al [6] proposed an algorithm which was based on lower and upper bounds This algorithm ensures that the clock values do not drift away from hardware clocks. A fault tolerant system proposed by Cristian et al [9,10 ] was based on combination of internal and external clock synchronization This fault tolerant algorithm will works well when we have 2F+1 are faulty out of F reference time servers. In this paper the internal synchronization is partially based on interactive convergence algorithm [3] but differs in the block of clock correction
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