A logical clock is a mechanism for capturing chronological and causal relationships in a distributed system. Often, distributed systems may have no physically...
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Lamport timestamp (redirect from Lamport logical clock)
The Lamport timestamp algorithm is a simple logical clock algorithm used to determine the order of events in a distributed computer system. As different...
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the sending process's logical clock. A vector clock of a system of N processes is an array/vector of N logical clocks, one clock per process; a local "largest...
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Happened-before (category Logical clock algorithms)
the happened-before relation unless they use a logical clock, like a Lamport clock or a vector clock. This allows one to design algorithms for mutual...
4 KB (637 words) - 11:59, 21 January 2024
Protocol (UDP) message passing. Lamport timestamps and vector clocks are concepts of the logical clock in distributed computing. In a wireless network, the problem...
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A matrix clock is a mechanism for capturing chronological and causal relationships in a distributed system. Matrix clocks are a generalization of the notion...
1 KB (139 words) - 21:15, 27 March 2023
Version vector (category Logical clock algorithms)
With Dotted Version Vectors. ACM PODC, pp. 335-336, 2012. Why Logical Clocks are Easy (Compares Causal Histories, Vector Clocks and Version Vectors)...
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provides a concrete syntax to handle logical clocks. The term logical clock refers to Leslie Lamport's logical clocks and its usage in CCSL is directly inspired...
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Flip-flop (electronics) (redirect from Clocked D-latch)
the master latch and clock signal. For a positive-edge triggered master–slave D flip-flop, when the clock signal is low (logical 0) the "enable" seen...
56 KB (7,192 words) - 03:37, 31 July 2024
The engine also exploits a Hybrid Logical Clock that combines coarsely-synchronized physical clocks with Lamport clocks to track causal relationships. The...
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Bitwise operation (redirect from Bitwise logical operation)
bitwise NOT, or bitwise complement, is a unary operation that performs logical negation on each bit, forming the ones' complement of the given binary...
30 KB (3,812 words) - 15:41, 27 July 2024
Why Logical Clocks Are Easy. Comm. ACM 59(4), pp. 43–47, April 2016. Charron-Bost, Bernadette (July 1991), "Concerning the size of logical clocks in distributed...
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"The Part-Time Parliament". These papers relate to such concepts as logical clocks (and the happened-before relationship) and Byzantine failures. They...
17 KB (1,536 words) - 20:47, 30 July 2024
distributed systems (e.g. the bakery algorithm). Developed the concept of a logical clock, enabling synchronization between distributed entities based on the...
67 KB (1,515 words) - 16:41, 10 August 2024
for bit synchronization when a separate clock signal is not available. Since NRZ is not inherently a self-clocking signal, some additional synchronization...
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Arithmetic logic unit (redirect from Arithmetical and logical unit)
next clock, are allowed to propagate through the ALU and to the destination register while the CPU waits for the next clock. When the next clock arrives...
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Logic gate (redirect from Logical gate)
A logic gate is a device that performs a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output...
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These have the property that either Data or Strobe changes its logical value in one clock cycle, but never both. More precisely data is transmitted as-is...
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Central processing unit (redirect from Logical processor)
of these early synchronous CPUs ran at low clock rates compared to modern microelectronic designs. Clock signal frequencies ranging from 100 kHz to 4 MHz...
100 KB (11,315 words) - 16:18, 16 August 2024
Instructions per cycle (redirect from Instructions Per Clock)
called instructions per clock, is one aspect of a processor's performance: the average number of instructions executed for each clock cycle. It is the multiplicative...
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Synchronous circuit (category Clock signal)
the next clock occurs, so the behaviour of the whole circuit can be predicted exactly. Practically, some delay is required for each logical operation...
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Twin paradox (redirect from Clock paradox)
Therefore, the twin paradox is not actually a paradox in the sense of a logical contradiction. There is still debate as to the resolution of the twin paradox...
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Oracle VM Server for SPARC (redirect from Logical Domain)
Logical Domains (LDoms or LDOM) is the server virtualization and partitioning technology for SPARC V9 processors. It was first released by Sun Microsystems...
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January 16, 2016. Retrieved March 18, 2014. Lamport, L. (1978). "Time, clocks, and the ordering of events in a distributed system" (PDF). Communications...
79 KB (3,511 words) - 23:43, 11 August 2024
site. ts refers to the local time stamp of the system according to its logical clock Requesting site: A requesting site P i {\displaystyle P_{i}} sends a...
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synchronous algorithms in asynchronous systems. Logical clocks provide a causal happened-before ordering of events. Clock synchronization algorithms provide globally...
50 KB (5,629 words) - 18:44, 17 August 2024
site's name, and the current timestamp of the system according to its logical clock (which is assumed to be synchronized with the other sites) Receiving...
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Fortran 95 language features (section LOGICAL)
There are only two basic values of logical constants: .TRUE. and .FALSE.. Here, there may also be different kinds. Logicals don't have their own kind inquiry...
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5546778°E / 38.1922611; 15.5546778 The astronomical clock of Messina is an astronomical clock constructed by the Ungerer Company of Strasbourg in 1933...
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if the clock rate differs. Dynamic RAM is arranged in a rectangular array. Each row is selected by a horizontal word line. Sending a logical high signal...
17 KB (1,071 words) - 12:01, 25 May 2024