About: Shared snapshot objects

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In distributed computing, a shared snapshot object is a type of data structure, which is shared between several threads or processes. For many tasks, it is important to have a data structure, that can provide a consistent view of the state of the memory. In practice, it turns out that it is not possible to get such a consistent state of the memory by just accessing one shared register after another, since the values stored in individual registers can be changed at any time during this process. To solve this problem, snapshot objects store a vector of n components and provide the following two atomic operations: update(i,v) changes the value in the ith component to v, and scan returns the values stored in all n components.Snapshot objects can be constructed using atomic single-writer mult

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rdf:type	building
rdfs:label	Shared snapshot objects (en)
rdfs:comment	In distributed computing, a shared snapshot object is a type of data structure, which is shared between several threads or processes. For many tasks, it is important to have a data structure, that can provide a consistent view of the state of the memory. In practice, it turns out that it is not possible to get such a consistent state of the memory by just accessing one shared register after another, since the values stored in individual registers can be changed at any time during this process. To solve this problem, snapshot objects store a vector of n components and provide the following two atomic operations: update(i,v) changes the value in the ith component to v, and scan returns the values stored in all n components.Snapshot objects can be constructed using atomic single-writer mult (en)
foaf:depiction
dcterms:subject	Distributed computing Distributed computing problems Distributed algorithms
Wikipage page ID	44400621 (xsd:integer)
Wikipage revision ID	1120212906 (xsd:integer)
Link from a Wikipage to another Wikipage	Algorithm Shared snapshot objects Distributed computing Data structure Distributed computing Distributed shared memory Linearizability Handshake (computing) Atomicity (programming) Distributed computing problems Distributed algorithms Bit Thread (computing) Shared memory (interprocess communication) Shared memory architecture Non-blocking algorithm Shared register dbr:Randomized_consensus dbr:Shared_Register dbr:Unbounded_memory
sameAs	Shared snapshot objects Shared snapshot objects Shared snapshot objects Shared snapshot objects
dbp:wikiPageUsesTemplate	dbt:Reflist
thumbnail	wiki-commons:Special:FilePath/Starving_Process_in_Snapshot_object.svg?width=300
has abstract	In distributed computing, a shared snapshot object is a type of data structure, which is shared between several threads or processes. For many tasks, it is important to have a data structure, that can provide a consistent view of the state of the memory. In practice, it turns out that it is not possible to get such a consistent state of the memory by just accessing one shared register after another, since the values stored in individual registers can be changed at any time during this process. To solve this problem, snapshot objects store a vector of n components and provide the following two atomic operations: update(i,v) changes the value in the ith component to v, and scan returns the values stored in all n components.Snapshot objects can be constructed using atomic single-writer multi-reader shared registers. In general, one distinguishes between single-writer multi-reader (swmr) snapshot objects and multi-writer multi-reader (mwmr) snapshot objects. In a swmr snapshot object, the number of components matches the number of processes and only one process Pi is allowed to write to the memory position i and all the other processes are allowed to read the memory. In contrast, in a mwmr snapshot object all processes are allowed to write to all positions of the memory and are allowed to read the memory as well. (en)
gold:hypernym	Structure
prov:wasDerivedFrom	wikipedia-en:Shared_snapshot_objects?oldid=1120212906&ns=0
page length (characters) of wiki page	25217 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Shared_snapshot_objects
is Link from a Wikipage to another Wikipage of	Shared snapshot objects Shared memory Shared register
is foaf:primaryTopic of	wikipedia-en:Shared_snapshot_objects

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