LogP machine
http://dbpedia.org/resource/LogP_machine an entity of type: WikicatModelsOfComputation
Le modèle LogP est un modèle de programmation parallèle. Il se veut plus proche des applications réelles que le modèle PRAM tout en permettant une analyse rapide. Son nom n'est en aucun cas relié au logarithmes, mais bien aux quatre paramètres du modèle : L, o, g et P.
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LogP是由等人提出的，它使用了L,O,G,P四个参数来描述这个模型。 L (Latency)表示信息从源到目的地所需的时间；O (Overhead)表示处理器接受或发送一条消息所需额外开销，并且在此期间处理器不能做作任何操作；G (Gap)表示处理器连续进行两次发送或接收消息之间必须有的时间间隔；P (Processor)表示处理器的数目。 由上可以看出，LogP模型一方面充分讨论了网络的通信特性，另一方面却放弃了对网络拓扑的讨论。在LogP中没有出现超级步的概念，这是因为LogP中是消息同步的，也就是说，一旦消息到达了处理器我们就可以使用，而不必要等到下一个超级步。
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The LogP machine is a model for parallel computation.It aims at being more practical than the PRAM model while still allowing for easy analysis of computation.The name is not related to the mathematical logarithmic function: Instead, the machine is described by the four parameters , , and . The LogP machine consists of arbitrarily many processing units with distributed memory.The processing units are connected through an abstract communication medium which allows point-to-point communication. This model is pair-wise synchronous and overall asynchronous.
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Modèle LogP (Informatique)
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LogP machine
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LogP模型
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19664404
xsd:integer
1048703156
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The LogP machine is a model for parallel computation.It aims at being more practical than the PRAM model while still allowing for easy analysis of computation.The name is not related to the mathematical logarithmic function: Instead, the machine is described by the four parameters , , and . The LogP machine consists of arbitrarily many processing units with distributed memory.The processing units are connected through an abstract communication medium which allows point-to-point communication. This model is pair-wise synchronous and overall asynchronous. The machine is described by the four parameters:
* , the latency of the communication medium.
* , the overhead of sending and receiving a message.
* , the gap required between two send/receive operations. A more common interpretation of this quantity is as the inverse of the bandwidth of a processor-processor communication channel.
* , the number of processing units. Each local operation on each machine takes the same time ('unit time'). This time is called a processor cycle. The units of the parameters , and are measured in multiples of processor cycles.
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Le modèle LogP est un modèle de programmation parallèle. Il se veut plus proche des applications réelles que le modèle PRAM tout en permettant une analyse rapide. Son nom n'est en aucun cas relié au logarithmes, mais bien aux quatre paramètres du modèle : L, o, g et P.
rdf:langString
LogP是由等人提出的，它使用了L,O,G,P四个参数来描述这个模型。 L (Latency)表示信息从源到目的地所需的时间；O (Overhead)表示处理器接受或发送一条消息所需额外开销，并且在此期间处理器不能做作任何操作；G (Gap)表示处理器连续进行两次发送或接收消息之间必须有的时间间隔；P (Processor)表示处理器的数目。 由上可以看出，LogP模型一方面充分讨论了网络的通信特性，另一方面却放弃了对网络拓扑的讨论。在LogP中没有出现超级步的概念，这是因为LogP中是消息同步的，也就是说，一旦消息到达了处理器我们就可以使用，而不必要等到下一个超级步。
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2391