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- W4254161753 abstract "To date, the implementation of message passing languages has required hte communications variables (sometimes called ports) either to be limited to the number of physical communications registers in the machine or to be mapped to memory. Neither solution is satisfactory. Limiting the number of variables decreases modularity and efficiency of parallel programs. Mapping variables to memory increases the cost of communications and the granularity of parallelism. We present here a new programming language construct called epochs . Epochs are a scoping mechanism within which the programmer can declare communications variables, which are live only during the scope of that epoch. To limit the range of time a register has to be allocated for a communications variable, the compiler ensures that all processors enter an epoch simultaneously. The programming style engendered fits somewhere between the SIMD data parallel and the MIMD process spawning models. We describe an implementation for epochs including an efficient synchronization mechanism, a means of statically binding registers to communications variables, and a method of fusing epochs to reduce synchronization overhead." @default.
- W4254161753 created "2022-05-12" @default.
- W4254161753 creator A5045655247 @default.
- W4254161753 date "1992-01-02" @default.
- W4254161753 modified "2023-09-27" @default.
- W4254161753 title "Epochs" @default.
- W4254161753 cites W2098688018 @default.
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- W4254161753 doi "https://doi.org/10.1145/111186.116785" @default.
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