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In computer science, partitioned global address space (PGAS) is a parallel programming model paradigm. PGAS is typified by communication operations involving a global memory address space abstraction that is logically partitioned, where a portion is local to each process, thread, or processing element .
The memory segments are supposed to map this variety of hardware layers to the software layer. In the spirit of the PGAS approach, these GPI segments may be globally accessible from every thread of every GPI process. GPI segments can also be used to leverage different memory models within a single application or to even run different applications.
Later it was expanded to distributed memory parallel computer clusters, and is used as parallel programming interface or as low-level interface to build partitioned global address space (PGAS) systems and languages. [3] “Libsma”, the first SHMEM library, was created by Richard Smith at Cray Research in 1993 as a set of thin interfaces to ...
PGAS may refer to: Partitioned global address space, a parallel programming model in computer science; Provisional Government of Autonomous Siberia, an ephemeral ...
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PGAS provides a global memory address space abstraction that is logically partitioned, where a portion is local to each process. Parallel processes communicate by asynchronously performing operations (e.g. reads and writes) on the global address space, in a manner reminiscent of shared memory models.
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PT Pertamina Gas Negara Tbk (PGN, English: Pertamina Gas Company, trading as Pertamina Gas Negara; formerly known as PT Perusahaan Gas Negara Tbk, English: State Gas Company) is an Indonesian natural gas transportation and distribution company.