Improved version of parallel programming interface for distributed data with multiple helper servers
We present an improved version of the Parallel Programming Interface for Distributed Data with Multiple Helper Servers (PPIDDv2) library, which provides a common application programming interface that is based on the most frequently used functionality of both MPI-2 and GA. Compared with the previous...
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| Vydáno v: | Computer physics communications Ročník 182; číslo 7; s. 1502 - 1506 |
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| Hlavní autoři: | , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Elsevier B.V
01.07.2011
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| Témata: | |
| ISSN: | 0010-4655, 1879-2944 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | We present an improved version of the Parallel Programming Interface for Distributed Data with Multiple Helper Servers (PPIDDv2) library, which provides a common application programming interface that is based on the most frequently used functionality of both MPI-2 and GA. Compared with the previous version, the PPIDDv2 library introduces multiple helper servers to facilitate global data structures, and allows programmers to make heavy use of large global data structures efficiently.
Program title: PPIDDv2
Catalogue identifier: AEEF_v2_0
Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEEF_v2_0.html
Program obtainable from: CPC Program Library, Queenʼs University, Belfast, N. Ireland
Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html
No. of lines in distributed program, including test data, etc.: 22 997
No. of bytes in distributed program, including test data, etc.: 184 477
Distribution format: tar.gz
Programming language: Fortran, C
Computer: Many parallel systems
Operating system: Various
Has the code been vectorised or parallelised?: Yes. 2–1024 processors used
RAM: 50 Mbytes
Classification: 6.5
External routines: Global Arrays or MPI-2
Catalogue identifier of previous version: AEEF_v1_0
Journal reference of previous version: Comput. Phys. Comm. 180 (2009) 2673
Does the new version supersede the previous version?: Yes
Nature of problem: Many scientific applications require management and communication of data that is global, and the standard MPI-2 protocol provides only low-level methods for the required one-sided remote memory access.
Solution method: The Parallel Programming Interface for Distributed Data (PPIDD) library provides an interface, suitable for use in parallel scientific applications, that delivers communications and global data management. The library can be built either using the Global Arrays (GA) toolkit, or a standard MPI-2 library. This abstraction allows the programmer to write portable parallel codes that can utilise the best, or only, communications library that is available on a particular computing platform.
Reasons for new version: In the previous version, functionality in global data structure was mainly implemented by MPI-2 passive one-sided operations. In real applications which make heavy use of global data structures, very poor performance was observed.
Summary of revisions: Multiple helper servers are introduced to facilitate the manipulation and management of global data structure. Mutual exclusion is also implemented by the help of a data server, and becomes much more robust and efficient. In addition, flexible options are provided to choose different settings for helper servers. Significant improvement has been seen in performance tests.
Running time: Problem-dependent. The test provided with the distribution takes only a few seconds to run. |
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| Bibliografie: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
| ISSN: | 0010-4655 1879-2944 |
| DOI: | 10.1016/j.cpc.2011.03.020 |