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Given by Bryan Carpenter, Vladimir Getov (Westminister Univ. UK Speaker), Glenn Judd, Tony Skjellum at SC98 Orlando Java Grande Panel on November 13 98. Foils prepared December 6 98
Outside Index
Summary of Material
| Java Grande Forum Homepage |
| SC98 Java Grande Panel Presentation |
| Motivation of subgroup and current activities |
| Some results |
| Proposed standard Java API for MPI |
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MPI for Java
Introduction and Background
Current Status
Current Status (contd.)
JavaMPI: NPB IS kernel on IBM SP2
Java-MPI API Specification
mpiJava Class Hierarchy
Advanced Message Passing for Java
Further Actions
Further Actions (contd.)
Outside Index
Summary of Material
HTML version of Basic Foils prepared December 6 98 
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| Bryan Carpenter, Vladimir Getov, Glenn Judd, Tony Skjellum, Geoffrey Fox and others |
HTML version of Basic Foils prepared December 6 98
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| The existing communication packages in Java - RMI, API to BSD sockets - are optimized for Client/Server programming |
| The symmetric model of communication is captured in the MPI standard - MPI-1 and MPI-2 |
| A Java-MPI API specification is urgently needed to enable the development of portable JavaGrande applications using MPI |
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| mpiJava - Modelled after the C++ binding for MPI. Implementation through JNI wrappers to native MPI software. http://www.npac.syr.edu/projects/pcrc/HPJava/ |
| JavaMPI - Automatic generation of wrappers to legacy MPI libraries. C-like implementation based on the JCI code generator. http://perun.hscs.wmin.ac.uk/JavaMPI/ |
| MPIJ - Pure Java implementation of MPI closely based on the C++ binding. A large subset of MPI is implemented using native marshaling. http://ccc.cs.byu.edu/DOGMA/ |
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| JMPI - MPI Soft Tech Inc. have announced a commercial effort under way to develop a message passing environment for Java. |
| Others |
| Current ports - Solaris (both WS clusters and SMPs), AIX (both WS clusters and SP2), Windows NT clusters, Origin-2000, Fujitsu AP3000, and Hitachi SR2201. |
| Java + MPI codes - growing variety including full applications |
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| First phase in our work on MPI for Java. |
| Builds on MPI-1 Specification and the current Java Specification. |
| Provide immediate standardization for common message passing programs in Java |
| Provide a basis for conversion between C, C++, Fortran and Java. |
| Eventually, support for aspects of MPI-2 as well as possible improvements to the Java language. |
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HTML version of Basic Foils prepared December 6 98
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| Second phase in our work on MPI for Java |
| Current task - to offer a first principles study of MPI-like services in an upward compatible fashion |
| Purpose - performance and portability |
| Fundamental look at data marshaling |
| Preference for Java-natural mechanisms |
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| Standard Java-MPI Specification - Draft document at www.javagrande.org |
| Discussion and comments to javagrande@npac.syr.edu |
| Closer contact with C/Fortran MPI Forum community |
| Final document - next spring |
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| Java-MPI wrapper(s) publicly available |
| Intelligent code generator of wrappers |
| Pure Java MPI implementation |
| Test suite |
| Java-MPI benchmarks |
| Advanced MPI for Java research |