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ParJava. An Extension of Java Environment By Facilities Supporting Development Of Effective Parallel Programs. Institute For System Programming Russian Academy Of Sciences, 25 Bolshaya Kommunisticheskaya St. Moscow, Russia 109004. w w w . i s p r a s . r u.

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  1. ParJava.An Extension of Java Environment By Facilities Supporting Development Of Effective Parallel Programs Institute For System ProgrammingRussian Academy Of Sciences,25 Bolshaya Kommunisticheskaya St. Moscow, Russia 109004 w w w . i s p r a s . r u

  2. Purposes. The ParJava environment is intended for to provide developing of • Effective • Scalable • Portable • Object-oriented parallel Java-programswithin bounds of SPMD model

  3. Why Java? The Java programming language is • Simple object model • Determinacy of code • Platform-neutrality • Type-safe supporting It is and many others abilities is making Java more attractive for developing of parallel programs.

  4. API:Basic prerequisite for developing of parallel programs is a well communication API. The facilities of Java to support developing of parallel programs • Threads • Sockets • Remote Method Invocation

  5. Symmetric:The ParJava provides developing of parallel programs basedon the distributed memory model. The Java sockets and RMI is communication models optimized for the client-server paradigm, BUT Parallel computing world is mainly to deal with the symmetric communication model. SO, The ParJava offers interfaces and classes provided symmetric communicationmodel.

  6. Communication:Symmetric model of communication is captured in the successful MPI standard • MPI directly supports SPMD paradigm • Fully featured Java interface to MPI 1.1 • Object-oriented API based on MPI 2 • Implementation used JNI to native MPI • Available for Solaris, Linux

  7. Related Projects: • mpiJava (Syracuse, USA) • JavaMPI (Westminster, UK) • JMPI (MPI Software Technology, USA) • MPIJ (Brigham Young, USA) • jmpi (Basknet, Turkey)

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