Multi-thread is a mature and widely-used programming mode for multitasking applications developing, especially in Java. However java.lang.Thread is not designed for HPC parallel programming. Java multi-thread program is confined within single compute host. CommonJ Work Manager is a joint specification proposed by IBM and BEA. Work Manager is a higherlevel alternative to using Java Thread. Originally, Work Manager is used to solve the constraint of opening independent threads in J2EE container.

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... lthough there are some enterprise servers such as WebLogic and WebSphere which have supported Work Manager, they are not aim at large scale parallel applications. They do not have a grid-enabled and expandable architecture, and the multi-thread programs are still executed on single compute host. Currently, grid-enabled parallel programming model like MPICH-G2 is limited with C/C++ implementations. There are no official bindings for MPI with Java. In this paper, we present a grid-enabled multi-thread programming model: SymWorkManager to enable multithread programs to run on distributed environments. SymWorkManager is designed as a high performance computing (HPC) implementation of CommonJ Work Manger specification using Platform Symphony. It provides J2EE developers a simpler way to program parallel multi-thread applications under a HPC platform.