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The Jrpm System for Dynamically Parallelizing Java Programs

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The Jrpm System for Dynamically Parallelizing Java Programs
We describe the Java runtime parallelizing machine (Jrpm), a complete system for parallelizing sequential programs automatically. Jrpm is based on a chip multiprocessor (CMP) with thread-level speculation (TLS) support. CMPs have low sharing and communication costs relative to traditional multiprocessors, and thread-level speculation (TLS) simplifies program parallelization by allowing us to parallelize optimistically without violating correct sequential program behavior. Using a Java virtual machine with dynamic compilation support coupled with a hardware profiler, speculative buffer requirements and inter-thread dependencies of prospective speculative thread loops (STLs) are analyzed in real-time to identify the best loops to parallelize. Once sufficient data has been collected to make a reasonable decision, selected loops are dynamically recompiled to run in parallel. Experimental results demonstrate that Jrpm can exploit thread-level parallelism with minimal effort from the progra...
Michael K. Chen, Kunle Olukotun
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where ISCA
Authors Michael K. Chen, Kunle Olukotun
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