MAJC : Java Glossary


MAJC (Microprocessor Architecture for Java Computing) (pronounced Magic). Oracle’s architecture is designed to be particularly scalable (multiple cpus), to run JITs (Just In Times) efficiently and to handle DSP (Digital Signal Processor) and SIMD (Single Instruction Multiple Data) (vector) applications. One interesting feature is hardware saturation computing. MAJC also speculatively executes entire routines in parallel even if they belong to the same thread. It works by dynamically creating a separate stack for speculative executed methods and tracking the use of variables shared with the main execution stream. All the MAJC links now point to the Ultrasparc processor, so I gather the project has been abandoned. Much of the thinking that went into MAJC in now used in the Niagara low power multicore chips.

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