In MIMD (Multiple Instruction stream, Multiple Data stream) execution, each processor has its own state. Although these states are generally considered to be independent entities, it is also possible to view the set of processor states at a particular time as single, aggregate, "Meta State." Once a program has been converted into a single finite automaton based on Meta States, only a single proram counter is needed. Hence, it is possible to duplicate the MIMD execution using SIMD (Single Instruction stream, Multiple Data stream) hardware without the ovehead of interpretation or even of having each processing element keep a copy of the MIMD code. In this paper, we present an algorithm for Meta-State Conversion (MSC) and explore some properties of the technique.


Meta-State Conversion (MSC), compiler optimization, compiler transformation, MIMD, SIMD.

Date of this Version

January 1993