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| Paradigm | functional, dataflow |
|---|---|
| Designed by | James McGraw |
| Developer | James McGraw et al., at University of Manchester, LLNL, Colorado State University, and DEC |
| First appeared | 1983 |
| Typing discipline | static, strong |
| Major implementations | |
| osc, sisalc | |
| Influenced by | |
| VAL, Pascal, C, Fortran | |
| Influenced | |
| Haskell,[citation needed] SAC | |
SISAL (Streams and Iteration in a Single Assignment Language) is a general-purpose single assignment functional programming language with strict semantics, implicit parallelism, and efficient array handling. SISAL outputs a dataflow graph in Intermediary Form 1 (IF1). It was derived from VAL (Value-oriented Algorithmic Language, designed by Jack Dennis), and adds recursion and finite streams. It has a Pascal-like syntax and was designed to be a common high-level language for numerical programs on a variety of multiprocessors.
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