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!HPF$ INDEPENDENT [ ,NEW (variable-list) ]
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INDEPENDENT asserts that no iteration affects any other in any way
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It implements the "embarassingly parallel" problem class we discussed under structure of problems
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Note rest of HPF tackles mainly the synchronous problem class with some loosely synchronous capability
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HPF2 has "tasking" for metaproblem class and some extensions for further irregular loosely synchronous problems
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NEW variables are defined to have fresh instantiations for each iteration as is typically needed for embarassingly parallel problems where in fact essentially all variables in a loop would be NEW
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Note INDEPENDENT can be applied to FORALL and asserts that no index point assigns to any location that another iteration index value uses
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This reduces copying needed in FORALL by COMPILER
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HPF2 (see later) has extra feature of allowing REDUCTION (accumulated) variables in INDEPENDENT DO loops
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