Parallel programming models
Parallel programming models exist as an abstraction of hardware and memory architectures. In fact, these models are not specific and do not refer to particular types of machines or memory architectures. They can be implemented (at least theoretically) on any kind of machines. Compared to the previous subdivisions, these programming models are made at a higher level and represent the way in which the software must be implemented to perform a parallel computation. Each model has its own way of sharing information with other processors in order to access memory and divide the work.
There is no better programming model in absolute terms; the best one to apply will depend very much on the problem that a programmer should ...
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