March 18-22: Optimization and Parallelization with MPI and OpenMP

Contents

Parallel region

A parallel region is a block of code that is executed by a team of threads
The following compiler directive creates a parallel region

#pragma omp parallel { ... }

Clauses can be added at the end of the directive
Most often used clauses:

default(shared) or default(none)
public(list of variables)
private(list of variables)

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