OpenMP

• OpenMP allows a user

  • to define regions of parallel code (PARALLEL) where it is possible to use local (PRIVATE) and shared variables (SHARED);
  • to synchronize processes by the definition of critical sections (CRITICAL) for shared variables (SHARED);
  • to define synchronization points (BARRIER).

• OpenMP has been proposed last year with the goal to become a standard for shared-memory architectures (like PVM and MPI for distributed memory machines).

• Support for general task parallelism is not included in the OpenMP specification !

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