environment.hpp File Reference

RAII wrapper for MPI initialization and finalization. More...

#include <mpi.h>

Include dependency graph for environment.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	pfc::mpi::environment

Detailed Description

RAII wrapper for MPI initialization and finalization.

This header provides the environment class, which manages MPI initialization (MPI_Init) and finalization (MPI_Finalize) using RAII (Resource Acquisition Is Initialization) pattern.

The environment class ensures:

• MPI_Init is called on construction
• MPI_Finalize is called on destruction
• Query MPI state (initialized(), finalized())
• Get processor name

#include <openpfc/mpi/environment.hpp>
 
int main(int argc, char** argv) {
    pfc::mpi::environment env;
    std::cout << "Running on: " << env.processor_name() << std::endl;
    // MPI_Finalize called automatically when env goes out of scope
    return 0;
}

See also

mpi/communicator.hpp for communicator wrapper

mpi.hpp for top-level MPI utilities

Author

OpenPFC Development Team

Date

2025