Function IOProcessorNumber

Src/Base/AMReX_ParallelDescriptor.H:278–282

* \ingroup amrex_mpi * \brief The MPI rank number of the I/O Processor (probably rank 0). * This rank is usually used to write to stdout. */

    * This rank is usually used to write to stdout.
    */
    inline int
    IOProcessorNumber () noexcept
    {
        return ioProcessor;
    }
    /**
    * \ingroup amrex_mpi
    * \brief Is this CPU the I/O Processor?