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mpi_initialized(3openmpi) [osx man page]

MPI_Initialized(3OpenMPI)												 MPI_Initialized(3OpenMPI)

NAME
MPI_Initialized - Indicates whether MPI_Init has been called. SYNTAX
C Syntax #include <mpi.h> int MPI_Initialized(int *flag) Fortran Syntax INCLUDE 'mpif.h' MPI_INITIALIZED(FLAG, IERROR) LOGICAL FLAG INTEGER IERROR C++ Syntax #include <mpi.h> bool Is_initialized() OUTPUT PARAMETERS
flag Flag is true if MPI_Init has been called and false otherwise. IERROR Fortran only: Error status (integer). DESCRIPTION
This routine may be used to determine whether MPI_Init has been called. It is the only routine that may be called before MPI_Init is called. ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ func- tions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. SEE ALSO
MPI_Init Open MPI 1.2 September 2006 MPI_Initialized(3OpenMPI)

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MPI_Initialized(3)							MPI							MPI_Initialized(3)

NAME
MPI_Initialized - Indicates whether MPI_Init has been called. SYNOPSIS
int MPI_Initialized( int *flag ) OUTPUT ARGUMENT
flag - Flag is true if MPI_Init or MPI_Init_thread has been called and false otherwise. NOTES
NOTES FOR FORTRAN
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement. All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran. ERRORS
All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in the last argument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job. The error handler may be changed with MPI_Comm_set_errhandler (for communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. The predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarentee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible. MPI_SUCCESS - No error; MPI routine completed successfully. LOCATION
initialized.c 11/6/2008 MPI_Initialized(3)
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