05-22-2008
Quote:
Originally Posted by
dinjo_jo
Hi ,
I'm trying to change the variable value in a while loop , however its not working it seems that the problem with subshells while reading the file.
#!/bin/sh
FLAG=0;
cat filename | while read data
do
FLAG=1;
done
echo $FLAG
Should display 1 instead displays 0
It will only display the value of FLAG as 1 when the condition is satisfied,that means there is some file you are trying to cat and reading lines. So check for the file first.
Thanks..
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LEARN ABOUT OSX
mpi_finalized
MPI_Finalized(3OpenMPI) MPI_Finalized(3OpenMPI)
NAME
MPI_Finalized - Checks whether MPI_Finalize has completed.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Finalized(int *flag)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_FINALIZED(FLAG, IERROR)
LOGICAL FLAG
INTEGER IERROR
C++ Syntax
#include <mpi.h>
bool MPI::Is_finalized()
OUTPUT PARAMETER
flag True if MPI was finalized (logical).
IERROR Fortran only: Error status (integer).
DESCRIPTION
This routine returns "true" if MPI_Finalize has completed. You can call MPI_Finalized before MPI_Init and after MPI_Finalize.
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.
Open MPI 1.2 September 2006 MPI_Finalized(3OpenMPI)