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MPI_Get_processor_name - Gets the name of the processor.
#include <mpi.h>
int MPI_Get_processor_name(char *name, int *resultlen)
INCLUDE ’mpif.h’
MPI_GET_PROCESSOR_NAME(NAME, RESULTLEN, IERROR)
CHARACTER*(*) NAME
INTEGER RESULTLEN, IERROR
#include <mpi.h>
void Get_processor_name(char* name, int& resultlen)
- name
- A unique specifier for the actual (as opposed to
virtual) node.
- resultlen
- Length (in characters) of result returned in name.
- IERROR
- Fortran only: Error status (integer).
This routine returns
the name of the processor on which it was called at the moment of the call.
The name is a character string for maximum flexibility. From this value
it must be possible to identify a specific piece of hardware. The argument
name must represent storage that is at least MPI_MAX_PROCESSOR_NAME characters
long.
The number of characters actually written is returned in the output
argument, resultlen.
The user must provide at least MPI_MAX_PROCESSOR_NAME
space to write the processor name; processor names can be this long. The
user should examine the output argument, resultlen, to determine the actual
length of the name.
Almost all MPI routines return an error value;
C routines as the value of the function and Fortran routines in the last
argument. C++ functions 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.
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