Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
MPIX_Comm_failure_ack(3)	      MPI	      MPIX_Comm_failure_ack(3)

NAME
       MPIX_Comm_failure_ack  -	  Acknowledge  the  current  group  of	failed
       processes

SYNOPSIS
       int MPIX_Comm_failure_ack(MPI_Comm comm)

INPUT PARAMETERS
       comm   -	communicator (handle)

NOTES
       This local operation gives the users a way to acknowledge  all  locally
       notified	failures on comm. After	the call, unmatched MPI_ANY_SOURCE re-
       ceive   operations   that   would   haveraised	an   error   of	 class
       MPI_ERR_PROC_FAILED_PENDING due to MPI process failure proceed  without
       further	raising	 errors	due to those acknowledged failures. Also after
       this  call,  MPIX_Comm_agree  will  not	raise  an   error   of	 class
       MPI_ERR_PROC_FAILED due to those	acknowledged failures.

THREAD AND INTERRUPT SAFETY
       This  routine  is  thread-safe.	 This  means  that this	routine	may be
       safely used by multiple threads without the need	for any	 user-provided
       thread  locks.  However,	the routine is not interrupt safe.  Typically,
       this is due to the use of memory	allocation routines such as malloc  or
       other  non-MPICH	 runtime  routines  that are themselves	not interrupt-
       safe.

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 com-
       municators),  MPI_File_set_errhandler  (for files), and MPI_Win_set_er-
       rhandler	(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 guarantee that an MPI program can continue past
       an error; however, MPI implementations will attempt to  continue	 when-
       ever possible.

       MPI_SUCCESS
	      -	No error; MPI routine completed	successfully.
       MPI_ERR_COMM
	      -	 Invalid communicator.	A common error is to use a null	commu-
	      nicator in a call	(not even allowed in MPI_Comm_rank ).
       MPI_ERR_OTHER
	      -	Other error; use  MPI_Error_string  to	get  more  information
	      about this error code.

				   2/3/2025	      MPIX_Comm_failure_ack(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=MPIX_Comm_failure_ack&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

home | help