/*D
   MPIX_Comm_failure_ack - Acknowledge the current group of failed processes

Synopsis:
.vb
int MPIX_Comm_failure_ack(MPI_Comm comm)
.ve

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 receive 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.

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_OTHER

D*/

