pvm_delhosts - Deletes hosts from the virtual machine.
C int info = pvm_delhosts( char **hosts, int nhost, int *infos )
Fortran call pvmfdelhost( host, info )
- hosts
- An array of pointers to character strings containing the names of the
machines to be deleted.
- nhost
- Integer specifying the number of hosts to be deleted.
- infos
- Integer array of length nhost which contains the status code
returned by the routine for the individual hosts. Values less than zero
indicate an error.
- host
- Character string containing the name of the machine to be deleted.
- info
- Integer status code returned by the routine. Values less than nhost
indicate partial failure, values less than 1 indicate total failure.
The routine pvm_delhosts deletes the computers pointed to in hosts
from the existing configuration of computers making up the virtual machine.
All PVM processes and the pvmd running on these computers are killed as the
computer is deleted. If pvm_delhosts is successful, info will be
nhost. Partial success is indicated by 1<= info < nhost, and
total failure by info < 1. The array infos can be checked to
determine which host caused the error.
The Fortran routine pvmfdelhost deletes a single host from
the configuration with each call.
If a host fails, the PVM system will continue to function and will
automatically delete this host from the virtual machine. An application can
be notified of a host failure by calling pvm_notify. It is still the
responsibility of the application developer to make his application tolerant
of host failure.
C:
static char *hosts[] = {
"sparky",
"thud.cs.utk.edu",
};
int status[2];
info = pvm_delhosts( hosts, 2, status );
Fortran:
CALL PVMFDELHOST( 'azure', INFO )
These error conditions can be returned by pvm_delhosts
- PvmBadParam
- giving an invalid argument value.
- PvmSysErr
- local pvmd not responding.
pvm_addhosts(3PVM), pvm_notify(3PVM)