DELHOSTS(3)
NAME
pvm_delhosts - Deletes hosts from the virtual machine.
SYNOPSIS
C int info = pvm_delhosts( char **hosts, int nhost, int *infos ) Fortran call pvmfdelhost( host, info )
PARAMETERS
- 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.
DESCRIPTION
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.
EXAMPLES
- C:
- static char *hosts[] = {
"sparky",
"thud.cs.utk.edu", - };
int status[2];
info = pvm_delhosts( hosts, 2, status ); - Fortran:
- CALL PVMFDELHOST( 'azure', INFO )
ERRORS
These error conditions can be returned by pvm_delhosts
- PvmBadParam
- giving an invalid argument value.
- PvmSysErr
- local pvmd not responding.