NAME
pvm_config - Returns information about the present virtual machine configuration.
SYNOPSIS
C int info = pvm_config( int *nhost, int *narch, struct pvmhostinfo **hostp )
struct pvmhostinfo {
int hi_tid;
char *hi_name;
char *hi_arch;
int hi_speed;
};
Fortran call pvmfconfig( nhost, narch, dtid, name, arch, speed, info )
nhost Integer returning the number of hosts (pvmds) in the virtual machine.
narch Integer returning the number of different data formats being used.
hostp Returns pointer to an array of structures which contain information about each host including its pvmd task ID, name, architecture, and relative speed.
dtid Integer returning pvmd task ID for this host
name Character string returning name of this host
arch Character string returning name of host architecture
speed Integer returning relative speed of this host. Default value is 1000.
info Integer status code returned by the routine. Values less than zero indicate an error.
DISCUSSION
The routine pvm_config returns information about the present virtual machine. The information returned is similar to that available from the console command conf.
The C function returns information about the entire virtual machine in one call. The Fortran function returns information about one host per call and cycles through all the hosts. Thus, if pvmfconfig is called nhost times, the entire virtual machine will be represented. If pvm_config is successful, info will be 0. If some error occurs then info will be < 0.
EXAMPLES
C:
struct pvmhostinfo *hostp;
int i, nhost, narch;
info = pvm_config( &nhost, &narch, &hostp );
for (i = 0; i < nhost; i++)
printf("%s\n", hostp[i].hi_name);
Fortran:
ERRORS
The following error condition can be returned by pvm_config