pvm_lvgroup - Unenrolls the calling process from a named group.
pvm_lvgroup unenrolls the calling process from the group named
If there is an error
will be negative.
If a process leaves a group by calling either pvm_lvgroup or pvm_exit, and later rejoins the same group, the process may be assigned a new instance number. Old instance numbers are reassigned to processes calling pvm_joingroup.
info = pvm_lvgroup( "worker" )