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JOINGROUP(3PVM) PVM Version 3.4 JOINGROUP(3PVM) NAME pvm_joingroup - Enrolls the calling process in a named group. SYNOPSIS C int inum = pvm_joingroup( char *group ) Fortran call pvmfjoingroup( group, inum ) PARAMETERS group Character string group name of an existing group. inum Integer instance number returned by the routine. Instance num- bers start at 0 and count up. Values less than zero indicate an error. DESCRIPTION The routine pvm_joingroup enrolls the calling task in the group named group and returns the instance number inum of this task in this group. If there is an error inum will be negative. Instance numbers start at 0 and count up. When using groups a (group, inum) pair uniquely identifies a PVM process. This is consistent with the PVM 2.4 naming schemes. If a task leaves a group by calling pvm_lvgroup and later rejoins the same group, the task is not guaran- teed to get the same instance number. PVM attempts to reuse old in- stance numbers, so when a task joins a group it will get the lowest available instance number. A task can be a member of multiple groups simultaneously. EXAMPLES C: inum = pvm_joingroup( "worker" ); Fortran: CALL PVMFJOINGROUP( 'group2', INUM ) ERRORS These error conditions can be returned by pvm_joingroup PvmSysErr pvmd was not started or has crashed. PvmBadParam giving a NULL group name. PvmDupGroup trying to join a group you are already in. SEE ALSO pvm_lvgroup(3PVM) 30 August, 1993 JOINGROUP(3PVM)
NAME | SYNOPSIS | PARAMETERS | DESCRIPTION | EXAMPLES | ERRORS | SEE ALSO
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