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pvm_barrier(1) Scilab function pvm_barrier(1)
NAME
pvm_barrier - blocks the calling process until all processes in a group
have called it.
CALLING SEQUENCE
[info] = pvm_barrier(group,count)
PARAMETERS
type : string, name of an existing group.
count
: integer, specifying the number of group members that must call
pvm_barrier before they are all released.
info
: integer, status code returned by the routine.
DESCRIPTION
pvm_barrier blocks the calling process until count members of the group
have called pvm_barrier. The count argument is required because processes
could be joining the given group after other processes have called
pvm_barrier. Thus PVM doesn't know how many group members to wait for at
any given instant. Although count can be set less, it is typically the
total number of members of the group. So the logical function of the
pvm_barrier call is to provide a group synchronization. During any given
barrier call all participating group members must call barrier with the
same count value. Once a given barrier has been successfully passed,
pvm_barrier can be called again by the same group using the same group
name.
If pvm_barrier is successful, info will be 0. If some error occurs then
info will be < 0.
EXAMPLE
info = pvm_barrier( "worker", pvm_gsize("worker") )
SEE ALSO
pvm_joingroup
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