- Aide Scilab
- Calculs Parallèles avec PVM
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blocks the calling process until all processes in a group have called it.
[info] = pvm_barrier(group,count)
string, name of an existing group.
integer, specifying the number of group members that must call pvm_barrier before they are all released.
integer, status code returned by the routine.
pvm_barrier blocks the calling process until
members of the
group have called
count argument is required because processes could be
joining the given group after other processes have called
pvm_barrier. Thus PVM does not 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
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
The returned value
infowill be zero if
pvm_barrier is successful and will be
will be < 0 if some error occurs.
- pvm_joingroup — enrolls the calling process in a named group.
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