[Paraview] About pipeline execution!

[forest]

Dear:
	I use paraview to read a pvd file which has 116 parts and each 
part is a vtu file.I found that paraview creates 116 pipelines which
are same to do this. Pipelines which are in data server and render server
are all have vtkMPIMoveData filters.When pipelines execute, how does we differentiate
vtkMPIMoveData filters?
	Another question is how do these pipelines synchronize to display all parts 
in Paraview client?
    Hope your reply!
    Best Regards!

　　　　　　　　forest
　　　　　　　　forest80 at 163.com
　　　　　　　　　　2005-08-04