communicator

Video editing on Microsoft Office Communicator

Is there a way to programatically edit and compose the video streams in Office Communicator? For example, how can I merge the webcam video streams of all the participants in a single video stream with a collage of all of them? Ideas? Thanks! ...

Group MPI tasks by host

I want to easily perform collective communications indepandently on each machine of my cluster. Let say I have 4 machines with 8 cores on each, my mpi program would run 32 MPI tasks. What I would like is, for a given function: on each host, only one task perform a computation, other tasks do nothing during this computation. In my examp...