[Beowulf] MPI synchronization problem
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Michel Dierks m.dierks at skynet.beFri Nov 10 16:27:13 PST 2006
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Hello, I'm developing an application to calculate the Mandelbrot fractal. My problem is: from the master I will send to each free node for computation a message containing the values of one screen line. After a time the nodes will send back the results. I have see that I can use MPI_Isend and MPI_Irecv for non-blocking communication. This give me no problem if we are talking about of one send and one receive. But how can I handle the sending from each node to the master without data corruption. Must I implement a send and a receive buffer for each node (16 nodes means 16 buffer in and 16 out) ? Can someone help me? Please
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