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Message Passing Interface

How It Works


How It Works

To get the function ids for the Message Passing Interface (MPI), an application would have to execute an int 80h with the pointer to the function name in ESI. The function id should be remembered by the application until it is closed, or receives a message from the system telling it that the function id database is outdated. In the last case it should then again call int 80h

To send a message, the ESI should point the beginning of the message. The messages structure is described in the Message Structure document.



Message Calls:
MPI_INIT
MPI_COMM_RANK
MPI_COMM_SIZE
MPI_SEND
MPI_RECV
MPI_FINALIZE