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5.3 Front end-to-DPU Communication

This type of communication is the most expensive, as mentioned before. The user has more control over the amount of front end-to-DPU communication when programming in MPL; the MasPar Fortran compiler manages all communication. MPL provides routines that allow the programmer to call subroutines from the front end program---some of these are callRequest, copyIn, copyOut, blockIn and blockOut. There are man pages for all of these routines on the MP-2.