Parallel Computer Architecture

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CHAPTER

2 Parallel Programs

which is in the sending process's private address space; the size of the message in

bytes;

the pid of the destination process, which we must be able to name explicitly

now (unlike in a shared address space); and an optional tag or type associated with

the message for matching at the receiver. The arguments to the RECEIVE call are a

local address at which to place the received data, the size of the message, the sender's

pid, and the optional message tag or type. The specified sender's pid and the tag, if

present, are used to perform a match with the messages that have arrived and are in

the system buffer, to se ...