gm_simple_example_recv.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include "gm.h"
#include "gm_simple_example.h"

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Detailed Description

Simple Send/Recv for GM Author: Max Stern (Myricom) Based on a program by Cam Macdonell - University of Alberta

Syntax: gm_simple_example_recv <sender_nodename> [<local_board_num>]

<sender_nodename> is required. Include the board_num suffix if the sender is using a board_num other than 0; e.g., hosta:1 for board 1 on host "hosta".

The default for <local_board_num> is 0.

Description:

This program, together with gm_simple_example_send, serves as a super- simple example of sending and receiving in GM, using both the basic send (gm_send type) and the directed send (gm_directed_send type) paradigms.

This program, the "receiver" or slave process, takes the following main actions (see commentary in the code below for the "how" details):

• uses gm_send_to_peer_with_callback() to transmit its node_id and its directed-receive buffer address to the "sender" process (which may be on the same or a different host);

• loops on gm_receive() until both the send callback from the above send and an incoming message from gm_simple_example_send have been received (the incoming message serves as notification that the directed-receive buffer has been modified);

• displays the contents of its directed-receive buffer, showing the contents stored there by gm_simple_example_send;

• exits.

See also the Description and the Usage Note in gm_simple_example_send.c.

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