Write a program to provide fair reception of message from all sending
processes. Arrange the program to have all processes except process 0 send 100
messages to process 0. Have process 0 print out the messages as it receives
them. Use nonblocking receives and MPI_Waitsome.
Is the MPI implementation fair?
You may want to use these MPI routines in your solution:
MPI_Waitsome
MPI_Irecv
MPI_Cancel