openmpi/IsendIrecv_byte

OpenMPI non-blocking communications sample

Environment

Debian wheezy

Setup

    $ sudo apt-get install libopenmpi-dev openmpi-bin

Building

    $ make
    mpic++ -g -O2    IsendIrecv_byte.cpp   -o IsendIrecv_byte

Running

    $ make test
mpirun -np 8 ./IsendIrecv_byte
rank = 3 : src rank = 1 : value = 9.42
rank = 4 : src rank = 2 : value = 12.56
rank = 2 : src rank = 0 : value = 6.28
rank = 1 : src rank = 7 : value = 3.14
rank = 5 : src rank = 3 : value = 15.7
rank = 0 : src rank = 6 : value = 25.12
rank = 6 : src rank = 4 : value = 18.84
rank = 7 : src rank = 5 : value = 21.98