hybri-mpi !

Instances of Ubuntu Linux with MPICH -- portable implementation of Message Passing Interface (MPI) standard. Designed for MPI program development and deployment.

LabInstance mpi2

Quickstart

This is a quickstart guide of howto use this LabInstance to deploy MPI programs

HowTo use it

Default Configuration

• Working Directory

/project

• Default user

docker

• Default password

docker

• Default password4root

pass

Find lab workers

ifconfig

nmap -sP 172.130.0.0/24

or

/project/bin/swarmlab-nmap

connect to workers

 ssh docker@[IP]

Create hosts file

/project/bin/swarmlab-nmap
/project/bin/swarmlab-nmap > /project/hosts

Compile

mpicc -o /project/mpi_hello_world examples/mpi_hello_world.c

run the MPI hello world program

mpirun -n 10 -f /project/hosts /project/mpi_hello_world

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NOTE: copy hello world to all clients

# scp hello wrold to all clients. sudo -u mpi for auto scp connect. see /home/mpi/.ssh 
while read -r line; 
 do 
   scp /project/mpi_hello_world ubuntu@$line:/project/mpi_hello_world
done < /project/hosts

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MORE INFO

See examples directory

 cd examples
 make mpi_hello_world
 make example ex=squares
 ...

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