1.9 KiB

Raw Blame History

mpi & Open JDK !

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

LabInstance mpi2

inspired by NLKNguyen

Quickstart

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

HowTo use it

On step "1. Select Git Repo" see here choose "examples-mpi"
On step "2. Select swarm service" choose "ondemand_mpi2_master"
On step "3. Save Lab Instance" put the name you want
Save it.

Your are ready to run your fresh LabInstance see here

Default Configuration

Working Directory

/ubuntu

Default user for MPI

ubuntu

Buid-in Web Server

INFO

Lab_Instance Name = The name you give here

You can also find here

Usage:

touch /var/www/html/[name]/file

The host file that contains addresses of connected workers can be created with:

get_hosts > /ubuntu/hosts

Compile

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

run the MPI hello world program

sudo -u mpi mpirun -n 10 -f /ubuntu/hosts /ubuntu/mpi_hello_world

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 
   sudo -u mpi scp /ubuntu/mpi_hello_world ubuntu@$line:/ubuntu/mpi_hello_world
done < /ubuntu/hosts

MORE INFO