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Instances of Ubuntu Linux with MPICH -- portable implementation of Message Passing Interface (MPI) standard. Designed for MPI program development and deployment.
Vlabs are reset every night around 02:00!
If you would like to keep your work please refer to “publish”.
Vlabs dont have firewall restrictions BUT the machines are not exposed to the internet.
You share all machines so please be cooperative and discrete.
This is a quickstart guide of howto use this LabInstance to deploy MPI programs
The host file that contains addresses of connected workers can be created with:
swarmlab-getworkers > /home/ubuntu/invhosts
ssh ubuntu@[IP] Info: user has sudo privileges without a password
mpicc -o /home/ubuntu/mpi_hello_world examples/mpi_hello_world.c
mpirun -n 10 -f /home/ubuntu/hosts /home/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 scp /home/ubuntu/mpi_hello_world ubuntu@$line:/home/ubuntu/mpi_hello_world done < /home/ubuntu/hosts
mkdir /home/ubuntu/directory put your files and other directories into /home/ubuntu/directory swarmlab-publish /home/ubuntu/directory open URL in Browser
See examples directory
cd examples make mpi_hello_world make example ex=squares ...