docker-openmpi

base package for docker cluster with openmpi

with docker compose

1. set up docker-compose
2. generate ssh public key pair

   $ ./keygen.sh
   

3. build and deploy MPI cluster

   $ docker-compose build
   $ docker-compose up --scale node=4 -d
   

4. login to master node

   $ ./connect-master.sh
   

5. run mpi program from master node

   $ ./make-hostfile.sh
   $ mpirun -np 16 hostname
   252f9f5abc18
   252f9f5abc18
   252f9f5abc18
   252f9f5abc18
   fa00f144c7be
   0ebd38ff982e
   fa00f144c7be
   0ebd38ff982e
   fa00f144c7be
   0ebd38ff982e
   fa00f144c7be
   0ebd38ff982e
   4c1364ddf9d9
   4c1364ddf9d9
   4c1364ddf9d9
   4c1364ddf9d9
   

6. compile an application

   cd /mpi-app/hello-world/
   make 
   

7. run application

   mpirun -np 16 /mpi-app/hello-world/mpi_hello_world
   

8. shutdown cluster

   $ docker-compose down -v
   

with swarm

with kubernetes

1. set up kubernetes

2. start cluster

   $ kubectl create -f mpi-deployment.yml
   

3. login to master node

4. run mpi program

5. shutdown cluster