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Short Description
MPICH Cluster running on Kubernetes
Full Description

MPICH Multinode Cluster

Describe how to make docker image and config Kubernetes cluster for MPI cluster. It is easy to node add/remove using ReplicationController function of Kubernetes.
This is show you a basic MPICH cluster configuration and MPI hello world application on Kubernetes cluster using MPICH3 (specifically 3.1.4).

Reliable, Scalable MPICH cluster on Kubernetes

The followings are multi-node MPICH cluster configuration on Kubernetes. It deploys a master with replicated workers.

Master Pods

Create this master as follows:

kubectl create -f mpich-master.yaml

Replicated mpich servers

Create this worker as follows:

kubectl create -f mpich-controller.yaml

Scale our replicated pods

we will add more replicas for worker:

kubectl scale rc mpich-worker --replicas=3

mpich master service

Create the service by running: Using NodePort as 32000 tcp port

kubectl create -f mpich-service.yaml

Connect to master & Basic test

$ ssh root@ -p 32000 (Any one of kube cluster nodes)
root@'s password: (root apsswrod as 'root')
Last login: Thu Aug  6 04:11:46 2015 from mpich-master
root@mpich-master:~# mpirun -f host_file -n 3 hostname


Now We have a reliable, scalable MPICH cluster installation. By scaling the replication controller for mpich worker instances, we can increase or decrease the number of mpich-worker instances and auto update for host file on master. If you want to test for sample MPI program, visit to (MPICH package installed /tmp/mpich)

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