HPC-In-Containers

Prerequisites

Before creating your own HPC in containers, you need to have:

• Docker
• Docker-compose

Start your HPC in containers

1. Clone this repository

2. Build image [user@host hpc-in-containers]$ docker-compose build

3. Start containers [user@host hpc-in-containers]$ docker-compose up -d

4. Login to one of the containers [user@host hpc-in-containers]$ ssh -i ssh-keys/id_rsa -p 2222 grid@localhost

5. Make sure passwordless ssh is working [grid@grid1 ~]$ ssh-keyscan -t rsa,ecdsa,ed25519 example.com >> ~/.ssh/known_hosts

6. Run sample programs

   6.1 MPI Programming

   • Compile [grid@grid1 data]$ mpicc -o mpi_hello_world mpi_hello_world.c
   • Execute [grid@grid1 data]$ mpirun -np 4 -hostfile hostfile mpi_hello_world

   6.2 OpenMP Programming

   • Compile [grid@grid1 data]$ gcc -fopenmp -o openmp_hello_world openmp_hello_world.c
   • Execute [grid@grid1 data]$ ./openmp_hello_world

   6.3 Hybrid (OpenMP and MPI) Programming

   • Compile [grid@grid1 data]$ mpicc -fopenmp -o openmp_mpi_hello_world openmp_mpi_hello_world.c
   • Execute [grid@grid1 data]$ mpirun -np 4 -hostfile hostfile openmp_mpi_hello_world

7. Stop containers [user@host hpc-in-containers]$ docker-compose down