Have fun with MPI in C
02 Point-to-Point communication
04 Collective communications
Running on a local Docker environment
If you are looking for a simple environment to execute your MPI examples. The Docker platform is the best solution suits you.
Docker is a set of platform as a service (PaaS) products that uses OS-level virtualization to deliver software in packages called containers. Containers are isolated from one another and bundle their own software, libraries and configuration files; they can communicate with each other through well-defined channels. All containers are run by a single operating-system kernel and are thus more lightweight than virtual machines. Wikipedia
- 🐳 Docker Ubuntu OpenMPI
- 🆘 Usage of book Docker environment:
docker run -it --mount src="$(pwd)",target=/home,type=bind spagnuolocarmine/docker-mpi:latest, executes the docker container, which mounts the current path in the
/homefolder of the container.
- However, in order to run the container (using the user root), you need to allow the execution of the
mpiruncommand using the root user by adding the
--allow-run-as-rootoption, for instance
mpirun --allow-run-as-root -np 3 myprogram.out.
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