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More fun with containers in HPC at

In our evaluation Singularity proved to be an easy to install, stable and performant container engine.

The only minor drawback, we found when compared to Docker, was the need to define the host path mount points statically when the Singularity images were created. In fact, even if Singularity supports user mount points to be defined dynamically when the container is launched, this feature requires the overlay file system which was not supported by the kernel available in our system.

Singularity is the tool of choice for the execution of containerised workloads in the context of HPC, thanks to its focus on system security and its simpler architectural design.

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