Singularity enables users to have full control of their environment. This means that a non-privileged user can “swap out” the operating system on the host for one they control. So if the host system is running RHEL6 but your application runs in Ubuntu, you can create an Ubuntu image, install your applications into that image, copy the image to another host, and run your application on that host in it’s native Ubuntu environment!
Singularity also allows you to leverage the resources of whatever host you are on. This includes HPC interconnects, resource managers, file systems, GPUs and/or accelerators, etc. Singularity does this by enabling several key facets:
- Encapsulation of the environment
- Containers are image based
- No user contextual changes or root escalation allowed
- No root owned daemon processes
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Penguin Computing has announced support for Singularity containers for it’s HPC Cloud (Penguin Computing On-Demand) and Scyld ClusterWare...
We are proud to announce that you can now cite Singularity proper! Our recent publication in PLOS One...
Greg and the new SingularityWare LLC. were recently featured on HPC Wire to announce changes to the organizational...