Distributing User Code with the CernVM FileSystem

Distributing User Code with the CernVM FileSystem

Blog Article

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.The CernVM FileSystem (CVMFS) is widely used in High Throughput Computing to efficiently distributed experiment code.However, the standard CVMFS publishing tools are designed for a small group of people from each experiment to maintain common software, and the tools are not a good fit for publishing software from numerous users in each experiment.As a result, most user code, such as code to do specific physics analyses, is still sent with every job to the place the job is run.

That process is relatively inefficient, especially when the user code is large.To overcome these limitations, we have built a CVMFS user code publication system.This publication system enables users to still submit their code with their jobs but the code is distributed and accessed through the standard CVMFS infrastructure.
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The user code is automatically deleted from CVMFS after a period of no use.Most of the software for the system is available as a single self-contained open source rpm called cvmfs-user-pub and is available for other deployments