data

Access to the data to be processed should be provided to the workers using the appropriate means, i.e. by opening access to the required mass storages and/or instrumenting the storage available on the nodes with appropriate systems, e.g. xrootd, and exploiting the related tools, e.g. xrdcp.

Assuming that the chosen mass storage is accessible by the client machine via the standard ROOT tools (TFile::Open, TSystem, ...), there are a couple of simple functions which could be used to upload on this mass storage a set of files provide via a TList or a text file.