Some functions in oligo/crlmm can process data in batches to minimize
memory footprint. When using this feature, the 'ff' package resources
are used (and possibly combined with cluster resources set in
options() via 'snow' package). Methods that are executed on a sample-by-sample manner can use
ocSamples() to automatically define how many samples are processed at
once (on a compute node). Similarly, methods applied to probesets can
use ocProbesets(). Users should set these options appropriately.
ldStatus
checks the support for large datasets.
ldPath
checks where ff files are stored.