1. A method, comprising: processing a data chunk generated by a parallel computing system using a Log-Structured File System client to obtain a de-duplication fingerprint, wherein said Log-Structured File System client executes on one or more of a compute node and a burst buffer node in said parallel computing system; storing said de-duplication fingerprint using said Log-Structured File System client in a parallel key server; comparing said de-duplication fingerprint using said Log-Structured File System client to de-duplication fingerprints of other data chunks obtained from said parallel key server; and providing original data chunks to said storage node in said parallel computing system for storage as part of a shared object.