V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MPP
       Massive Parallel Processor / Processing (MPP)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MPP
       Message Posting Protocol (RFC 1204)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MPP
       Message Processing Program


The Free On-line Dictionary of Computing (30 December 2018):

MPP

   Multiple Parallel Processing