Understanding performance of SMP clusters running MPI programs

Franck Cappello, Olivier Richard, Daniel Etiemble

Research output: Contribution to journalArticlepeer-review


Clusters of multiprocessors (CLUMPs) have an hybrid memory model, with message passing between nodes and shared memory inside nodes. We examine the performance of Myrinet clusters of SMP PCs when using a single memory model (SMM) based on the MPICH-PM/CLUMP library of the RWCP, which can directly use the MPI programs written for a cluster of uniprocessors. The specificities of the communication patterns with the SMM approach are detailed. PC clusters with 2-way and 4-way nodes are considered and compared.

Original languageEnglish (US)
Pages (from-to)711-720
Number of pages10
JournalFuture Generation Computer Systems
Issue number6
StatePublished - Apr 2001
Externally publishedYes


  • Clusters of multiprocessors
  • MPI programs
  • SMP clusters

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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