Hardware- and Software-Based Collective Communication on the Quadrics Network

  title={Hardware- and Software-Based Collective Communication on the Quadrics Network},
  author={Fabrizio Petrini and Salvador Coll and Eitan Frachtenberg and Adolfy Hoisie},
The efficient implementationof collective communication patternsin a parallel machine is a challenging designeffort, that requiresthesolutionof manyproblems.In this paper we presentan in-depthdescriptionof how the Quadricsnetworksupportsboth hardwareand softwarebasedcollectives.We describethemainfeaturesof thetwo building blocksof thisnetwork,a networkinterfacethatcan performzero-copyuser-level communicationand a wormholeroutingswitch. Wealsofocusour attentionontherouting andflowcontrol… CONTINUE READING
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