Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
MULTI-CONNECTION AND MULTI-CORE AWARE ALL-GATHER ON INFINIBAND CLUSTERS
 

Summary: MULTI-CONNECTION AND MULTI-CORE AWARE ALL-GATHER ON
INFINIBAND CLUSTERS
Ying Qian Mohammad J. Rashti Ahmad Afsahi
Department of Electrical and Computer Engineering, Queen's University
Kingston, ON, CANADA K7L 3N6
{ying.qian, mohammad.rashti}@ece.queensu.ca ahmad.afsahi@queensu.ca
ABSTRACT
MPI_Allgather is a collective communication operation
that is intensively used in many scientific applications.
Due to high data exchange volume in MPI_Allgather,
efficient and scalable implementation of this operation is
critical to the performance of scientific applications
running on emerging multi-core clusters.
Mellanox ConnectX is a modern InfiniBand host channel
adapter that is able to serve data communication over
multiple simultaneously active connections in a scalable
manner. In this work, we utilize this feature of the
ConnectX architecture and propose novel multi-
connection aware RDMA-based MPI_Allgather
algorithms for different message sizes over multi-core

  

Source: Afsahi, Ahmad - Department of Electrical and Computer Engineering, Queen's University (Kingston)

 

Collections: Computer Technologies and Information Sciences