Congratulations are due Sreeram Potluri and his co-authors for their Best Paper accomplishment at the recent Texas Advanced Computing Center (TACC)-Intel Highly Parallel Computing Symposium. This symposium was targeted to explore new designs with upcoming Intel-MIC (Many Integrated Core) architecture which will be a significant component in the upcoming NSF-TACC 'Stampede' 10-15 PetaFlop system.
Sreeram Potluri, Devendar Bureddy, Karen Tomko and Dhabaleswar K. (DK) Panda, Intra-MIC MPI Communication using MVAPICH2: Early Experience. This paper describes the team's early experience using MVAPICH2, a popular open-source implementation of MPI, for communication within a KNF co-processor. They present different versions of MVAPICH2 that are enhanced and tuned for the new architecture. The work compares the point-to-point and collective communication performance of these versions with an out-of-the-box version of MVAPICH2 to highlight the importance of these designs on the MIC architecture. Many Integrated Core (MIC) architecture announced by Intel is expected to be a critical component in their solution for exascale computing. Knights Ferry (KNF) is the first instantiation of the MIC architecture. It is a development platform which enables scientific application and library developers to prepare for the upcoming products based on the MIC architecture.
Sreeram Potluri is a Ph.D. student in the Department of Computer Science and Engineering at The Ohio State University. He is a member of the Network-Based Computing Laboratory lead by Prof.D.K.Panda. His research interests include parallel programming models, high speed interconnects, heterogeneous architectures and high-end applications. His current focus is on the design of a scalable high-performance MPI library for clusters with NVIDIA GPU accelerators and Intel MIC co-processors. Sreeram is involved in the design and development of MVAPICH, a high-performance open-source implementation of MPI over InfiniBand, 10GigE/iWARP and RoCE interconnects. This software is currently used by over 1,800 organizations in 66 countries.
Slides describing the work may be found here.