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  1. Proceedings of the Fourth Conference on Partitioned Global Address Space Programming Model (PGAS '10)
  2. Unifying UPC and MPI runtimes: experience with MVAPICH
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Predicting remote reuse distance patterns in UPC applications
Introducing OpenSHMEM: SHMEM for the PGAS community
Hybrid PGAS runtime support for multicore nodes
Asynchronous PGAS runtime for Myrinet networks
Unifying UPC and MPI runtimes: experience with MVAPICH
Introducing mNUMA: an extended PGAS architecture
Performance modeling for multilevel communication in SHMEM+
Improving UPC productivity via integrated development tools
X10-enabled MapReduce
Development and performance analysis of a UPC Particle-in-Cell code
XcalableMP implementation and performance of NAS Parallel Benchmarks
Extensible PGAS semantics for C++
An open-source compiler and runtime implementation for Coarray Fortran
Hiding latency in Coarray Fortran 2.0
Numerical Python for scalable architectures

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Unifying UPC and MPI runtimes: experience with MVAPICH

Content Provider ACM Digital Library
Author Sur, Sayantan Panda, Dhabaleswar K. Luo, Miao Jose, Jithin
Abstract Unified Parallel C (UPC) is an emerging parallel programming language that is based on a shared memory paradigm. MPI has been a widely ported and dominant parallel programming model for the past couple of decades. Real-life scientific applications require a lot of investment by domain scientists. Many scientists choose the MPI programming model as it is considered low-risk. It is unlikely that entire applications will be re-written using the emerging UPC language (or PGAS paradigm) in the near future. It is more likely that parts of these applications will be converted to newer models. This requires that underlying implementation of system software be able to support both UPC and MPI simultaneously. Unfortunately, the current state-of-the-art of UPC and MPI interoperability leaves much to be desired both in terms of performance and ease-of-use. In this paper, we propose "Integrated Native Communication Runtime" (INCR) for MPI and UPC communications on InfiniBand clusters. Our library is capable of supporting both UPC and MPI communications simultaneously. This runtime is based on the widely used MVAPICH (MPI over InfiniBand) Aptus runtime, which is known to scale to tens-of-thousands of cores. Our evaluation reveals that INCR is able to deliver equal or better performance compared to the existing UPC runtime - GASNet on InfiniBand verbs. We observe that with UPC NAS benchmarks CG and MG (class B) at 128 processes, we outperform current GASNet implementation by 10% and 23%, respectively.
Starting Page 1
Ending Page 10
Page Count 10
File Format PDF
ISBN 9781450304610
DOI 10.1145/2020373.2020378
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2010-10-12
Publisher Place New York
Access Restriction Subscribed
Content Type Text
Resource Type Article
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