LPVM: a step towards multithread PVM

Zhou, Honbo; Geist, Al

doi:10.1002/(sici)1096-9128(19980425)10:5<407::aid-cpe326>3.0.co;2-6

Cited by 14 publications

(7 citation statements)

References 6 publications

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“…Various groups have taken efforts to achieve efficient PVM implementation on SMP machines. These works generate different variations of PVM including (1) PM-PVM (Portable Multithreaded PVM) [42], (2) LPVM (lightweight-process PVM) [43], and (3) TPVM [44].…”

Section: Related Workmentioning

confidence: 99%

Performance portability on EARTH: a case study across several parallel architectures

2007

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Due to the increase of the diversity of parallel architectures, and the increasing development time for parallel applications, performance portability has become one of the major considerations when designing the next generation of parallel program execution models, APIs, and runtime system software. This paper analyzes both code portability and performance portability of parallel programs for finegrained multi-threaded execution and architecture models. We concentrate on one particular event-driven fine-grained multi-threaded execution model-EARTH, and discuss several design considerations of the EARTH model and runtime system that contribute to the performance portability of parallel applications. We believe that these are important issues for future high end computing system software design. Four representative benchmarks were conducted on several different parallel architectures, including two clusters listed in the 23rd supercomputer TOP500 list. The results demonstrate that EARTH based programs can achieve robust performance portability across the selected hardware platforms without any code modification or tuning.

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Section: Related Workmentioning

confidence: 99%

Performance portability on EARTH: a case study across several parallel architectures

2007

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“…Other platforms like TPVM [8], LPVM [23], a modified version of P4 [7], Chant [12] and Athapascan-0 [6] allow the creation of multiple threads. Communication occurs between threads using thread identifiers and send/receive primitives.…”

Section: Distributed Multithreaded Programmingmentioning

confidence: 99%

Scalable Multithreading in a Low Latency Myrinet Cluster

Alves

Pina²,

Exposto

et al. 2003

Lecture Notes in Computer Science

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Abstract. In this paper we present some implementation details of a programming model -pCoR -that combines primitives to launch remote processes and threads with communication over Myrinet. Basically, we present the efforts we have made to achieve high performance communication among threads of parallel/distributed applications. The expected advantages of multiple threads launched across a low latency cluster of SMP workstations are emphasized with a graphical application that manages huge maps consisting of several JPEG images.

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“…A portable parallel programming environment 6] is key to the success of high performance computing systems. Over the last few years, researchers have developed standard interfaces such as PVM 18,20] and Message Passing Interface ( MPI 3,12]) to provide portability. These interfaces and standards attempt to abstract the intricate details of the hardware, software, and network characteristics from the application developer.…”

Section: Introductionmentioning

confidence: 99%

MPI-LAPI: an efficient implementation of MPI for IBM RS/6000 SP systems

Banikazemi

Govihdaraju

Blackmore³

et al. 2001

IEEE Trans. Parallel Distrib. Syst.

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The IBM RS/6000 SP system is one of the most cost-e ective commercially available high performance machines. IBM RS/6000 SP systems support the Message Passing Interface standard (MPI) and LAPI. LAPI is a low level, reliable and e cient one sided communication API library, implemented on IBM RS/6000 SP systems. This paper explains how the high performance of the LAPI library has been exploited in order to implement the MPI standard more e ciently than the existing MPI. It describes how to avoid unnecessary data copies at both the sending and receiving sides for such an implementation. The resolution of problems arising from the mismatches between the requirements of the MPI standard and the features of LAPI is discussed. As a result of this exercise, certain enhancements to LAPI are identi ed to enable an e cient implementation of MPI on LAPI. The performance of the new implementation of MPI is compared with that of the underlying LAPI itself. The latency (in polling and interrupt modes) and bandwidth of our new implementation is compared with that of the native MPI implementation on RS/6000 SP systems. The results indicate that the MPI implementation on LAPI performs comparably or better than the original MPI implementation in most cases. Improvements of up to 17:3% in polling mode latency, 35:8% in interrupt mode latency, and 20:9% in bandwidth are obtained for certain message sizes. The implementation of MPI on top of LAPI also outperforms the native MPI implementation for the NAS Parallel Benchmarks.

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LPVM: a step towards multithread PVM

Cited by 14 publications

References 6 publications

Performance portability on EARTH: a case study across several parallel architectures

Performance portability on EARTH: a case study across several parallel architectures

Scalable Multithreading in a Low Latency Myrinet Cluster

MPI-LAPI: an efficient implementation of MPI for IBM RS/6000 SP systems

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