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High-Performance Communication Primitives and Data Structures on Message-Passing Manycores

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OpenMP on Networks of SMPs

Willy Zwaenepoel

In this paper, we present the first system that implements OpenMP on a network of shared-memory multiprocessors. This system enables the programmer to rely on a single, standard, shared-memory API for parallelization within a multiprocessor and between mul ...

1999

Cacheable Interface Control Registers for High Speed Data Transfer

Babak Falsafi, David Wood

A device interface for communicating between a processor system and a separate device employs cacheable control registers, both to indicate the receipt of a message and to receive messages to be transmitted. The data structure of the cacheable control regi ...

1999

Quantifying the Performance Differences Between PVM and TreadMarks

Willy Zwaenepoel, Sandhya Dwarkadas

We compare two systems for parallel programming on networks of workstations: Parallel Virtual Machine (PVM) a message passing system, and TreadMarks, a software distributed shared memory (DSM) system. We present results for eight applications that were imp ...

1997

An integrated compile-time/run-time software distributed shared memory system

Willy Zwaenepoel, Sandhya Dwarkadas

On a distributed memory machine, hand-coded message passing leads to the most efficient execution, but it is difficult to use. Parallelizing compilers can approach the performance of hand-coded message passing by translating data-parallel programs into mes ...

1996

Introduction to CAP : A language extension for the specification of pipelined parallel applications

Roger Hersch

Programming parallel shared- and distributed-memory architectures remains a difficult task. This contribution proposes a methodology for the hierarchical specification of pipelined parallel applications running on shared- as well as distributed-memory arch ...

Ecole Polytechnique Fédérale de Lausanne1996

Message Passing Versus Distributed Shared Memory on Networks of Workstations

Willy Zwaenepoel, Sandhya Dwarkadas

The message passing programs are executed with the Parallel Virtual Machine (PVM) library and the shared memory programs are executed using TreadMarks. The programs are Water and Barnes-Hut from the SPLASH benchmark suite; 3-D FFT, Integer Sort (IS) and Em ...

1995

Tempest: A Substrate for Portable Parallel Programs

James Richard Larus, David Wood

The paper describes Tempest, a collection of mechanisms for communication and synchronization in parallel programs. With these mechanisms, authors of compilers, libraries, and application programs can exploit-across a wide range of hardware platforms-the b ...

IEEE1995

Design and analysis of a systolic array for neural computation

Research on artificial neural networks (ANNs) has been carried out for more than five decades. A renewed interest appeared in the 80's with the finding of powerful models like J. Hopfield's recurrent networks, T. Kohonen's self-organizing feature maps, and ...

EPFL1994

Cooperative Shared Memory: Software and Hardware for Scalable Multiprocessors

James Richard Larus, David Wood

We believe the paucity of massively parallel, shared-memory machines follows from the lack of a shared-memory programming performance model that can inform programmers of the cost of operations (so they can avoid expensive ones) and can tell hardware desig ...

ACM1993

Modelling of solute transport in groundwater: The impact of supercomputers

David Andrew Barry

Supercomputers can expand greatly the possibililies for modelling subsurface solute transpot. The theory relating to a specific application, viz., multicomponent solute transport, is presented. It is demonstrated that multidimensional realwor1d problems in ...

1993