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Scalable Synchronization in Shared-Memory Systems: Extrapolating, Adapting, Tuning

Publications associées (205)

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OpenMP on Networks of Workstations

Willy Zwaenepoel

We describe an implementation of a sizable subset of OpenMP on networks of workstations (NOWs). By extending the availability of OpenMP to NOWs, we overcome one of its primary drawbacks compared to MPI, namely lack of portability to environments other than ...

1998

Sirocco: cost-effective fine-grain distributed shared memory

Babak Falsafi, James Richard Larus, David Wood

Software fine-grain distributed shared memory (FGDSM) provides a simplified shared-memory programming interface with minimal or no hardware support. Originally software FGDSMs targeted uniprocessor-node parallel machines. This paper presents Sirocco, a fam ...

1998

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

Tradeoffs between False Sharing and Aggregation in Software Distributed Shared Memory

Willy Zwaenepoel

Software Distributed Shared Memory (DSM) systems based on virtual memory techniques traditionally use the hardware page as the consistency unit. The large size of the hardware page is considered to be a performance bottleneck because of the implied false s ...

1997

Shared-Memory Performance Profiling

James Richard Larus

This paper describes a new approach to finding performance bottlenecks in shared-memory parallel programs and its embodiment in the Paradyn Parallel Performance Tools running with the Blizzard fine-grain distributed shared memory system. This approach expl ...

ACM1997

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

The Tempest Approach to Distributed Shared Memory

James Richard Larus, David Wood

This paper summarizes how distributed shared memory (DSM) can be both efficiently and portably supported by the Tempest interface. Tempest is a collection of mechanisms for communication and synchronization in parallel programs. These mechanisms provide co ...

IEEE1996

Geographical information system application of multiprocessor multidisk image servers

Roger Hersch

The article analyses the behavior of two kinds of multiprocessor multidisk storage server architectures for a data intensive application, namely for spatial queries in geographical information systems (GIS). The two kinds of servers are: (1) a workstation ...

Elsevier1996

Efficient Support for Irregular Applications on Distributed-Memory Machines

James Richard Larus

Irregular computation problems underlie many important scientific applications. Although these problems are computationally expensive, and so would seem appropriate for parallel machines, their irregular and unpredictable run-time behavior makes this type ...

ACM1995

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