Concept

Symmetric multiprocessing

Related publications (102)

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An Analysis of Database System Performance on Chip Multiprocessors

Anastasia Ailamaki, Babak Falsafi, Frederick Ryan Johnson, Ippokratis Pandis

Prior research shows that database system performance is dominated by off-chip data stalls, resulting in a concerted effort to bring data into on-chip caches. At the same time, high levels of integration have enabled the advent of chip multiprocessors and ...

2007

To Share or Not To Share?

Anastasia Ailamaki, Babak Falsafi, Frederick Ryan Johnson, Ippokratis Pandis

Intuitively, aggressive work sharing among concurrent queries in a database system should always improve performance by eliminating redundant computation or data accesses. We show that, contrary to common intuition, this is not always the case in practice, ...

2007

The Granularity of Soft-Error Containment in Shared-Memory Multiprocessors

Babak Falsafi

Concerns over rising soft-error rates in processor logic has led to numerous proposals for error tolerance mechanisms. In this paper, we examine the role of soft-error containment in a shared memory multiprocessor. We study a range of design alternatives b ...

2006

Spatial Memory Streaming

Anastasia Ailamaki, Babak Falsafi

Prior research indicates that there is much spatial variation in applications' memory access patterns. Modern memory systems, however, use small fixed-size cache blocks and as such cannot exploit the variation. Increasing the block size would not only proh ...

2006

Reunion: Complexity-effective multicore redundancy

Babak Falsafi

To protect processor logic from soft errors, multicore redundant architectures execute two copies of a program on separate cores of a chip multiprocessor (CMP). Maintaining identical instruction streams is challenging because redundant cores operate indepe ...

2006

MOVE Processors That Self-replicate and Differentiate

Yann Thoma, Joël Rossier, Pierre-André Mudry

This article describes an implementation of a basic multiprocessor system that exhibits replication and differentiation abilities on the POEtic tissue, a programmable hardware designed for bio-inspired applications. As for a living organism, whose existenc ...

2006

Log-based architectures for general-purpose monitoring of deployed code

Anastasia Ailamaki, Babak Falsafi

Runtime monitoring tools are invaluable for detecting various types of bugs, in both sequential and multi-threaded programs. However, these tools often slow down the monitored program by an order of magnitude or more [4], implying that the tools are ill-su ...

2006

Temporal Streaming of Shared Memory

Anastasia Ailamaki, Babak Falsafi

Coherent read misses in shared-memory multiprocessors account for a substantial fraction of execution time in many important scientific and commercial workloads. We propose Temporal Streaming, to eliminate coherent read misses by streaming data to a proces ...

2005

Performance Evaluation of Barrier Techniques for Distributed Tracing Garbage Collector

David Atienza Alonso

Currently, software engineering is becoming even more complex due to distributed computing. In this new context, portability is one of the key issues and hence a cluster-aware Java Virtual Machine (JVM) that can transparently execute Java applications in a ...

Jon Von Neumann institute for computing (NIC)2005

Store-Ordered Streaming of Shared Memory

Anastasia Ailamaki, Babak Falsafi

Coherence misses in shared-memory multiprocessors account for a substantial fraction of execution time in many important scientific and commercial workloads. Memory streaming provides a promising solution to the coherence miss bottleneck because it improve ...

2005