A two-slot addition called Splash, which enables a Sun workstation to outperform Cray-2 on certain applications, is discussed. Following an overview of the Splash design and programming, hardware development described. The logic description generator examined in detail. Splash's runtime environment described, example application, that sequence comparison, given.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Supermon is a flexible set of tools for high speed, scalable cluster monitoring. Node behavior can be monitored much faster than with other commonly used methods (e.g., rstatd). In addition, uses data protocol based on symbolic expressions (S-expressions) at all levels Supermon, from individual nodes to entire clusters. This contributes Supermon's scalability and allows it function in heterogeneous environment. paper presents the architecture discuss initial performance measurements...

An approach to interprocesses communication over fast networks is described. It based on the assumption that essence of problem was network abstraction, is, what model hardware interfaces provides computer. In this abstraction computer memory, directly application, with no operation system intervention required effect movement data. Three systems idea are examined. They Memnet, Mether, and CapNet. UPWARDS, an attempt develop software can provide access bandwidth available in future...

Microbenchmarks, i.e. very small computational kernels, have become commonly used for quantitative measures of node performance in clusters. For example, a benchmark the amount time required to perform fixed quantum work. Unfortunately, this is one many that violate well known rules from sampling theory, leading erroneous, contradictory or misleading results. At minimum, these types benchmarks can not be identify time-based activities may interfere with and hence limit application...

There are many APIs for connecting and exchanging data between network peers. Each interface varies wildly based on metrics including performance, portability, complexity. Specifically, interfaces make design or implementation choices emphasizing some of the more desirable (e.g., performance) while sacrificing others portability). As a direct result, software developers building large, network-based applications forced to choose specific API complex, multi-dimensional set criteria. Such...

Our zero-copy ATM Memory-Integrated Network interface targets 1-Gbps bandwidth with 1.2-μs latency for applications that need to send or receive data at very frequent intervals. Applications can packets without operating system support, initiate packet transmission one memory write, and determine arrival. At the same time use MINI communications supporting standard networking software. Simulations show "bounces" a single cell in round-trip of 3.9 μs 10 Mbytes/s.

The authors demonstrate a new technique for automatically synthesizing digital logic from high level algorithmic description in data parallel language. methodology has been implemented using the Splash 2 reconfigurable arrays programs written Data-parallel Bit-serial C (dbC). translator generates VHDL of SIMD processor array with one or more processors per Xilinx 4010 FPGA. instruction set each is customized to dbC program being processed. In addition usual arithmetic operations, nearest...

This paper describes a hierarchical WDM-based optical network testbed project that is being constructed to interconnect large number of high performance computers create distributed shared memory environment. The objective the architecture achieve scalability yet avoid requirement multiple wavelength tunable devices per node. It singlehop all-optical network; packet remains in form from source destination. features channel reuse at each level, allowing very system sizes. partitions traffic...

The Los Alamos Message Passing Interface (LA-MPI) is an end-to-end network-failure-tolerant message-passing system designed for terascale clusters. LA-MPI a standard-compliant implementation of MPI to tolerate network-related failures including I/O bus errors, network card and wire-transmission errors. This paper details the distinguishing features LA-MPI, support concurrent use multiple types interface, reliable message transmission utilizing paths routes between given source destination....

Changes made to a distributed shared memory that runs of Sun workstations under SunOS 4.0 operating systems, called Mether, are outlined. Protocols developed use Mether and minimize host load, network latency discussed. The changes involve exposing an inconsistent store the applications making access consistent versions very convenient, providing both demand-driven data-driven semantics for updating pages, allowing user specify only small subset page needs be transferred.< <ETX...

The authors describe the Logic Description Generator (LDG), a design tool specifically geared to aid in implementation of systolic algorithms on reconfigurable logic arrays. It is used specify designs for Splash, linear array Xilinx chips. LDG supports notion logical cell, which may be repetitively layed out across chip, and whose instances interconnected as array. also contains reshape operator, allows hardware designer place each component at specific location chip. Another feature ability...

Summary form only given. This paper describes the use of "Plan 9 from Bell Labs " distributed operating system as a grid computing infrastructure. In particular it compares solutions using de facto standard middleware toolkit for grids, Globus, to an environment constructed computers running Plan system. These environments are compared based on features they offer in context computing: authentication, security, data management, and resource discovery.

DOE has put forth a considerable effort into light-weight kernels for high performance computing, yet there been lack of acceptance and use, perhaps due to the limited support hardware software. The arguments have based on problem interference , i.e. changes in application that occur when operating system pre-empts application. Nevertheless, using existing, well supported systems HPC quite successful. problems with standard remain, however, although their impact applications is still not...

How can we automatically clean and curate online reviews to better mine them for knowledge discovery? Typical are full of noise abnormalities, hindering semantic analysis leading a poor customer experience. Abnormalities include non-standard characters, unstructured punctuation, different/multiple languages, misspelled words. Worse still, people will leave "junk" text, which is either completely nonsensical, spam, or fraudulent. In this paper, describe three types noisy abnormal reviews,...

We are designing a zero-copy ATM interface call MINI, the Memory Integrated Network Interface. MR41 has target bandwidth of I Gbits/sec and will support appli cation-to-application latency 1.3 microseconds. MINI is multi-user which resides in mem ory space computer system, as opposed to 1/0 space. Applications have direct access pages memory used for network 1/0-, thus cations can send receive packets with no operating system needed. An application initiate packet transmission one write; it...

How can we automatically clean and curate online reviews to better mine them for knowledge discovery? Typical are full of noise abnormalities, hindering semantic analysis leading a poor customer experience. Abnormalities include non-standard characters, unstructured punctuation, different/multiple languages, misspelled words. Worse still, people will leave junk text, which is either completely nonsensical, spam, or fraudulent. In this paper, describe three types noisy abnormal reviews,...