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Title: SCADA linux appliance (SLAP) system.


No abstract prepared.

Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
OSTI Identifier:
Report Number(s):
TRN: US200616%%79
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the 2006 Clemson Power Systems Conference, Clemson, SC, March 14-17, 2006.
Country of Publication:
United States

Citation Formats

Stamp, Jason Edwin. SCADA linux appliance (SLAP) system.. United States: N. p., 2006. Web.
Stamp, Jason Edwin. SCADA linux appliance (SLAP) system.. United States.
Stamp, Jason Edwin. Wed . "SCADA linux appliance (SLAP) system.". United States. doi:.
title = {SCADA linux appliance (SLAP) system.},
author = {Stamp, Jason Edwin},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}

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  • As Linux clusters have matured as platforms for low-cost, high-performance parallel computing, software packages to provide many key services have emerged, especially in areas such as message passing and net-working. One area devoid of support, however, has been parallel file systems, which are critical for high-performance I/O on such clusters. We have developed a parallel file system for Linux clusters, called the Parallel Virtual File System (PVFS). PVFS is intended both as a high-performance parallel file system that anyone can download and use and as a tool for pursuing further research in parallel I/O and parallel file systems for Linuxmore » clusters. In this paper, we describe the design and implementation of PVFS and present performance results on the Chiba City cluster at Argonne. We provide performance results for a workload of concurrent reads and writes for various numbers of compute nodes, I/O nodes, and I/O request sizes. We also present performance results for MPI-IO on PVFS, both for a concurrent read/write workload and for the BTIO benchmark. We compare the I/O performance when using a Myrinet network versus a fast-ethernet network for I/O-related communication in PVFS. We obtained read and write bandwidths as high as 700 Mbytes/sec with Myrinet and 225 Mbytes/sec with fast ethernet.« less
  • Recent progress in performance coupled with a decline in price for copper-based gigabit Ethernet (GigE) interconnects makes them an attractive alternative to expensive high speed network interconnects (NIC) when constructing Linux clusters. However traditional message passing systems based on TCP for GigE interconnects cannot fully utilize the raw performance of today's GigE interconnects due to the overhead of kernel involvement and multiple memory copies during sending and receiving messages. The overhead is more evident in the case of mesh connected Linux clusters using multiple GigE interconnects in a single host. We present a general message passing system called QMP-MVIA (QCDmore » Message Passing over M-VIA) for Linux clusters with mesh connections using GigE interconnects. In particular, we evaluate and compare the performance characteristics of TCP and M-VIA (an implementation of the VIA specification) software for a mesh communication architecture to demonstrate the feasibility of using M-VIA as a point-to-point communication software, on which QMP-MVIA is based. Furthermore, we illustrate the design and implementation of QMP-MVIA for mesh connected Linux clusters with emphasis on both point-to-point and collective communications, and demonstrate that QMP-MVIA message passing system using GigE interconnects achieves bandwidth and latency that are not only better than systems based on TCP but also compare favorably to systems using some of the specialized high speed interconnects in a switched architecture at much lower cost.« less
  • We present NWPerf, a new system for analyzing fine granularity performance metric data on large-scale supercomputing clusters. This tool is able to measure application efficiency on a system wide basis from both a global system perspective as well as providing a detailed view of individual applications. NWPerf provides this service while minimizing the impact on the performance of user applications. We describe the type of information that can be derived from the system, and demonstrate how the system was used to detect and eliminate a performance problem in an application that improved performance by up to several thousand percent. Themore » NWPerf architecture has proven to be a stable and scalable platform for gathering performance data on a large 1954-CPU production Linux cluster at PNNL.« less
  • Technological changes in programmable logic controllers and the need to improve the architecture of Mine Monitoring and Control Systems (MMCS) and its extensibility, capabilities, and useability has resulted in the design of an IBM compatible personal computer (PC) based system. The system architecture allows for off the shelf computer hardware to be integrated into a system that utilities Pyott-Boone Electronic`s field proven peripheral devices with over one-hundred different programmable logic-controllers (PLC) manufacturer`s products on a common graphics graphics platform. The system uses an ethernet based network, provides graphics displays of system data, and operates under the Genesis software package. Telemetrymore » for the system utilities the Pyott-Boone network operating over a shielded twisted pair of copper wires. Carbon monoxide monitors, methane monitors, a time tried and proven belt controller, and numerous other devices using standard outputs such as 4-20 Mine Monitoring and Control System for more than a decade. The upgrading of the control system to standard PC hardware and the addition of compatibility with over one-hundred different types of PLC`s provides distributed data processing for the system with hierarchial processing operating under the Genesis software on the ethernet network for individual mine site monitoring and control. The hierarchial design of the system further provides the capability for remote monitoring of the system from other distant locations.« less