Member Login

E-mail:    Password:  




 TitleDate AddedCompany
whitepaper Exploring the Performance of the Myrinet PC-Cluster on Linux0000-00-00 International School for Advanced Studies
  Both the Infiniband and the Virtual Interface Architecture (VIA) aim at providing effective cluster communication. However, the specification of the former does not define APIs. It contains an abstract description of the protocol verbs. The dependence of an implementation on the various features of the hardware, firmware, and software are not defined in the Infiniband architecture specification making it difficult to implement now. VIA is a standard mechanism architecture independent from physical layer to deliver performance directly to applications. Existing implementations of VIA come in three flavours, one of these implementations based on the Myricom's Myrinet intelligent NIC is examined in this paper. The paper further presents a series of experiments on the communication performance of three different Myrinet PC-cluster on Linux.

Tags: Linux Server OS, High Performance Computing		   
whitepaper Rapid Reaction Linux: Linux With Low Latency and High Timing Accuracy0000-00-00 Universitat der Bundeswehr Munchen
  Rapid Reaction Linux has been created at the University of German Federal Armed Forces in order to enhance realtime capabilities of the standard Linux kernel. Rapid Reaction Linux combines two well known patches to achieve this goal on the Intel x86 architecture using processors like Intel Pentium or any newer descendant.

Tags: Linux Server OS		   
whitepaper Performance of a Linux Implementation of Class Based Queueing0000-00-00 National University of Singapore
  Class Based Queueing (CBQ) is a link-sharing and resource management mechanism for packet networks. It has ported the CBQ implementation on FreeBSD, also known as Alternate Queueing (ALTQ), to the Linux platform. This paper investigates the performance of CBQ in terms of latency, bandwidth guarantee and delay. CBQ is found to be able to preserve bandwidth allocated to the classes. However, it does not scale well with the number of data flows as it incurs additional delay with each new data flow admitted. Due to this additional delay, the admission control cannot predict the delay experienced by the existing flows after admitting a new flow.

Tags: Linux Server OS		   
whitepaper Predictable Management of System Resources for Linux0000-00-00 Indian Institute of Science
  In current operating systems, a process acts both as a protection domain and as a resource principal. This paper tries to investigate how this model fits into a Linux framework, especially, in the soft real time context. It shows that this model allows to allocate resources in a predictable manner and hence can be used for scheduling soft real-time tasks like multimedia. This paper also provides a framework in Linux which allows privileged users to have their own schedulers for scheduling a group of activities so that they can make use of the domain knowledge about the applications.

Tags: Linux Server OS		   
whitepaper An Open Source Hands-On Course With Real-Time Linux0000-00-00 Katholieke Universiteit Leuven
  This paper describes the documentation that comes with the hands-on course on real-time systems, as it is presented to fourth-year mechatronics engineering students. This hands-on course is one part of a cluster of three, the others being more theoretical courses on real-time software, and on processors and interfacing for real-time systems. The hands-on course is using Real-Time Linux (RTLinux and RTAI), and its examples focus on mechatronic systems for mechanical engineers, i.e., mostly motion control applications. The aim is to serve as a starting point for cooperation in the field of educational material or real-time courses for beginning engineering students, because there is a big need to complement the excellent real-time operating system projects with "Higher-level" documentation and guidance.

Tags: Linux Server OS		   
whitepaper Achieving Order Through CHAOS: The LLNL HPC Linux Cluster Experience0000-00-00 Lawrence Livermore National Laboratory
  Livermore Computing Linux clusters run a common software environment that is developed and maintained in-house while drawing components and additional support from the open source community and industrial partnerships. The environment is based on Red Hat Linux and adds kernel modifications, cluster system management, monitoring and failure detection, resource management, authentication and access control, development environment, and parallel file system. The overall strategy has been successful and demonstrates that world-class high-performance computing resources can be built and maintained using commodity off-the-shelf hardware and open source software.

Tags: Linux Server OS		   
whitepaper Multihoming Performance Benefits: An Experimental Evaluation of Practical Enterprise Strategies0000-00-00 IBM
  Multihoming is increasingly being employed by large enterprises and data centers as a mechanism to extract good performance from their provider connections. Today, multihomed end-networks can employ a variety of commercial route control products to optimize performance over multiple ISP links. However, little is known about the mechanisms employed by such products and their relative trade-offs. This paper proposes and evaluates a wide range practical schemes that could go into the design of a route control device and analyze their trade-offs. The proposed schemes are implemented on a Linux-based Web proxy and a trace-based emulation is performed of their relative performance benefits.

Tags: Linux Server OS		   
whitepaper SLURM: Simple Linux Utility for Resource Management0000-00-00 Lawrence Livermore National Laboratory
  Simple Linux Utility for Resource Management (SLURM) is an open source, fault-tolerant and highly scalable cluster management and job scheduling system for Linux clusters of thousands of nodes. Components include machine status, partition management, job management, scheduling, and stream copy modules. This paper presents an overview of the SLURM architecture and functionality.

Tags: Linux Server OS		   
whitepaper The ACCESS Linux Platform and the Hiker Application Framework: Accelerating Mobile Linux Market Growth and Fostering the Mobile Linux Ecosystem2007-04-12 ACCESS
  The ACCESS Linux Platform is the first complete, commercial grade Linux-based platform for mobile phones and converged devices. Based on a standard Linux kernel and other open source components, the ACCESS Linux Platform includes all the middleware services required to build state-of-the-art mobile phones and converged devices. As its name implies, the Hiker Application Framework encompasses those services specifically related to applications.

Tags: Mobile - Wireless Communications, Linux Server OS		   
whitepaper Porting the SGI XFS File System to Linux0000-00-00 Sistina Software
  This paper outlines the history of XFS, its current architecture and implementation, the porting strategy for migrating XFS to Linux, and future plans, including coordinating the work with the Linux hacker community. Applications in film and video, supercomputing, and huge databases all required performance and capacities beyond what EFS, with a design similar to the Berkeley Fast File System; could provide. EFS limitations were similar to those found recently in Linux file systems: small file system sizes (8 gigabytes), small file sizes (2 gigabytes), and slow recovery times using fsck.

Tags: Linux Server OS, Application Development