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3 edition of Data partitioning and load balancing in parallel disk systems found in the catalog.

Data partitioning and load balancing in parallel disk systems

Peter Scheuermann

Data partitioning and load balancing in parallel disk systems

by Peter Scheuermann

  • 310 Want to read
  • 10 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Balancing.,
  • Heuristic methods.,
  • Input/output routines.,
  • Disk operating system (DOS),
  • Parallel computers.

  • Edition Notes

    StatementPeter Scheuermann, Gerhard Weikum, Peter Zabback.
    Series[NASA contractor report] -- NASA-112995., NASA contractor report -- NASA CR-112995.
    ContributionsWeikum, Gerhard., Zabback, Peter., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15539439M

    Introducation to Parallel Computing is a complete end-to-end source of information on almost all aspects of parallel computing from introduction to architectures to programming paradigms to algorithms to programming standards. - Selection from Introduction to Parallel Computing, Second Edition [Book]. The first partition, /dev/hda1, is a DOS-formatted file system used to store the alternative operating system (Windows 95).This gives me 1 Gb of space for that operating system. The second partition, /dev/hda2, is a physical partition (called "extended") that encompasses the remaining space on the is used only to encapsulate the remaining logical partitions (there can only be 4.

    Conclusion Contributions: n Propose to cache the reusable data by on-chip registers of FPGA n Propose a new data reuse strategy n Revise the padding methodto generate intra-bank offset more efficiently. Results: Compared with the GMP partition scheme, n ours can reduce the required number of banks by% on average. n The number of LUTs is reduced by %, Flip-Flops by %,File Size: 2MB. Algorithm for Performance Optimization of Data-Parallel Applications on Heterogeneous HPC Platforms”. They are: Experimental methodology followed to obtain speed functions. Use case containing matrix-vector multiplication on a homogeneous cluster of Intel Xeon Phi co-processors. Load balancing and load imbalancing algorithms.

      The most popular textbooks do not cover topics such as data-dependency, load-balancing, and scheduling. They do not mention important areas such as parallel databases even though all of the commercial databases today are parallel, and technologies such as data-mining and data-warehouse could not exist without large-scale parallel machines. Optimal Data Partitioning •Performance and cost metrics –Job latency –Number of processes –Memory consumption –Disk and network I/O Given code and data, can we generate a data partitioning scheme to optimize performance, without running code on whole data set?


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Data partitioning and load balancing in parallel disk systems by Peter Scheuermann Download PDF EPUB FB2

Data partitioning and load balancing in parallel disk systems Article (PDF Available) in The VLDB Journal 7(1) February with Reads How we measure 'reads'. Parallel disk systems provide opportunities for exploiting I/O parallelism in two possible ways, namely via inter-request and intra-request parallelism.

In this paper, we discuss the main issues in performance tuning of such systems, namely striping and load balancing, and show their relationship to response time and throughput. We outline the main components of an intelligent, self-reliant Cited by: Get this from a library.

Data partitioning and load balancing in parallel disk systems. [Peter Scheuermann; Gerhard Weikum; Peter Zabback; United States. National Aeronautics and Space Administration.]. Range partitioning is also ideal when you periodically load new data and purge old data.

This adding or dropping of partitions is a major manageability enhancement. It is common to keep a rolling window of data, for example keeping the past 36 months of data online. Range partitioning simplifies this process.

Parallelism and Partitioning in Data Warehouses. Oracle considers the disk affinity of the granules on MPP systems to take advantage of the physical proximity between parallel execution servers and disks. This might limit the utilization of the system and the load balancing across parallel execution servers.

In parallel simulations, partitioning and load-balancing algorithms compute the distribution of application data and work to processors. The effectiveness of this distribution greatly influences. Optimizing Data Partitioning for Data-Parallel Computing Qifa Ke, Vijayan Prabhakaran, Yinglian Xie, Yuan Yu In these systems, data partitioning is used to con-trol the parallelism, and is central for these systems to job latency, memory utilization, disk and network I/O.

And Cited by: Load-Balancing Algorithms and Parameters Load-Balancing Parameters Simple Partitioners for Testing Block Partitioning Cyclic Partitioning Random Partitioning Geometric (Coordinate-based) Partitioners Recursive Coordinate Bisection (RCB) Recursive Inertial Bisection (RIB) Hilbert Space-Filling Curve (HSFC) Partitioning Refinement Tree Based.

Skew-Aware Automatic Database Partitioning in Shared-Nothing, Parallel OLTP Systems SIGMODPavlo et al. •Load balancing in the presence of time-varying skew Automatic Database Design Tool for Parallel Systems Skew-Aware Automatic Database Partitioning in Shared-Nothing, Parallel OLTP Systems SIGMOD What are the key issues.

We can see this directly by looking at the Visual Partitioning sample shipped by the Task Parallel Library team, and available as part of the Samples for Parallel Programming. When we run the sample, with four cores and the default, Load Balancing partitioning scheme, we see this.

Partitioning and Load Balancing Handling a large mesh or a linear system on a supercomputer or on a workstation cluster usually requires that the data for the problem be somehow partitioned and distributed among the pro-cessors.

The quality of the partition a ects the speed of solution: a. Advances in Parallel Partitioning, Load Balancing and Matrix Ordering for Scientific Computing Erik G.

Boman1, Umit V. Catalyurek2, C´edric Chevalier1, Karen D. Devine1, Ilya Safro3, Michael M. Wolf4 1 Scalable Algorithms Dept., Sandia National Laboratories 2 Biomedical Informatics and Electrical & Computer Engineering Depts., Ohio State Univ. 3 Mathematics and Computer Science Division.

by blocking, inter-node communication, and load balancing issues. Automatic database partitioning has been extensively re-searched in the past.

As a consequence, nowadays, most DBMSs o er database partitioning design advisory tools. The idea of these tools analyze the workload at a given time and suggest a (near-)optimal repartition scheme in a.

Abstract. Data warehouse queries pose challenging performance problems that often necessitate the use of parallel database systems (PDBS). Although dynamic load balancing is of key importance in PDBS, to our knowledge it has not yet been investigated thoroughly for parallel data by: Lecture 7 (1/29/02): Partitioning and Load Balancing Partitioning.

Partitioning is the process of dividing up a computation among processors. There are often many ways of doing this, and the appropriate scheme depends on our application's requirements as well as the hardware. In parallel (IR) systems, where a large-scale collection is indexed and searched, the query response time is limited by the time of the slowest node in the system.

Thus distributing the load equally across the nodes is very important issue. Mainly there are two methods for collection indexing, namely document-based and term-based indexing. In term-based partitioning, the terms of the global.

Automated Partitioning Design in Parallel Database Systems Rimma Nehme Microsoft Jim Gray Systems Lab Madison, WI [email protected] Nicolas Bruno Microsoft Redmond, WA USA [email protected] ABSTRACT In recent years, Massively Parallel Processors (MPPs) have gained ground enabling vast amounts of data processing.

In such environ-File Size: KB. How is partitioning done for something like. (0,(i)=> buffer[i] = 0); My assumption was that for an n core machine, work would be partitioned n way and n threads will carry out the work payload. Which means for example = and n = 4, each thread will get,blocks. ( element array is an example to illustrate partitioning.

Performance of data-parallel computing (e.g., MapReduce, DryadLINQ) heavily depends on its data partitions. Solutions implemented by the current state of the art systems are far from optimal. Techniques proposed by the database community to find optimal data partitions are not directly applicable when complex user-defined functions and data models are by: Stefan Edelkamp, Stefan Schrödl, in Heuristic Search, Depth Slicing.

One drawback of static load balancing via fixed partition functions is that the partitioning may yield different search efforts in different levels of the search tree, so that processes far from the root will encounter frequent idling.

Subsequent efforts for load balancing can raise considerable especially for. Load balancing is the subject of research in the field of parallel computers. Two main approaches exist: static algorithms, which do not take into account the state of the different machines, and dynamic algorithms, which are usually more general and more efficient, but require exchanges of information between the different computing units, at.this paper, we propose a power-efficient parallel TCAM-based lookup engine with a distributed logical caching scheme for dynamic load-balancing.

In order to distribute the lookup requests among multiple TCAM chips, a smart partitioning approach called pre-order splitting divides the route table into multiple sub-tables for parallel processing. The above said data-partitioning strategies are useful in partitioning data across several processors to establish a complete parallel system.

Here, the term ‘Complete Parallel System’ means the Parallel Database System which can deliver the expected improvement in the .