Distributed Memory

In this paper we present two parallel algorithms for mining association rules that are well suited for distributed memory parallel computers. The algorithms are developed based on FP-growth method. The first algorithm is a task parallel formulation using a static load balancing technique. The second algorithm improves upon the first algorithm by dynamically balancing the load when the static task assignment leads to load imbalance.

17p binhminhmuatrenngondoithonggio 09-06-2017 45 4   Download

Bài giảng Tính toán song song và phân toán - Chương 3: Kiến trúc bộ nhớ của máy tính song song giới thiệu tới các bạn Shared Memory (bộ nhớ chia sẻ), Distributed Memory (bộ nhớ phân tán); Hybrid Distributed – Shared Memory.

7p maiyeumaiyeu26 23-12-2016 82 6   Download

American Ginseng – Panax quinquefolius L has many contents: taxonomy, botany and distribution, traditional uses, scientific research, pharmacokinetics, pharmacology of ginsenosides, effects on blood sugar and metabolism, diabetic renal damage, memory and cognition,...

34p haokhitihon 21-04-2014 71 6   Download

Hệ điều hành là gì? Tổ chức hệ thống máy tính (Computer-System Organization) Kiến trúc hệ thống máy tính (Computer-System Architecture) Cấu trúc hệ điều hành (Operating-System Structure) Các hoạt động hệ điều hành (Operating-System Operations) Quản trị quá trình (Process Management) Quản trị bộ nhớ (Memory Management) Quản trị lưu trữ (Storage Management) Bảo vệ và an ninh (Protection and Security) Các hệ thống phân tán (Distributed Systems) Các hệ thống mục đích đặc biệt (Special-Purpose Systems) Môi trường tính toán (Computing Environments)...

40p duytan7697 13-06-2013 82 15   Download

Multitasking provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously Within a single program, multithreading allows multiple parts, or threads, to run simultaneously An operating system’s multiprocessing capability supports a division of labor among all the processing units

55p trada85 18-01-2013 59 5   Download

Sums of two squares near perfect squares by R. C. Vaughan∗∗∗ In memory of Pritish Limani (1983–2003) Abstract Let C be a nondegenerate planar curve and for a real, positive decreasing function ψ let C(ψ) denote the set of simultaneously ψ-approximable points lying on C. We show that C is of Khintchine type for divergence; i.e. if a certain sum diverges then the one-dimensional Lebesgue measure on C of C(ψ) is full. We also obtain the Hausdorff measure analogue of the divergent Khintchine type result. ...

61p noel_noel 17-01-2013 51 7   Download

Hệ điều hành là gì? Tổ chức hệ thống máy tính (Computer-System Organization) Kiến trúc hệ thống máy tính (Computer-System Architecture) Cấu trúc hệ điều hành (Operating-System Structure) Các hoạt động hệ điều hành (Operating-System Operations) Quản trị quá trình (Process Management) Quản trị bộ nhớ (Memory Management) Quản trị lưu trữ (Storage Management) Bảo vệ và an ninh (Protection and Security) Các hệ thống phân tán (Distributed Systems) Các hệ thống mục đích đặc biệt (Special-Purpose Systems) Môi trường tính toán (Computing Environments)...

40p nghiapro512 22-09-2012 161 37   Download

Linux History Design Principles Kernel Modules Process Management Scheduling Memory Management File Systems Input and Output Interprocess Communication Network Structure Security To explore the history of the UNIX operating system from which Linux is derived and the principles which Linux is designed upon To examine the Linux process model and illustrate how Linux schedules processes and provides interprocess communication To look at memory management in Linux To explore how Linux implements file systems and manages I/O devices...

62p perpan 02-09-2012 77 16   Download

I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Hardware Operations Streams Performance Explore the structure of an operating system’s I/O subsystem Discuss the principles of I/O hardware and its complexity Provide details of the performance aspects of I/O hardware and software .I/O Hardware Incredible variety of I/O devices Common concepts Port Bus (daisy chain or shared direct access) Controller (host adapter) I/O instructions control devices Devices have addresses, used by Direct I/O instructions Memory-mapped I/O...

38p perpan 02-09-2012 66 13   Download

Background Demand Paging Copy-on-Write Page Replacement Allocation of Frames Thrashing Memory-Mapped Files Allocating Kernel Memory Other Considerations Operating-System Examples Silberschatz, Galvin and Gagne ©2005 .Objectives To describe the benefits of a virtual memory system To explain the concepts of demand paging, page-replacement algorithms, and allocation of page frames To discuss the principle of the working-set model Virtual memory – separation of user logical memory from physical memory....

70p perpan 02-09-2012 70 14   Download

Background Swapping Contiguous Memory Allocation Paging Structure of the Page Table Segmentation Example: The Intel Pentium To provide a detailed description of various ways of organizing memory hardware To discuss various memory-management techniques, including paging and segmentation To provide a detailed description of the Intel Pentium, which supports both pure segmentation and segmentation with paging Program must be brought (from disk) into memory and placed within a process for it to be run Main memory and registers are only storage CPU can access directly Register access in ...

57p perpan 02-09-2012 65 8   Download

The Occipitotemporal Network for Face and Object Recognition: Prosopagnosia and Object Agnosia Perceptual information about faces and objects is initially encoded in primary (striate) visual cortex and adjacent (upstream) peristriate visual association areas. This information is subsequently relayed first to the downstream visual association areas of occipitotemporal cortex and then to other heteromodal and paralimbic areas of the cerebral cortex.

5p ongxaemnumber1 29-11-2010 60 3   Download

The correspondence between individual deficits of language function and lesion location does not display a rigid one-to-one relationship and should be conceptualized within the context of the distributed network model. Nonetheless, the classification of aphasias of acute onset into specific clinical syndromes helps to determine the most likely anatomic distribution of the underlying neurologic disease and has implications for etiology and prognosis (Table 27-1). The syndromes listed in Table 27-1 are most applicable to aphasias caused by cerebrovascular accidents (CVA).

5p ongxaemnumber1 29-11-2010 81 2   Download

Language allows the communication and elaboration of thoughts and experiences by linking them to arbitrary symbols known as words. The neural substrate of language is composed of a distributed network centered in the perisylvian region of the left hemisphere. The posterior pole of this network is located at the temporoparietal junction and includes a region known as Wernicke's area. An essential function of Wernicke's area is to transform sensory inputs into their lexical representations so that these can establish the distributed associations that give the word its meaning. ...

5p ongxaemnumber1 29-11-2010 68 3   Download

The CPU 315-2 DP is a CPU with medium to large program memory and PROFIBUS DP master/slave interface. It is used in installations which have distributed automation structures in addition to a centralized I/O. It is often used as the standard PROFIBUS DP master in SIMATIC S7-300. The CPU is also used as distributed intelligence (DP slave). It has been optimized in terms of its quantitative framework for using SIMATIC Engineering Tools, e.g

6p hoandk4 25-03-2010 251 65   Download