Static and Dynamic Parallel Computation of Connected Components

نویسنده

  • Paolo Ferragina
چکیده

The connected components of an undirected graph are determined in the EREW model with p processors, using a parallel extension of the “sparsification” technique. A previous algorithm due to Kruskal et al. is optimal forp < ml/(*+&) < n/2. We show that our algorithm is work-optimal for an extended range of values. Using the “sparsification” tree data structure we provide also a dynamic algorithm to maintain the connectivity property of a graph as edges are inserted and deleted.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dynamic Compensation of Electrical Power Systems Using Multilevel Voltage Source Inverter

A New Static Var Generator (SVG), using cascaded full-bridge inverters (FBI) with binary output levels and the parallel connections of two cascaded inverters by means of current sharing reactor in each phases is introduced. The new M-level inverter, where M is 2n+2 - 3, consists of only 2n single-phase full bridges for each phases. The proposed technique not only increases the current capacity ...

متن کامل

Lower Bounds for Dynamic Tree Embedding in Bipartite Networks

There are many parallel computations that are tree structured. The structure of a tree is usually unpredictable at compiler-time; the tree grows gradually during the course of a computation. The dynamic tree embedding problem is to distribute the processes of a parallel computation over processors in a parallel computer such that processors perform roughly the same amount of computation, and th...

متن کامل

Static and Dynamic Analysis of Bus Structure and Chassis of O-457

With due attention to the fact that the local and foreign vehicle industries are changing and modifying the previous designs in order to produce new designs, the components of self-propelled are to be differently analyzed. Static and dynamic analysis is one of them. In this paper, chassis and body of a o-457 bus were studied and analyzed under finite element method (using ANSYS).This process wa...

متن کامل

Numerical Computation of Rolling Resistance Based on the Result of Tire/Road Static Contact Analysis

Among various dissipating mechanisms, the viscoelastic effect of rubber material on creation of rolling resistance is responsible for 10-33% dissipation of supplied power at the tire/road interaction surface. So, evaluating this kind of loss is very essential in any analysis concerned with improving the fuel consumption of vehicles and resultantly energy savage. Hysteretic loss is a fraction of...

متن کامل

Dynamic Stabilization of Wind Farms Deploying Static Synchronous Series Compensator

Encountering series-compensated transmission lines, sub-synchronous resonance (SSR) may strike the power system by jeopardizing its stability and mechanical facilities. This paper aims to verify the capability of static synchronous series compensator (SSSC) in mitigating the mechanical and electrical oscillations such as SSR in wind farm integrations. A wind turbine with a self–excited inductio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Inf. Process. Lett.

دوره 50  شماره 

صفحات  -

تاریخ انتشار 1994