Industrial Strength Parallel Computing by Alice E. Koniges

By Alice E. Koniges

Most sensible documentation of tangible functions i've got ever noticeable. This publication has helped my scholars to appreciate the genuine international of parallel computing.

Show description

Read or Download Industrial Strength Parallel Computing PDF

Similar design & architecture books

Operational Amplifiers: Theory and Design

Operational Amplifiers – thought and layout, moment variation offers a scientific circuit layout of operational amplifiers. Containing cutting-edge fabric in addition to the necessities, the ebook is written to attract either the circuit dressmaker and the method clothier. it's proven that the topology of all operational amplifiers will be divided into 9 major total configurations.

Computer and Information Security Handbook

The second edition of this entire guide of desktop and knowledge security provides the main entire view of machine protection and privateness to be had. It bargains in-depth insurance of safety conception, expertise, and perform as they relate to demonstrated applied sciences in addition to fresh advances.

Languages, Design Methods, and Tools for Electronic System Design: Selected Contributions from FDL 2015

This e-book brings jointly a range of the easiest papers from the eighteenth variation of the discussion board on specification and layout Languages convention (FDL), which came about on September 14-16, 2015, in Barcelona, Spain. FDL is a well-established foreign discussion board dedicated to dissemination of analysis effects, sensible stories and new rules within the software of specification, layout and verification languages to the layout, modeling and verification of built-in circuits, complicated hardware/software embedded structures, and mixed-technology platforms.

Extra resources for Industrial Strength Parallel Computing

Example text

Tasks are generally created at program startup or very shortly thereafter. Communication and synchronization between the tasks is accomplished through calls to library routines. The lower-level mechanism by which the message is sent is transparent to the application programmer. Message passing is largely the model of choice on MIMD computers with physically distributed memory because the close relationship between the model and the hardware architecture allows the programmer to write code in an optimal manner for the hardware.

The difference is that a CPU fetches its own instructions and has its own program counter that points to the instruction to be fetched at a given instant. A processing element is fed instructions by its control unit, which has the only program counter. Adding to the terminology confusion, we have SPMD, which stands for Single Program Multiple Data and is basically a restriction of the MIMD model. In SPMD, each processor executes exactly the same program on a different subset of the program data.

However, this is not the typical case. One key reason is that at most a fraction, f, of the program may be parallelizable. 9 percent parallel. Therefore, there is little point to encountering the overhead in requesting and releasing processes because the processors are needed almost the whole time. Speedup = 1 (1 − f )+ f / p This is the famous Amdahl’s law. If f is 100 percent, then speedup is P. To make good use of an MPP with a large number of processors, it is necessary to have f fairly close to 100 percent.

Download PDF sample

Rated 4.09 of 5 – based on 17 votes