Software overheads in parallel programming , Computer Networking

Besides these hardware overheads, there are certain software overheads imposed by libraries, parallel compilers, tools and operating systems.

The parallel programming languages are developed for parallel computer environments. These are developed either by introducing new languages (e.g. occam) or by modifying existing languages like, (C and FORTRAN).  Normally the language extension approach is preferred by most computer designs. This decreases compatibility problem.  High-level parallel constructs were added to C and FORTRAN to make these languages suitable for parallel computers. Besides these, optimizing compilers are designed to automatically detect the parallelism in program code and change the code to parallel code.

In addition to development of compilers and languages for parallel programming, a parallel programming environment should also have supporting tools for text editing and development of parallel programmes.

Let us now talk about the examples of parallel programming environments of Cray Y-MP software and Intel paragaon XP/S.

The Cray Y-MP system works with UNICOS operating system.  It has two FORTRAN compilers CFT and CFT 77 for automatic vector code generation. The system software has large library of routines, program management utilities, assembler UNICOS and debugging aids written in C. It supports optimizing, vectorizing, concurrentising facilities for FORTRAN compilers and also has vetorizing and optimizing C compiler. The Cray Y-MP has three multitasking / multiprocessing methods namely, (i) microtasking (ii) macrotasking, , (iii) autotasking. As well, it has a subroutine library, containing a variety of utilities, high performance subroutines along with scientific routines and math.

The Intel Paragaon XP/S system is an extension of Delta systems and Intel iPSC/860, and is a mesh and scalable connected multicompiler which is executed in a distributed memory system.

The processors that for nodes of the system are 50 MHz i860 XP Processors. Furthermore, it uses distributed UNIX based OS technology. The languages supported by Paragaon have C, C++, ADA and Data Parallel Fortran. The tools for integration contain FORGE and Cast parallelisation tools. The programming environment contains an Interactive Parallel Debugger (IPD).

Posted Date: 3/4/2013 5:29:41 AM | Location : United States







Related Discussions:- Software overheads in parallel programming , Assignment Help, Ask Question on Software overheads in parallel programming , Get Answer, Expert's Help, Software overheads in parallel programming Discussions

Write discussion on Software overheads in parallel programming
Your posts are moderated
Related Questions

What are the Advantages of the intranet The most easily noticeable difference between an Internet server and an Intranet server such as Lotus Notes is their design philosophy.

Q. What is Domain Names ? - Full domain name is a sequence of labels separated by dots (.) - Fully competent domain name (FQDN) contains the full name of a host cis.usouthal


FDDI Media Access Control Unlike CSMA/CD networks such like Ethernet token-passing networks are deterministic--you are able to calculate the maximum time that will pass before

what is the best time to use brouter rather than router? what are advantages of using brouter over router?

1) The school has implemented a pilot MPLS VPN which is being evaluated to replace the Bell South Frame Relay solution that provides connectivity to the Bascom Palmer Eye-Institute


Q. Use of Two-Layer Switch? - Performs at the physical as well as data link layer - A bridge with many ports designed for faster performance - Allocates unique port to ea

Question 1 Videoconferencing is used to conduct meetings with the people who are located in far distance. Videoconferencing is an example of which type of computer networks? Expla