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Multiprocessing and Parallel Processing pdf notes and ebook download
Neeraj Yadav

Multiprocessing and Parallel Processing pdf notes and ebook download

Neeraj Yadav | 27-May-2016 |
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Hi friends, here Neeraj Yadav uploaded notes for Parallel Processing and Microprocessor And Multicore Systems with title Multiprocessing and Parallel Processing pdf notes and ebook download. You can download this lecture notes, ebook by clicking on the below file name or icon.

Parallel Processing - Introduction

We already looked at parallel processing when we studied pipelining.

Uniprocessors are running out of gas

Even with pipelining (“fine granularity parallelism”) and cache.

Technology, speed of light, and quantum mechanics are now the limit.

It was Rear Admiral Grace Hopper who held up a 6” piece of wire to demonstrate what a nanosecond was (propagation of a pulse thru 6” of wire is a nanosec!) – BTW she was a pioneer in computers, being a co-inventor of COBOL –

The next wave of performance enhancement is parallel processing - at the system level.

At the programming level it is called cooperative processing

The theoretical limit of performance of n processors working in parallel would be a speedup of n over a single processor.

Besides a speedup factor, parallel processing has the potential of being more reliable – if one node crashes, processing continues at a slightly lower performance.

 

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