Dave Barry in Cyberspace by Dave Barry

By Dave Barry


A self-professed computing device geek who truly does home windows ninety five, bestselling slapstick comedian Dave Barry takes us on a hilarious harddrive through the knowledge superhighway--and into the very center of our on-line world, asking the provocative query: If God had sought after us to be concise, why supply us such a lot of fonts?

Inside you'll locate juicy bytes on

• tips to purchase and manage a working laptop or computer; the first step: Get Valium
• Nerdstock within the desolate tract; Or: invoice Gates Is Elvis
• software program: Making Your machine Come Alive So it will possibly assault You
• be aware Processing: the right way to Press a big variety of Keys with out Ever truly Writing Anything
• chosen sites, together with Cursing in Swedish, Deformed Frog photographs, and The bogs of Melbourne, Australia

And a lot, a lot more!

"VERY humorous . . . After an afternoon spent gazing a working laptop or computer video display, consider the ebook as one of those monitor saver to your brain."
--New York instances e-book evaluation

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Extra resources for Dave Barry in Cyberspace

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It is usually more efficient to handle messages asynchronously. An asynchronous receive would allow processes to alert the operating system that messages are expected and they should be delivered and processed as soon as they arrive. In this approach the processor is not idle until the message arrives but continues to execute instructions until the information in the message is required. If, at that point, the message has not arrived, the process will wait until the message arrives. A process can also send messages asynchronously.

Each processor then has a partial value of the global sum and it is therefore necessary to collect this data. The next code section indicates a possible way of doing this. For the example just given, nodes 1, 2 and 3 would send their results back to node 0 and node 0 needs to collect all of these values together. This is done in the DO loop which receives NPROC - 1 values which are stored in the TEMP buffer for the summation to be performed. It should be noted that only node 0 has the final answer.

T=T2 y=O~ X=O T=T4 _____ T=T1 ~ x= HX elliptic Partial Differential Equation (PDE) can now be solved, subject to the above conditions, by a variety of methods. For this example, three solution strategies will be considered, namely: (i) Jacobi; (ii) Gauss-Seidel; and, (iii) Conjugate Gradient (without preconditioning). Each approach illustrates different features typically found in CFD. The Jacobi solver is explicit and updates the halo points after each complete iteration. This is typical of many explicit, time-marching schemes used in CFD.

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