Assignment01Fall2010

Assignment01Fall2010 - 1.8 Consider computing the electric...

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525.412 Computer Architecture Assignment 1 1.1 The PowerPC 601 processor addresses a maximum of 2 32 bytes of memory. What is the maxi- mum number of 64-bit words that can be stored in this memory? 1.6 a. What is the percentage relative error in using 2 10 as an approximation for 10 3 ? b. What is the percentage relative error in using 2 30 as an approximation for 10 9 ? c. What is the general formula for the relative error in using 2 10 k as an approximation for 10 3 k ? Write your answer in the form α k - 1 for some number α .
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Unformatted text preview: 1.8 Consider computing the electric Feld in a box 1 . 5 cm on a side. The spatial resolution in each dimension is to be 50 μ m. Assume that it takes 150 instructions for every point in the 3-D grid to do the calculation. How long does the computation take on a computer that can execute at a rate of 100 M±OPS (millions of ²oating point instructions per second)? Assume that the Frst computation calculates the local Feld at one of the eight corners of the box. 1...
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