Suppose John tries to execute the loop below as efficiently as possible. He has 2 different machines,
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Question:
Suppose John tries to execute the loop below as efficiently as possible. He has 2 different machines, a MIMD machine and a SIMD machine.
for (i=0; i<1000;i++)
for (j=0; j<2000;j++)
X_array [i][j] = Y_array [i][j] + 100;
(1) For a 4-CPU MIMD machine, show the sequence of MIPS instructions that you would execute on each CPU. What is the speedup for this MIMD machine?
(2) For an 8-wide SIMD machine (8 parallel SIMD functional units), compare the number of instructions executed on the SIMD machine to the MIMD machine.
Related Book For
Computer Organization and Design The Hardware Software Interface
ISBN: 978-0124077263
5th edition
Authors: David A. Patterson, John L. Hennessy
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