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2. (30 points) In the following code, the sum of squares of elements is needed along the middle dimension of a 3D array. Make changes

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2. (30 points) In the following code, the sum of squares of elements is needed along the middle dimension of a 3D array. Make changes to improve performance (target is 1.5 GFLOPs; I don't think much higher is easy) int i,j,k; double sum, x [N] CN] N],y [N] [N; for(i-0;i<>

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