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[closed book question] Using Amdahl’s Law, if an application has a 10% serial portion, how many processors are needed to achieve a 10x speedup? Choose the most closet answer. 

[Open book question]  Which basic blocks would have divergent branches? Choose all that apply.

[Openbook question]  #define N 10000 __global__ void vectorAdd(float *a, float *b, float *c) {     int idx = blockIdx.x * blockDim.x + threadIdx.x;     if (idx < N/10)         c[idx*10] = a[idx*10] + b[idx*10]; } How can we improve the Floating-point operations per byte for the above code? There are 4 CUDA blocks, and each CUDA block has 10 threads.   choose all 

[Open book] Discuss the pros and cons of having one large matrix size of tensor cores versus many small matrix sizes of tensor cores in GPUs. 

[Openbook question]  #define N 10000 __global__ void vectorAdd(float *a, float *b, float *c) {     int idx = blockIdx.x * blockDim.x + threadIdx.x;     if (idx < N/10)         c[idx*10] = a[idx*10] + b[idx*10]; } In the above code, what will be the Floating-point operations per Byte? Assume that the memory transaction size is 128B and there is no cache. Choose the closest value.

[Open book] #define N 10000 __global__ void vectorAdd(float *a, float *b, float *c) {     int idx = blockIdx.x * blockDim.x + threadIdx.x;     if (idx < N/10)         c[idx*10] = a[idx*10] + b[idx*10]; } Assuming 100 CUDA blocks, each consisting of 100 threads, with a warp width of 16, and a page size of 4KB, what optimizations would be most helpful in reducing address translation overhead in this code?

[closed book question]  Between OpenMP and MPI, which of the programming models require directive for critical sessions ?

Wordsworth believed that, “All good poetry is ________.”

One of the Innocence poems states “thousands of [children], Dick, Joe, Ned, and Jack/were all of them lock’d up in coffins of black.” “Coffins of black” is a metaphor for

For the following passage by Burns, (1) name the poem and (2) briefly explain its significance.   O wad some Pow’r the giftie gie us To see oursels as others see us! It wad frae monie a blunder free us An’ foolish notion: What airs in dress an’ gait wad lea’e us, And ev’n Devotion!