Problem # $4$: Assume we are running a program where threads perform four arithmetic instructions $($one cycle per instruction$),$ followed by memory load $($with $16$ cycles of memory latency$).[4$pts$]$

$1-$What is the utilization of the single$-$threaded core? $[2$pts$]$

$2-$ How many threads are needed to achieve $75\%$ utilization? $[2$pts$]$

Problem ## $5$; Mention one of the difficulties$/$challenges$/$limitations that prevent the following from being achieved. $[6$pts$]$

$1-$Developing computer software targeting throughput$-$optimized systems. $[1$pt$]$

$2-$ Taking full advantage of SIMD processing resources. $[$Ipt$]$

Ahalea Applied Laherniry

$3.-$ Achieving the supencalar processor's maximum performance. $[$Ipt$]$

$4-$ Improving $($increasing$)$ the single$-$core CPU clock frequency continuously. $[$Ipt$]$

$5-$ Writing parallel programs. $[$Ipt$]$

$6-$ Achieving the maximum speedup of the parallel computation $($processing$).-[$Ipt$]$