Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Consider the following loop, which calculates Y,- aX, + bY,. Assume the pipeline latencies given below Latency Instruction producing result FP ALU op FP ALU
Consider the following loop, which calculates Y,- aX, + bY,. Assume the pipeline latencies given below Latency Instruction producing result FP ALU op FP ALU op Load double Load double Instruction using result (clock cycles) 3 2 Another FP ALU op Store double FP ALU op Store double 0 loop: L.D F0,0 (R1) load Xi] F4,0(R2 ) F4,F4,F6 ;load Y[i] ;b*Y[i] L.D MUL.D S.D 0 (R2),FO ;store Y[i] DSUBUl R1, R1, #8 ;decrement X index DSUBUl R2, R2, #8 ;decrement Y index BNE R1, R3, loop ;stopping address in R3 Assume a single-issue pipeline. (Both the integer and .D floating point instructions are in the same pipeline.) Unroll the loop as many times as necessary to schedule it without any delays. What is the execution time per element? Consider the following loop, which calculates Y,- aX, + bY,. Assume the pipeline latencies given below Latency Instruction producing result FP ALU op FP ALU op Load double Load double Instruction using result (clock cycles) 3 2 Another FP ALU op Store double FP ALU op Store double 0 loop: L.D F0,0 (R1) load Xi] F4,0(R2 ) F4,F4,F6 ;load Y[i] ;b*Y[i] L.D MUL.D S.D 0 (R2),FO ;store Y[i] DSUBUl R1, R1, #8 ;decrement X index DSUBUl R2, R2, #8 ;decrement Y index BNE R1, R3, loop ;stopping address in R3 Assume a single-issue pipeline. (Both the integer and .D floating point instructions are in the same pipeline.) Unroll the loop as many times as necessary to schedule it without any delays. What is the execution time per element
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started