Q1. I. Write a set of R-type instructions with multiple data dependencies in a pipeline architecture with necessary assumptions. Show the dependencies and then solve the data hazard with forwarding technique. Compute CPI without and with forwarding technique. Use reservation table for solution. II. Repeat the part I with R-type instruction depending on LW instruction.
Q: Consider the following two SimpleRISC code snippets. Data hazards have to be handled in hardware.…
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Q: Consider a pipeline that has 5 stages: (1) instruction fetch – 200 ps, (2) instruction decode - 100…
A: Answer is given below-
Q: Suppose on a non-pipelined single-processor machine, you have the following breakdown: alu…
A: (a)Non-pipelined single-processor machineAverage CPI = (0.25*2 + 0.3*10 + 0.15*4 + 0.3*1.5) = 4.55
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A: Given, Clock period for Machine 1 without forwarding =300 ps Clock period for Machine 2 without…
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A: Q1-a) With speculation; there are twelve Recorder Buffer (ROB) entries. Q1-b) without speculation
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A: SW R16, 12(R6) IF ID EX MEM WB LW R16, 8(R6) IF ID EX MEM WB BEQ R5, R4, Lb1…
Q: 3. In the common data bus implementation of out-of-order execution, when is the WAR hazard resolved?…
A: Actually, data bus is used to transfer the data from one location to another.
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A: The Answer is
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A:
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A: I will provide the solution in next step :-
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A: Given: Question 7: Suppose in a program there are 300 instructions, and 6 stages are required…
Q: Suppose we modify the pipeline so that it has only one memory (that handles both instructions and…
A:
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A: Answer: (B)
Q: In this exercise, we examine how data dependences aff ect execution in the basic 5-stage pipeline.…
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A:
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A: Answer:
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Q: Examine how pipelining affects the clock cycle time of the processor. Problems in this exercise…
A: Note: As per the guidelines we can only answer a maximum of three subparts. Please resubmit the…
Q: 2. We examine how pipelining affects the clock cycle time of the processor. Problems in this…
A: solution for the above question is solved in step 2:-
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- In the examination of how data dependences affect execution in the basic 5-stage pipeline, this exercise refers to the following sequence of instructions: or r1,r2,r3 or r2,r1,r4 or r1,r1,r2 Also, assume the following cycle times for each of the options related to forwarding: Assume there is no forwarding in this pipelined processor. Indicate hazards and add nop instructions to eliminate them. Assume there is full forwarding. Indicate hazards and add NOP instructions to eliminate them. What is the total execution time of this instruction sequence without forwarding and with full forwarding?Consider the following two SimpleRISC code snippets. Data hazards have to be handled in hardware. Let us consider two processors A and B: A supports only data interlocks, while B supports data interlocks and value forwarding. In each processor, in which cycle will the final instruction pass through the RW stage? Give the pipeline diagram in each case. (Assume the first instruction is in IF stage in cycle 1 in each case). (i) [1] st r3, 24[r1] [2] ld r4, 24[r1] (ii) [1] add r1, r1, r2 [2] sub r3, r1, r4 [3] add r4, r5, r617. Consider the following hypothetical instruction: SubMem R1, mem1, mem2 This instruction works as follows: \[ \mathrm{R} 1 \leftarrow \text { [mem1] - [mem2] } \] In a multi-cycle datapath implementation, this instruction will: a. Use the MDR twice b. Use the ALU once c. Use the "shift to left" unit twice d. None of the above Answer: B 18. Consider the following hypothetical instruction: Mems mem1, R1, mem2 This instruction works as follows: \[ \text { [mem1] } \leftarrow \mathrm{R} 1 \text { - [mem2] } \] One of the following is correct about this instruction: a. It will not need theBregister b. It will require priting into MDR twice c. It will require writing into the ALUout three times d. None of the above Answer: A 19. By comparing the hypothetical instructions given in Questions (17) and (18), if we run these instructions on the same processor, then one of the following is correct: a. Both instructions have the same CPI b. Mems executes faster than SubMem c. SubMem executes…
- In this exercise, we examine how pipelining aff ects the clock cycle time of the processor. Problems in this exercise assume that individual stages of the datapath have the following latencies: IF ID EX MEM WB 250ps 350ps 150ps 300ps 200ps Also, assume that instructions executed by the processor are broken down as follows: alu beq lw sw 45% 20% 20% 15% What is the clock cycle time in a pipelined and non-pipelined processor?What is the total latency of an LW instruction in a pipelined and non-pipelined processor?If we can split one stage of the pipelined datapath into two new stages, each with half the latency of the original stage, which stage would you split and what is the new clock cycle time of the processor?Assuming there are no stalls or hazards, what is the utilization of the data memory?Assuming there are no stalls or hazards, what is the utilization of the write-register port of the “Registers” unit?Instead of a single-cycle organization, we can use a…In this exercise, we examine how pipelining affects the clock cycle time of the processor. Problems in this exercise assume that individual stages of the datapath have the following latencies: IF ID EX MEM WB 270 ps 150 ps 240 ps 290 ps 180 ps Also, assume that instructions executed by the processor are broken down as follows: alu beq lw sw 40% 15% 35% 10% 3.0.1 What is the clock cycle time in a pipelined and non-pipelined processor? 3.0.2 Assuming there are no stalls or hazards, what is the utilization of the data memory? 3.0.3 Instead of a single-cycle organization, we can use a multi-cycle organization where each instruction takes multiple cycles but one instruction finishes before another instruction is fetched. In this organization, an instruction only goes through stages it actually needs (e.g. ST only takes 4 cycles because it does not need the WB stage). Compare clock cycle times and execution times with…In this exercise, we examine how data dependences aff ect execution in the basic 5-stage pipeline. Problems in this exercise refer to the following sequence of instructions:or r1,r2,r3or r2,r1,r4or r1,r1,r2Also, assume the following cycle times for each of the options related to forwarding: Without Forwarding With Full Forwarding With ALU-ALU Forwarding Only 250ps 300ps 290ps Indicate dependences and their type.Assume there is no forwarding in this pipelined processor. Indicate hazards and add nop instructions to eliminate them.Assume there is full forwarding. Indicate hazards and add NOP instructions to eliminate them.What is the total execution time of this instruction sequence without forwarding and with full forwarding? What is the speedup achieved by adding full forwarding to a pipeline that had no forwarding?Add nop instructions to this code to eliminate hazards if there is ALU-ALU forwarding only (no forwarding from the MEM to the EX stage).What is the total execution…
- Consider the fragment of MIPS assembly below: sd $s5, 12($s3) Id $s5, 8($s3) sub $s4, $s2, $s1 beqz $s4, label add $s2, $s0, $s1 sub $s2, $s6, $s1 Suppose we modify the pipeline so that it has only one memory (that handles both instructions and data). In this case, there will be a structural hazard every time a program needs to fetch an instruction during the same cycle in which another instruction accesses data. Draw a pipeline diagram to show were the code above will stall.In this exercise, we examine how resource hazards, control hazards, and Instruction Set Architecture (ISA) design can affect pipelined execution. Problems in this exercise refer to the following fragment of MIPS code: sw r16,12(r6)lw r16,8(r6)beq r5,r4,Label # Assume r5!=r4add r5,r1,r4slt r5,r15,r4 Assume that individual pipeline stages have the following latencies: IF ID EX MEM WB200ps 120ps 150ps 190ps 100ps 1.1, For this problem, assume that all branches are perfectly predicted (this eliminates all control hazards) and that no delay slots are used. If we only have one memory (for both instructions and data), there is a structural hazard every time we need to fetch an instruction in the same cycle in which another instruction accesses data. To guarantee forward progress, this hazard must always be resolved in favor of the instruction that accesses data. What is the total execution time of this instruction sequence in the 5-stage pipeline that only…Using the conceptual topics, develop sample codes (based on your own fictitious architectures, at least five lines each, with full justifications, using your K-number digits for variables, etc.) to compare the impacts of CISC-architecture, hardware-oriented cache coherence algorithms, and power aware CC-NUMA architectures on In-Order Issue In-Order Completion instruction issue policies of superscalar with degree-10 and superpipeline with degree-2 processors during international banking operations.
- Please give a step-by-step solution. Do not provide a wrong solution or copy-paste a solution from sites like Chegg. I need the right solution to the given question. Question: For the instructions below, remove the pipeline hazards using i) Stalling, ii) Stalling +Forwarding and iii) Stalling + Forwarding +Code Scheduling. Also, show the CPI for eachstage.LW $t0, 4($t1)SLL $t0, $t0, 2SW $t1, 4($t3)ADDI $t1, $t0, 2SLL $s1, $s1, 4LW $t1, 4($t0)If the execution time of pipeline instruction execution is not balanced, what inefficiency must be introduced to allow the piplelined execution to occur? Describe this inefficiency.In this exercise, we examine how resource hazards, control hazards, and Instruction Set Architecture (ISA) design can affect pipelined execution. Problems in this exercise refer to the following fragment of MIPS code: sw r16,12(r6) lw r16,8(r6) beq r5,r4,Label # Assume r5!=r4 add r5,r1,r4 Assume that individual pipeline stages have the following latencies: IF ID EX MEM WB 200ps 120ps 150ps 190ps 100ps a. For this problem, assume that all branches are perfectly predicted (this eliminates all control hazards) and that no delay slots are used. If we only have one memory (for both instructions and data), there is a structural hazard every time we need to fetch an instruction in the same cycle in which another instruction accesses data. To guarantee forward progress, this hazard must always be resolved in favor of the instruction that accesses data. What is the total execution time of this instruction sequence in the 5-stage pipeline that…