How long will the code snippet take to execute on a single-cycle processor with a clock frequency of 1 GHz? 46 ns How long will the code snippet take to execute on a 5-stage pipelined processor with a clock frequency of 5 GHz? Assume the processor has no data forwarding paths and no branch prediction, and that the branch target can be known at the beginning of the memory stage. How long will the code snippet take to execute on a 5-stage pipelined processor with a clock frequency of 5 GHz? Assume the processor has all possible data forwarding paths, but no branch prediction, and that the branch target can be known at the beginning of the memory stage.

How long will the code snippet take to execute on a single-cycle processor with a clock frequency of 1 GHz? 46 ns How long will the code snippet take to execute on a 5-stage pipelined processor with a clock frequency of 5 GHz? Assume the processor has no data forwarding paths and no branch prediction, and that the branch target can be known at the beginning of the memory stage. How long will the code snippet take to execute on a 5-stage pipelined processor with a clock frequency of 5 GHz? Assume the processor has all possible data forwarding paths, but no branch prediction, and that the branch target can be known at the beginning of the memory stage.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 10RQ: How does pipelining improve CPU efficiency? What’s the potential effect on pipelining’s efficiency...

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If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the fetch cycle is 40% of the processor cycle time, what memory access speed is required to implement load operations with zero wait states and load operations with two wait states?
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4.16.1 [5] <§4.5> What is the clock cycle time in a pipelined and non-pipelined processor? 4.16.2 [10] <§4.5> What is the total latency of an LDUR instruction in a pipelined and non-pipelined processor? 4.16.3 [10] <§4.5> 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? 4.16.4 [10] <§4.5> Assuming there are no stalls or hazards, what is the utilization of the data memory? 4.16.5 [10] <§4.5> Assuming there are no stalls or hazards, what is the utilizationof the write-register port of the “Registers” unit?
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On a uniprocessor, portion A of program P consumes 24 seconds, while portion B consumes 822 seconds. On a parallel computer, moderately serial portion A speeds up 4 times, while perfectly parallel portion B speeds up by the number of processors. 1- What is the speedup of program P on 1,024 processors? _______ times 2- How many processors are required to achieve at least half the theoretical maximum possible speedup on P?
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