quency. Assume that, as the program is parallelized to run over multiple cores, the number of arithmetic and load/store instructions per processor is divided by 0.7 x p (where p is the number of processors) but the number of branch instructions per processor remains the same. Find the total execution time for this program on 1, 2, 4, and 8 processors, and sh
quency. Assume that, as the program is parallelized to run over multiple cores, the number of arithmetic and load/store instructions per processor is divided by 0.7 x p (where p is the number of processors) but the number of branch instructions per processor remains the same. Find the total execution time for this program on 1, 2, 4, and 8 processors, and sh
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
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Assume for arithmetic, load/store, and branch instructions, a processor has CPIs of 1, 12, and 5, respectively. Also assume that on a single processor a program requires the execution of 2.56E9 arithmetic instructions, 1.28E9 load/store instructions, and 256 million branch instructions. Assume that each processor has a 2 GHz clock frequency.
Assume that, as the program is parallelized to run over multiple cores, the number of arithmetic and load/store instructions per processor is divided by 0.7 x p (where p is the number of processors) but the number of branch instructions per processor remains the same.
Find the total execution time for this program on 1, 2, 4, and 8 processors, and show the relative speedup of the 2, 4, and 8 processor result relative to the single processor result.
If the CPI of the arithmetic instructions was doubled, what would the impact be on the execution time of the program on 1, 2, 4, or 8 processors?
To what should the CPI of load/store instructions be reduced in order for a single processor to match the performance of four processors using the original CPI values?
![5. Assume for arithmetic, load/store, and branch
instructions, a processor has CPIs of 1, 12, and
5, respectively. Also assume that on a single
processor a program requires the execution of
2.56E9 arithmetic instructions, 1.28E9
load/store instructions, and 256 million branch
instructions. Assume that each processor has a
2 GHz clock frequency.
Assume that, as the program is parallelized to
run over multiple cores, the number of
arithmetic and load/store instructions per
processor is divided by 0.7 x p (where p is the
number of processors) but the number of
branch instructions per processor remains the
same.
Find the total execution time for this program
on 1, 2, 4, and 8 processors, and show the
relative speedup of the 2, 4, and 8 processor
result relative to the single processor result.
If the CPI of the arithmetic instructions was
doubled, what would the impact be on the
execution time of the program on 1, 2, 4, or 8
processors?
To what should the CPI of load/store
instructions be reduced in order for a single
processor to match the performance of four
processors using the original CPI values?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd7bc7054-8190-4047-9a28-470c209d6cdf%2F8d3062ee-4715-43c8-ab2c-3a862b593a65%2Fdio5o6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. Assume for arithmetic, load/store, and branch
instructions, a processor has CPIs of 1, 12, and
5, respectively. Also assume that on a single
processor a program requires the execution of
2.56E9 arithmetic instructions, 1.28E9
load/store instructions, and 256 million branch
instructions. Assume that each processor has a
2 GHz clock frequency.
Assume that, as the program is parallelized to
run over multiple cores, the number of
arithmetic and load/store instructions per
processor is divided by 0.7 x p (where p is the
number of processors) but the number of
branch instructions per processor remains the
same.
Find the total execution time for this program
on 1, 2, 4, and 8 processors, and show the
relative speedup of the 2, 4, and 8 processor
result relative to the single processor result.
If the CPI of the arithmetic instructions was
doubled, what would the impact be on the
execution time of the program on 1, 2, 4, or 8
processors?
To what should the CPI of load/store
instructions be reduced in order for a single
processor to match the performance of four
processors using the original CPI values?
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