Final answer:
To find the total execution time, divide the execution time on a single processor by the number of processors. The speedup is the ratio of the execution time on a single processor to the execution time on multiple processors.
Step-by-step explanation:
In order to find the total execution time for this program on different processors, you would need to know the execution time on a single processor and the speedup factor for each additional processor.
Let's say the execution time on a single processor is 100 seconds.
On 2 processors, the total execution time would be 100/2 = 50 seconds, resulting in a speedup of 2.
On 4 processors, the total execution time would be 100/4 = 25 seconds, resulting in a speedup of 4.
On 8 processors, the total execution time would be 100/8 = 12.5 seconds, resulting in a speedup of 8.