Question

using the priority list t5, t9, t7, t1, t6, t3, t10, t2, t8, t4, schedule the project below with two processors. select the correct schedule.

Explanation:

Step1: Initialize processors

Let Processor 1 and Processor 2 be idle. Start with the first task in the priority list $T_5$. Since it has no predecessors, assign it to Processor 1. Processor 1 is now busy for 5 time - units.

Step2: Consider next task in list

The next task is $T_9$. It has $T_5$ as a predecessor. Since $T_5$ is being processed by Processor 1, and Processor 2 is idle, we check the next task $T_7$. $T_7$ has $T_3$ as a predecessor, so we move on.

Step3: Check $T_1$

$T_1$ has no predecessors. Since Processor 2 is idle, assign $T_1$ to Processor 2. Processor 2 is now busy for 3 time - units.

Step4: Consider $T_6$

$T_6$ has $T_2$ as a predecessor, so we move on.

Step5: Check $T_3$

$T_3$ has no predecessors. When Processor 1 finishes $T_5$ (at time $t = 5$), assign $T_3$ to Processor 1. Processor 1 is now busy for 8 more time - units.

Step6: Consider $T_{10}$

$T_{10}$ has predecessors that are not yet completed, so we move on.

Step7: Check $T_2$

When Processor 2 finishes $T_1$ (at time $t=3 + 0$), assign $T_2$ to Processor 2. Processor 2 is now busy for 12 time - units.

Step8: Consider $T_8$

$T_8$ has predecessors that are not yet completed, so we wait.

Step9: As tasks complete

As tasks like $T_3$ on Processor 1 and $T_2$ on Processor 2 complete, we continue to assign tasks from the priority list based on the availability of processors and completion of predecessors.

(Note: A full - detailed schedule table would be needed for a complete answer. But the general process is as above. Without the list of options, we can't give a final specific answer. However, the steps to create the schedule are shown.)

Since no options are provided, we can't give a final answer in the form of selecting from options. But the above steps show how to create the schedule. If you provide the options, we can further determine the correct one.

Answer:

Step1: Initialize processors

Let Processor 1 and Processor 2 be idle. Start with the first task in the priority list $T_5$. Since it has no predecessors, assign it to Processor 1. Processor 1 is now busy for 5 time - units.

Step2: Consider next task in list

The next task is $T_9$. It has $T_5$ as a predecessor. Since $T_5$ is being processed by Processor 1, and Processor 2 is idle, we check the next task $T_7$. $T_7$ has $T_3$ as a predecessor, so we move on.

Step3: Check $T_1$

$T_1$ has no predecessors. Since Processor 2 is idle, assign $T_1$ to Processor 2. Processor 2 is now busy for 3 time - units.

Step4: Consider $T_6$

$T_6$ has $T_2$ as a predecessor, so we move on.

Step5: Check $T_3$

$T_3$ has no predecessors. When Processor 1 finishes $T_5$ (at time $t = 5$), assign $T_3$ to Processor 1. Processor 1 is now busy for 8 more time - units.

Step6: Consider $T_{10}$

$T_{10}$ has predecessors that are not yet completed, so we move on.

Step7: Check $T_2$

When Processor 2 finishes $T_1$ (at time $t=3 + 0$), assign $T_2$ to Processor 2. Processor 2 is now busy for 12 time - units.

Step8: Consider $T_8$

$T_8$ has predecessors that are not yet completed, so we wait.

Step9: As tasks complete

As tasks like $T_3$ on Processor 1 and $T_2$ on Processor 2 complete, we continue to assign tasks from the priority list based on the availability of processors and completion of predecessors.

(Note: A full - detailed schedule table would be needed for a complete answer. But the general process is as above. Without the list of options, we can't give a final specific answer. However, the steps to create the schedule are shown.)

Since no options are provided, we can't give a final answer in the form of selecting from options. But the above steps show how to create the schedule. If you provide the options, we can further determine the correct one.