1). An Integer Programming problem in which all variables must be integer is being solved The optimal tableau for the LP relaxation is given below. A cut to be added next is: z x1 x2 x3 x4 x5 x6 RHS 1 0 1.5 3 0 0 0 6.25 0 1 30 0 0 0 2 10 0 0 1.3 -0.6 0 1 2.9 1.4 0 0 1.4 -5.2 1 0 -1.3 5 (a). What are the two branches that should be added next, if solving the above problem using the branch and bound method. method. (b). What is a cut that should be added next, if solving the above problem using the cutting plane method.

If an improvement creates no significant change in a product’s performance, then it is a(n) ? a0 design improvement. (there are no answer choices)

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?

Instruction active describing list features which statements accurately describe the features of word that are used to create lists? check all that apply. the tab key can be used to create a sublist. the enter key can be used to add an item to a list. the numbering feature allows for the use of letters in a list. the numbering feature can change the numbers to bullets in a list. the multilevel list feature provides options for different levels in a list.