Answered: On a system with eight cores,…

On a system with eight cores, multitasking might be difficult due to the fact that there is only one memory channel. The next question that arises is, "What can we do to fix it?"

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 2PE: If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the...

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Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.

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On a system with eight cores, multitasking might be difficult due to the fact that there is only one memory channel. The next question that arises is, "What can we do to fix it?"

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Suppose you have a RISC machine with a 2 GHz clock (e, the clock ticks 2 billion times per second). This particular computer uses an instruction cache, a data cache, an operand fetch unit, and an operand store unit. The instruction set includes simple instructions with the following timings: SET reg, inned; 2 clock cycles LOAD reg. ; 3 clock cycles ADD reg, reg ; 2 clock cycles ADD reg, inned; 1 clock cycles LOOP LabelName; 2 clock cycles Assume that the following code fragment is used to sum the element of a numeric array. initialize sum SET regi, SET reg2, MAX SIZE SET reg), glist ProcessArray: initialize loop counter initialize array pointer LOAD reg4, [reg] regi, reg reg), 4 ADD ADO LOOP ProcessArray fetch current List element podd current List element move array pointer to next element pouto-decrement reg2, jump to more if reg20 If the initialization code has already executed (i.e. the SET instructions have already finished execution) how many array elements can be processed in…