A systolic array, which is the kind of array that a MISD machine is an example of, is one type of array. A "wavefront" is another name for a networked pipeline of data processing units, which is exactly what a systolic array is. Since execution begins whenever fresh data is received, none of these components need to make use of a program counter in order to function properly. Every component in a timed systolic array performs computing in "lock-step," which means that each component finishes alternating phases of computation and communication within the span of a single clock cycle.

A systolic array, which is the kind of array that a MISD machine is an example of, is one type of array. A "wavefront" is another name for a networked pipeline of data processing units, which is exactly what a systolic array is. Since execution begins whenever fresh data is received, none of these components need to make use of a program counter in order to function properly. Every component in a timed systolic array performs computing in "lock-step," which means that each component finishes alternating phases of computation and communication within the span of a single clock cycle.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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For instance, a systolic array is a kind of array that may be thought of as a MISD device. Systolic arrays are networks of data processing nodes organized in a wavelike fashion, thus the name. None of these parts need the employment of a program counter since execution is started by the arrival of new data. In a timed systolic array, all of the nodes calculate and communicate synchronously, or "in lock-step," with one another.
In general terms, CPUs are able to manipulate one or two pieces of data at a time. For instance, most CPUs have an instruction that essentially says "add A to B and put the result in C". The data for A, B and C could be—in theory at least—encoded directly into the instruction. Vector processors take this concept one step further. Instead of pipelining just the instructions, they also pipeline the data itself. a) How will you describe a vector processor? b) Instruction pipelining is an efficient way of decoding instructions. How does instruction pipelining reduce the amount of computing time as compared with traditional CPUs?
A MISD machine is an example of a systolic array, a kind of array. Data processing units are organized into a "wavefront" in a systolic array. All of these components do not need the use of a program counter since execution is initiated when new data is received. Lock-step computation is achieved in a clocked-systolic array, where each unit completes its alternating calculation and communication phases in the same clock cycle.
In this context, a systolic array, which is a kind of array, represents a machine with MISD. A systolic array is a collection of data processing nodes laid out in a wavelike fashion. Since execution is kicked off by the arrival of fresh data, there is no need for a program counter in any of these components. "Lock-step" computing occurs in clocked systolic arrays because each node finishes its calculation and communication phases on the same clock cycle.
MISD machines are systolic arrays. Systolic arrays are "wavefronts" or pipeline networks of data processing parts. These parts are self-contained and don't need program counters since data initiates execution. In systolic arrays with synchronized clocks, the compute and communication phases are alternated by each CPU to calculate in "lock-step?
Orthogonality is the property of an instruction set design to have a "backup" instruction for every other instruction that accomplishes the same purpose as the original instruction. You are free to enlighten me as to whether or not it is true.
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…
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…
An example of a MISD device is a systolic array, a subset of arrays. Systolic arrays are networks of data processing nodes organized in a wavelike fashion, thus the name. None of these parts need the employment of a program counter since execution is started by the arrival of new data. In a timed systolic array, all of the nodes calculate and communicate in unison, or "lock-step," inside a single clock cycle.
Orthogonality means that an instruction set has a "backup" instruction that can be used instead of any other instruction that does the same thing. It's up to you to prove or disprove what I think.
A systolic array, which is a kind of array, is an example of a MISD machine. A systolic array is a pipeline network or "wavefront" of data processing units structured as a network. Because execution is triggered by the reception of fresh data, none of these components need the usage of a program counter. Each unit in a clocked systolic array computes in "lock-step," with each unit completing alternate calculation and communication phases in a single clock cycle.
Systolic arrays, a kind of array, include MISD machines. A networked pipeline of data processing equipment is a systolic array. No programme counter is needed since execution is started by fresh data. Each timed systolic array unit computes and communicates in unison, isn't that correct?