homework 1 - AdvancedComputerArchitectureCPE749

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Advanced Computer Architecture - CPE 749 Mohammed K. Ali Shatnawi – 20093171003 Homework # 1 1.  SISD, SIMD, MISD and MIMD SISD :  Single Instruction, Single Data (SISD) refers to an Instruction Set Architecture in which a  single processor (one CPU) executes exactly one instruction stream at a time and also fetches  or stores one item of data at a time to operate on data stored in a single memory unit. SISD can  have concurrent processing characteristics. Instruction fetching and pipelined execution of  instructions are common examples found in most modern SISD computer. SIMD:   Single Instruction, Multiple Data (SIMD) is an Instruction Set Architecture that have a  single control unit (CU) and more than one processing element (PE) that operates. SIMD  instructions are widely used to process 3D graphics, although modern graphics cards with  embedded SIMD have largely taken over this task from the CPU. Some systems also include  permute functions that re-pack elements inside vectors, making them particularly useful for data  processing and compression. They are also used in cryptography. The trend of general-purpose  computing on GPUs (GPGPU) may lead to wider use of SIMD in the future. MISD:   Multiple Instruction, Single Data (MISD) is an Instruction Set Architecture for parallel  computing where many functional units perform different operations by executing different  intructions on the same data set. This type of architecture is common mainly in the fault-tolerant 
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This note was uploaded on 12/03/2009 for the course COMPUTER E 770 taught by Professor Dr.mohammednizari during the Spring '09 term at Jordan University of Science & Tech.

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homework 1 - AdvancedComputerArchitectureCPE749

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