Boolean Algebra • High-level language program (in C) swap (int v[], int k) { int temp = v[k]; v[k] = v[k+1]; v[k+1] = temp; } • Assembly language program (for MIPS) swap: sll $2, $5, 2 add $2, $4,$2 lw $15, 0($2) lw $16, 4($2) sw $16, 0($2) sw $15, 4($2) jr $31 • Machine […]
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How to Start a Program Complier, Assembler, Linker, and Loader Mc OMP273 1 • Compiler • Assembler • Linker • Loader Outline Mc OMP273 2 Steps to Starting a Program COMPILER ASSEMBLER LINKER LOADER Memory foo.c C Program source code foo.s Assembly program foo.o Object (machine language module) lib.o Library (similar to object file) a.out
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Performance Analysis of Parallel Programs Presented by Shuaiwen Leon Song USYD Future System Architecture Lab (FSA) https://shuaiwen-leon-song.github.io/ Slides are modified based on similar classes offered by UC Berkeley and ’s cs0330 at Brown 1 Write a 2d Array 2 Write a 2d array via single pointer 3 Using an array of pointers 4 Using pointer
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Comprehensive OpenMP Shuaiwen SOFT 3410 Week 10 Basics • OpenMP is readily available in the GCC compiler; to use it, we just need to add the right #pragma omp directives and compile and link with the command line switch -fopenmp. • How do you normally check how many CPU cores you have (in other words,
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C Crash Course (II): C Basics for System Programming Presented by Dr. Shuaiwen Leon Song USYD Future System Architecture Lab (FSA) https://shuaiwen-leon-song.github.io/ Warmup Contents FACULTY OF ENGINEERING What is the printout of this code? Segmentation fault (core dump) ! Core Dump/Segmentation Fault Core Dump/Segmentation fault is a specific kind of error caused by accessing memory
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More Concurrency Exercises and OpenMP Shuaiwen Concurrency and Synchronization Exercise 2 How many lines of output will it produce? Answer: 7 Q1(fork) 3 Q2 (sempahores) Consider the following program using semaphores . Which of the following execution order of sem_wait and sem_post are possible (W represent sem_wait, P represent sem_post)? (A) WPWWWP (B) WWPPWW (C)
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Binary Representations Integers The Big Picture • High-level language program (in C) swap (int v[], int k) { int temp = v[k]; v[k] = v[k+1]; v[k+1] = temp; } • Assembly language program (for MIPS) swap: sll $2, $5, 2 add $2, $4,$2 C compiler lw $15, lw $16, sw $16, sw $15, jr $31
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C Crash Course (I): C Basics for System Programming Presented by Dr. Shuaiwen Leon Song USYD Future System Architecture Lab (FSA) https://shuaiwen-leon-song.github.io/ COMMONWEALTH OF AUSTRALIA Copyright Regulations 1969 WARNING This material has been reproduced and communicated to you by or on behalf of the University of Sydney pursuant to Part VB of the Copyright Act
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Binary Representations Real Numbers • High-level language program (in C) swap (int v[], int k) { int temp = v[k]; v[k] = v[k+1]; v[k+1] = temp; • Assembly language program (for MIPS) swap: sll $2, $5, 2 add $2, $4,$2 C compiler The Big Picture } lw $15, lw $16, sw $16, sw $15, jr
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COMP273 McGill 1 Binary Representations + Introduction to MIPS • High-level language program (in C) swap (int v[], int k) { int temp = v[k]; v[k] = v[k+1]; v[k+1] = temp; } • Assembly language program (for MIPS) swap: sll $2, $5, 2 add $2, $4,$2 C compiler The Big Picture lw $15, lw $16,
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