80 lines
4.5 KiB
TeX
80 lines
4.5 KiB
TeX
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\documentclass[unicode,11pt,a4paper,oneside,numbers=endperiod,openany]{scrartcl}
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\input{assignment.sty}
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\usepackage{fancyvrb}
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\begin{document}
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\setassignment
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\setduedate{12.10.2022 (midnight)}
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\serieheader{High-Performance Computing Lab}{2022}{Student: Claudio
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Maggioni}{Discussed with: ---}{Solution for Project 1}{}
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\newline
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\assignmentpolicy
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In this project you will practice memory access optimization, performance-oriented programming, and OpenMP parallelizaton
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on the ICS Cluster .
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\section{Explaining Memory Hierarchies \punkte{25}}
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By identifying the memory hierarchy parameters through \texttt{likwid-topology}
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for the cache topology and \texttt{free -g} for the amount of primary memory I
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find the following values:
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\begin{center}
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\begin{tabular}{llll}
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Main memory & 62 GB \\
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L3 cache & 25 MB per socket \\
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L2 cache & 256 kB per core \\
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L1 cache & 32 kB per core
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\end{tabular}
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\end{center}
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All values are reported using base 2 IEC byte units. The cluster has 2 sockets
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and a total of 20 cores (10 per socket). The cache topology diagram reported by
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\texttt{likwid-topology -g} is the following:
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\pagebreak[4]
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% https://tex.stackexchange.com/a/171818
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\begin{Verbatim}[fontsize=\tiny]
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Socket 0:
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+---------------------------------------------------------------------------------------------------------------+
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 0 | | 1 | | 2 | | 3 | | 4 | | 5 | | 6 | | 7 | | 8 | | 9 | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +-----------------------------------------------------------------------------------------------------------+ |
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| | 25 MB | |
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| +-----------------------------------------------------------------------------------------------------------+ |
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+---------------------------------------------------------------------------------------------------------------+
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Socket 1:
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+---------------------------------------------------------------------------------------------------------------+
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 10 | | 11 | | 12 | | 13 | | 14 | | 15 | | 16 | | 17 | | 18 | | 19 | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | | 32 kB | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | |
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| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
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| +-----------------------------------------------------------------------------------------------------------+ |
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| | 25 MB | |
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| +-----------------------------------------------------------------------------------------------------------+ |
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+---------------------------------------------------------------------------------------------------------------+
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\end{Verbatim}
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\section{Optimize Square Matrix-Matrix Multiplication \punkte{60}}
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\section{Quality of the Report \punkte{15}}
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\end{document}
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