From f8f6d20930579aa03007977527418f00176dc214 Mon Sep 17 00:00:00 2001 From: Luke Kenneth Casson Leighton Date: Sat, 19 May 2018 13:06:31 +0100 Subject: [PATCH] add simple_v workshop proposal --- simple_v_extension/simple_v_chennai_2018.tex | 98 ++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 simple_v_extension/simple_v_chennai_2018.tex diff --git a/simple_v_extension/simple_v_chennai_2018.tex b/simple_v_extension/simple_v_chennai_2018.tex new file mode 100644 index 000000000..4519b602d --- /dev/null +++ b/simple_v_extension/simple_v_chennai_2018.tex @@ -0,0 +1,98 @@ + +\documentclass[slidestop]{beamer} +\usepackage{beamerthemesplit} +\usepackage{graphics} +\usepackage{pstricks} + + +\title{Simple-V RISC-V Extension for Vectorisation and SIMD} +\author{Luke Kenneth Casson Leighton} + + +\begin{document} + +\frame{ + \begin{center} + \huge{Simple-V RISC-V Extension for Vectors and SIMD}\\ + \vspace{48pt} + \Large{Flexible Vectorisation}\\ + \Large{Chennai 9th Workshop}\\ + \vspace{24pt} + \large{\today} + \end{center} +} + +\frame{\frametitle{Why another Vector Extension?} + + \begin{itemize} + \item RVV very heavy-duty (excellent for supercomputing)\vspace{10pt} + \item Simple-V abstracts parallelism (based on best of RVV)\vspace{10pt} + \item Graded levels: hardware or software-emulation\vspace{10pt} + \item Even Compressed instructions become vectorised\vspace{10pt} + \end{itemize} + What Simple-V is not:\vspace{12pt} + \begin{itemize} + \item A full supercomputer-level Vector Proposal\vspace{12pt} + \item A replacement for RVV (designed to be augmented)\vspace{12pt} + \end{itemize} +} + +\frame{\frametitle{Quick refresher on SIMD} + + \begin{itemize} + \item SIMD very easy to implement\vspace{10pt} + \item Parallelism is in the ALU\vspace{10pt} + \item Negligeable impact for rest of core\vspace{10pt} + \end{itemize} + Where SIMD Goes Wrong:\vspace{12pt} + \begin{itemize} + \item See "Why SIMD considered harmful"\vspace{12pt} + \item (Corner-cases alone are extremely complex)\vspace{12pt} + \item O($N^{6}$) ISA proliferation\vspace{12pt} + \end{itemize} +} + + + +\frame{\frametitle{How is Parallelism abstracted?} + + \begin{itemize} + \item Simple-V abstracts parallelism (based on best of RVV)\vspace{10pt} + \item Graded levels: hardware or software-emulation\vspace{10pt} + \item Even Compressed instructions become vectorised\vspace{10pt} + \end{itemize} + What Simple-V is not:\vspace{12pt} + \begin{itemize} + \item A full supercomputer-level Vector Proposal\vspace{12pt} + \item A replacement for RVV (designed to be augmented)\vspace{12pt} + \end{itemize} +} + +\frame{\frametitle{Including a plot} + \begin{center} +% \includegraphics[height=2in]{dental.ps}\\ + {\bf \red Dental trajectories for 27 children:} + \end{center} +} + +\frame{\frametitle{Creating .pdf slides in WinEdt} + + \begin{itemize} + \item LaTeX [Shift-Control-L]\vspace{12pt} + \item dvi2pdf [click the button]\vspace{24pt} + \end{itemize} + To print 4 slides per page in acrobat click\vspace{12pt} + \begin{itemize} + \item File/print/properties\vspace{12pt} + \item Change ``pages per sheet'' to 4\vspace{12pt} + \end{itemize} +} + +\frame{ + \begin{center} + {\Huge \red The end} + \end{center} +} + + +\end{document} -- 2.30.2