bug 1244: maxloc talk, update intro and summary slide
authorLuke Kenneth Casson Leighton <lkcl@lkcl.net>
Mon, 12 Feb 2024 17:44:45 +0000 (17:44 +0000)
committerLuke Kenneth Casson Leighton <lkcl@lkcl.net>
Mon, 12 Feb 2024 17:44:45 +0000 (17:44 +0000)
conferences/fosdem2024/fosdem2024_ddffirst/fosdem2024_ddffirst.tex

index de1d19eb076dd3c5295fc723a8433986ce62e9ba..30c79c5f91fa402e4fa499d96a4ef33ac4f11952 100644 (file)
 
 \frame{
    \begin{center}
-    \huge{The Libre-SOC Hybrid 3D CPU}\\
-    \vspace{32pt}
-    \Large{Data-Dependent-Fail-First}\\
+    \huge{Libre-SOC Simple-V Specification \\
+                       Advanced features}\\
+    \vspace{24pt}
+    \Large{Data-Dependent Fail-First}\\
 
     \vspace{24pt}
     \Large{FOSDEM2024}\\
     \vspace{16pt}
-    \large{Sponsored by NLnet's PET Programme}\\
+    \large{Funded by NLnet NGI-ASSURE \\
+       EU grant agreement No 957073}\\
     \vspace{6pt}
     \large{\today}
   \end{center}
 }
 
-
-
 \begin{frame}[fragile]
 \frametitle{Simple-V CMPI in a nutshell}
 
@@ -225,61 +225,42 @@ for (i = 0; i < VL; i++)
 \frame{\frametitle{Summary}
 
  \begin{itemize}
-   \item Goal is to create a mass-volume low-power embedded SoC suitable
-         for use in netbooks, chromebooks, tablets, smartphones, IoT SBCs.
-   \item No way we could implement a project of this magnitude without
-         nmigen (being able to use python OO to  HDL)
-   \item Collaboration with OpenPOWER Foundation and Members absolutely
-         essential. No short-cuts.  Standards to be developed and ratified
-         so that everyone benefits.
-   \item Riding the wave of huge stability of OpenPOWER ecosystem
-   \item Greatly simplified open 3D and Video drivers reduces product
-         development costs for customers
-   \item It also happens to be fascinating, deeply rewarding technically
-         challenging, and funded by NLnet
-
+   \item SIMD fundamentally assumes element independence.
+   \item No provision in SIMD ISAs or Architectures for
+         inter-element inter-dependence, let alone sequential
+         inter-dependence.
+   \item Simple-V adds features such as Data-Dependent
+         Fail-First as \textit{general concepts},
+         exploiting Condition Registers (Vectorised)
+   \item Hardware Parallelism is \textit{still possible}
+         by exploiting the standard capabilities of
+         Speculative Execution: produce results, hold
+         off writing, post-analyse and cancel the results
+         that should not be written. Uses \textit{existing}
+         standard OoO Micro-architecture
+   \item Huge simplification of algorithms, huge "compactification"
+         just like Zilog Z80 and Intel 8086, yet still parallel
+   \item compact deep-expressive assembler brings CISC
+         capability but RISC-RISC (Prefix-Suffix). SIMD remains
+         at the \textit{back-end in hardware} where it belongs.
+         Not exposed at the programmer.
   \end{itemize}
 }
 
-\frame{\frametitle{How can you help?}
-
-    \vspace{5pt}
-
-    \begin{itemize}
-        \item Start here! https://libre-soc.org \\
-        Mailing lists https://lists.libre-soc.org \\
-        IRC Freenode libre-soc \\
-        etc. etc. (it's a Libre project, go figure) \\
-        \vspace{3pt}
-        \item Can I get paid? Yes!  NLnet funded\\
-        See https://libre-soc.org/nlnet/\#faq \\
-        \vspace{3pt}
-        \item Also profit-sharing in any commercial ventures \\
-        \vspace{3pt}
-        \item How many opportunities to develop Libre SoCs exist,\\
-        and actually get paid for it?
-        \vspace{3pt}
-        \item I'm not a developer, how can I help?\\
-        - Plenty of research needed, artwork, website \\
-        - Help find customers and OEMs willing to commit (LOI)
-    \end{itemize}
-}
-
-
-
 \frame{
   \begin{center}
     {\Huge The end\vspace{12pt}\\
-           Thank you\vspace{12pt}\\
-           Questions?\vspace{12pt}
+           Thank you\vspace{12pt}
     }
   \end{center}
 
   \begin{itemize}
     \item Discussion: http://lists.libre-soc.org
-    \item Freenode IRC \#libre-soc
+    \item OFTC.net IRC \#libre-soc
     \item http://libre-soc.org/
-    \item http://nlnet.nl/PET
+       \item https://nlnet.nl/project/Libre-SOC-OpenPOWER-ISA
+\item https://bugs.libre-soc.org/show\_bug.cgi?id=676
+\item https://libre-soc.org/openpower/sv/cookbook/fortran\_maxloc
     \item https://libre-soc.org/nlnet/\#faq
   \end{itemize}
 }