source: anr/section-4.4.tex @ 40

Last change on this file since 40 was 40, checked in by coach, 14 years ago

Paul task 4 to 6 and section 4.4

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1\begin{figure}\leavevmode\center
2\definecolor{gtcBoxHeavy}{rgb}{0.10,0.10,0.90}
3\definecolor{gtcBoxLight}{rgb}{0.9,0.90,0.99}
4\definecolor{gtcTaskBG0} {rgb}{0.99,0.90,0.7}
5\definecolor{gtcTaskBG1} {rgb}{0.90,0.99,0.7}
6\definecolor{gtcMilestone}{rgb}{0.9,0.4,0.4}
7\immediate\write\ganttdata{ML=6 ML=12 ML=18 ML=24}
8\def\ganttlabelstyle#1{\begin{small}#1\end{small}}
9\def\gantttitlestyle#1{\begin{scriptsize}\textit{#1}\end{scriptsize}}
10\hspace*{-.6cm}
11\input{gantt.tex}
12\caption{\label{gantt}Gantt diagram of delivrables}
13\end{figure}
14
15The figure~\ref{gantt} presents the Gantt diagram of the project.
16Before the final release (T0+36), there are 4 milestones (red lines on the figure) at
17$T0+6$, $T0+12$, $T0+18$ and $T0+24$  that are rendez-vous points of the precedent
18delivrables.
19\begin{description}
20\item[Milestone 1 ($T0+6$)] Specification of COACH inputs, of the \xcoach format and of
21    demonstatrors as a reference software.
22\item[Milestone 2 ($T0+12$)] The first COACH release. At this step the demonstrators are
23    written in the COACH input format. This COACH release allows to prototype and to generate the FPGA-SoC.
24    The main restrictions are:
25    1) only the COACH architectural template is supported,
26    2) HAS is not available (but prototyping with virtual coprocessors is available),
27    3) Enhanced communication schemes are not available.
28\item[Milestone 3 ($T0+18$)]  The second COACH release. At this step most of the COACH
29    features are availables.
30    The main restriction is that COACH can not yet generate FPGA-SoC for ALTERA and XILINX
31    architectural templates.
32    The others restriction is that the HAS tools are not yet fully operational.
33\item[Milestone 4 ($T0+24$)] The pre-release of the COACH project. The full design flow is
34    supported.
35    The main restriction are:
36    1) The HAS tools are not yet optimum,
37    2) dynamic reconfiguration is not supported,
38    3) \mustbecompleted{FIXME:ALL .....}
39\item[Final Release ($T0+36$)]
40\end{description}
41This organisation allows to advance globally the project step by step mixing development
42and demonstrator delivrables.
43Hence, demonstrator feed-back will arrive early and so the risk to point out incompatibility
44at the integration phase is significantly reduced.
45\par
46The project has several critical issues:
47\begin{description}
48\item[\xcoachplus format (\novers{\specXcoachDoc}, \novers{\specXcoachToC})]
49    Because all the HAS tools rely on it, it is a
50    crucial task. There are no work-arround but as mentionned in
51    section~\ref{xcoach-problem} (page~\pageref{xcoach-problem}) we have worked on it
52        for a year and are confident.
53\item[\xcoachplus format (\novers{\specXcoachDoc},
54      \novers{\specXcoachToSystemC}, \novers{\specXcoachToVhdl})]
55    Its aim is the generation of the coprocessors (hardware \& prototyping model).
56    By centralizing the coprocessor generation, it guarantees their functioning
57    independently of the used HAS tools.
58        Our experience with UGH and GAUT give us confidence in the succes of this
59        task.
60\item[prototyping of ALTERA \& XILINX architectural templates ({\csgAlteraSystemC},
61     {\csgXilinxSystemC}]
62     The SocLib component library contains most of the SystemC models used for the
63     prototyping description of the ALTERA and XILINX architectural templates.
64     Nevertheless, at this time we do not know how many are missing and if the existing
65     are really useables.
66     If the work of theses tasks is too important, they will be abandoned.
67     In this case the work-arround to prototype the XILINX and ALTERA architectural
68     templates is to use the COACH one. These architectures being very similar, the
69     simulation results must be proportional. Theses tasks will be changed by measuring
70     the deviance.
71\item[VCI/AVALON \& VCI/PLB bridges (\novers{\hpcAvalonBridge}, \novers{\hpcPlbBridge})]
72     If one of these tasks is impossible or too important or leads to inefficiency,
73     it will be abandoned.
74     In this case, the COACH architectural template will not be available for HPC and
75     a SystemC VCI model corresponding to the PCI/X IP will be developped to allow
76     prototyping.
77\end{description}
78
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