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[GNUnet-SVN] r27644 - in msh/doc: . fig/svg
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From: |
gnunet |
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Subject: |
[GNUnet-SVN] r27644 - in msh/doc: . fig/svg |
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Date: |
Thu, 27 Jun 2013 11:53:00 +0200 |
Author: harsha
Date: 2013-06-27 11:52:59 +0200 (Thu, 27 Jun 2013)
New Revision: 27644
Modified:
msh/doc/fig/svg/job_startup.svg
msh/doc/msh.tex
Log:
diagram and writeup
Modified: msh/doc/fig/svg/job_startup.svg
===================================================================
--- msh/doc/fig/svg/job_startup.svg 2013-06-27 09:20:00 UTC (rev 27643)
+++ msh/doc/fig/svg/job_startup.svg 2013-06-27 09:52:59 UTC (rev 27644)
@@ -67,9 +67,9 @@
borderopacity="1.0"
inkscape:pageopacity="0.0"
inkscape:pageshadow="2"
- inkscape:zoom="2.8"
- inkscape:cx="184.63266"
- inkscape:cy="156.56654"
+ inkscape:zoom="5.6"
+ inkscape:cx="270.69217"
+ inkscape:cy="103.8325"
inkscape:document-units="px"
inkscape:current-layer="layer1"
showgrid="false"
@@ -134,82 +134,62 @@
transform="translate(-68.4375,-169.14286)">
<text
xml:space="preserve"
-
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
- x="137.85715"
- y="334.14789"
- id="text2985"
- sodipodi:linespacing="125%"><tspan
- sodipodi:role="line"
- id="tspan2987"
- x="137.85715"
- y="334.14789">mshd</tspan></text>
- <text
- xml:space="preserve"
-
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
- x="379.79947"
- y="334.14789"
- id="text2985-4"
- sodipodi:linespacing="125%"><tspan
- sodipodi:role="line"
- id="tspan2987-2"
- x="379.79947"
- y="334.14789">mshd</tspan></text>
- <text
- xml:space="preserve"
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
- x="152.5"
+ x="144.5"
y="382.57648"
id="text3014"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan3016"
- x="152.5"
+ x="144.5"
y="382.57648">Application</tspan></text>
<text
xml:space="preserve"
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
- x="152.5"
+ x="144.5"
y="426.36218"
id="text3018"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan3020"
- x="152.5"
+ x="144.5"
y="426.36218">msh</tspan></text>
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
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+ d="m 144.5,343.7774 0,26.85662"
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inkscape:connector-curvature="0"
sodipodi:nodetypes="cc" />
<path
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
- d="m 152.5,387.394 0,26.82533"
+ d="m 144.5,387.394 0,26.82533"
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inkscape:connector-curvature="0"
sodipodi:nodetypes="cc" />
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xml:space="preserve"
style="font-size:10px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans
Italic"
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+ x="148.5"
y="357.7193"
id="text4420"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4422"
- x="154.5"
- y="357.7193">start</tspan></text>
+ x="148.5"
+ y="357.7193"
+ style="font-style:normal">10</tspan></text>
<text
xml:space="preserve"
style="font-size:10px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans
Italic"
- x="165.71429"
- y="403.14789"
+ x="151.40085"
+ y="402.89536"
id="text4424"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4426"
- x="165.71429"
- y="403.14789">use</tspan></text>
+ x="151.40085"
+ y="402.89536"
+ style="font-style:normal">11</tspan></text>
<text
xml:space="preserve"
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
@@ -233,19 +213,31 @@
id="tspan4460"
x="394.64285"
y="426.29074">cmd</tspan></text>
+ <text
+ xml:space="preserve"
+
style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Serif"
+ x="110.22112"
+ y="333.25507"
+ id="text2985"
+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
+ x="110.22112"
+ y="333.25507"
+ id="tspan4262"
+ style="text-align:start;text-anchor:start">mshd
(master)</tspan></text>
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style="fill:none;stroke:#0f0707;stroke-width:1;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
id="rect4462"
- width="46.68111"
- height="14.80503"
- x="128.21428"
- y="323.43362" />
+ width="89.969322"
+ height="25.414677"
+ x="101.97963"
+ y="318.30737" />
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style="fill:none;stroke:#0f0707;stroke-width:1;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
id="rect4464"
width="70.584412"
height="14.268419"
- x="117.5565"
+ x="109.5565"
y="372.52951"
ry="0" />
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@@ -253,15 +245,15 @@
id="rect4462-5"
width="46.68111"
height="14.80503"
- x="128.98088"
+ x="120.98088"
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style="fill:none;stroke:#0f0707;stroke-width:1;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
id="rect4462-55"
- width="46.68111"
- height="14.80503"
- x="371.30231"
- y="324.53854" />
+ width="85.793503"
+ height="24.507414"
+ x="354.93326"
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style="fill:none;stroke:#0f0707;stroke-width:1;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
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@@ -271,7 +263,7 @@
y="416.56683" />
<path
style="fill:none;stroke:#000000;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:4,
4;stroke-dashoffset:0;marker-end:url(#Arrow1Mend)"
- d="m 175.66199,423.79076 193.25202,0.11546"
+ d="m 168.16199,423.96933 200.75202,-0.0631"
id="path4498"
inkscape:connector-curvature="0"
sodipodi:nodetypes="cc" />
@@ -301,31 +293,31 @@
style="font-style:normal">(indirect MPI)</tspan></text>
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
- d="m 128.98088,423.79076 c -47.630685,-9.62465 -39.895828,-89.4643
-2.99874,-92.77605"
+ d="M 120.05231,424.68362 C 84.921624,410.23754 80.335048,349.14789
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Italic"
- x="85.105354"
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+ x="78.388351"
+ y="379.25613"
id="text4912"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4914"
- x="85.105354"
- y="379.60059"
- style="font-style:normal">IPC</tspan></text>
+ x="78.388351"
+ y="379.25613"
+ style="font-style:normal">12</tspan></text>
<path
-
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#Arrow1Mstart);marker-end:url(#Arrow1Mend)"
- d="m 177.23137,330.93084 191.70486,0.67242"
+
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:none;marker-end:url(#Arrow1Mend)"
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inkscape:connector-curvature="0"
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
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+ d="m 394.64287,343.09357 -1e-5,71.06255"
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inkscape:connector-curvature="0"
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@@ -339,19 +331,20 @@
sodipodi:role="line"
id="tspan5286"
x="396.73215"
- y="375.54449">start</tspan></text>
+ y="375.54449"
+ style="font-style:normal">14</tspan></text>
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xml:space="preserve"
style="font-size:10px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans
Italic"
- x="265.58035"
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+ x="266.08542"
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id="text5288"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan5290"
- x="265.58035"
- y="325.76938"
- style="font-style:normal">MPI</tspan></text>
+ x="266.08542"
+ y="315.98129"
+ style="font-style:normal">4, 8</tspan></text>
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style="fill:#000000;fill-opacity:0.68995631;stroke:#0f0707;stroke-width:1;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0"
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@@ -373,53 +366,30 @@
style="font-style:normal">socket</tspan></text>
<path
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
- d="m 394.64287,324.53854 c -1e-5,-24.23493 -36.98573,-33.13688
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Italic"
- x="366.18033"
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id="text5860"
sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan5862"
- x="366.18033"
- y="309.7738">open</tspan></text>
+ x="370.46603"
+ y="307.2738">3</tspan></text>
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-end:url(#Arrow1Mend)"
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- <text
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style="font-size:10px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans
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style="font-size:10px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans
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- id="tspan6062"
- x="265.58035"
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- style="font-style:normal">(non-blocking)</tspan></text>
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@@ -513,37 +483,37 @@
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sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
id="tspan4237"
- x="180.79903"
+ x="188.65617"
y="253.72234"
- style="font-style:italic">start</tspan></text>
+ style="font-style:normal">2</tspan></text>
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xml:space="preserve"
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sodipodi:linespacing="125%"><tspan
sodipodi:role="line"
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- x="356.38687"
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- style="font-style:italic">start</tspan></text>
+ x="348.52972"
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+ style="font-style:normal">2</tspan></text>
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- x="283.55939"
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+ style="font-style:normal">1</tspan></text>
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+ sodipodi:linespacing="125%"><tspan
+ sodipodi:role="line"
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+ x="302.68573"
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style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;stroke:none;font-family:Serif;-inkscape-font-specification:Sans"
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+ <text
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+ <text
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(worker)</tspan></text>
</g>
</svg>
Modified: msh/doc/msh.tex
===================================================================
--- msh/doc/msh.tex 2013-06-27 09:20:00 UTC (rev 27643)
+++ msh/doc/msh.tex 2013-06-27 09:52:59 UTC (rev 27644)
@@ -4,6 +4,7 @@
\usepackage{color}
\usepackage{graphicx}
\usepackage{import}
+\usepackage[pdftex,hyperfootnotes=false,pdfpagelabels]{hyperref}
\graphicspath{{fig/svg/}}
@@ -40,25 +41,49 @@
executed command is indirectly relayed from and to the respective \texttt{msh}
client through the local \texttt{mshd}.
-Communication between the local and the remote \texttt{mshd} is done through
-MPI. For this reason, \texttt{mshd} instances are to be started by the
-execution wrappers (\texttt{mpiexec}, \texttt{mpirun}, \texttt{poe},
-\texttt{srun}). While starting the \texttt{mshd} instances an optional binary
-and its arguments to it can be given as arguments to \texttt{mshd} in the
-execution wrapper. A process corresponding to the given binary is started with
-its arguments by the \texttt{mshd} instance running with MPI id $0$. If the
-optional binary is not given a \texttt{bash} process is started by default.
-\texttt{msh} can only be used these processes as it requires to communicate
with
-the local \texttt{mshd}.
-
-\texttt{msh} can only be used by the processes started by \texttt{mshd}.
-
-
\begin{figure}[ht]
\centering
\input{fig/svg/job_startup.pdf_tex}
- \caption{Job start-up overview}
+ \caption[Job start-up overview]{Job start-up overview }
\label{fig:job_startup}
\end{figure}
+An overview of the interactions involved in starting an application with MSH is
+shown in Figure~\ref{fig:job_startup}: 1. The job scheduler starts the
execution
+wrapper which is used to start multiple instances of MPI programs. Examples
for
+execution wrappers are \texttt{mpiexec}, \texttt{mpirun}, \texttt{poe} and
+\texttt{srun}. 2. The execution wrapper starts an \texttt{mshd} instance on
+each of the allocated hosts. We distinguish the instance having MPI id 0 as
the
+master instance and all other instances as worker instances. 3. Each
+\texttt{mshd} instance opens a local socket with a random free port and binds
it
+to all available IP addresses of its host. 4. The worker instances send their
+IP addresses and port numbers to which their local sockets were bound to the
+master instance using MPI messaging. 5. The master instance verifies the
+received group of IP addresses from each worker instance by opening a TCP
+connection to the socket with each of the received IP addresses in parallel and
+in non-blocking mode. The IP address corresponding to the first successfully
+established TCP connection is deemed as the worker instance's IP. 6. After
+verifying the IP addresses of all worker instances, the master instance chooses
+a worker instance to verify its own IP addresses. 7. The worker instance
+verifies the IP address of the master instance. 8. The worker instance
notifies
+the master instance of its IP address. 9. the master instance broadcasts the
+instance--IP mapping to all worker instances through MPI. 10. All the
instances
+open a local socket for IPC and set an environmental variable to refer to this
+socket. The master instance then starts the given application which defaults
to
+\texttt{bash} if it not specified as a parameter to \texttt{mshd} in the
+execution wrapper. 11. The application calls \texttt{msh} for executing a
+remote command on one of the allocated hosts. 12. The \texttt{msh} program
+inherits the environmental variable set by the master instance and communicates
+to the master instance the remote command to be executed through IPC.
+Additionally, it forwards its stdin and stderr as stdin and stderr respectively
+for the remote command to the master instance. 13. The master instance
+determines the worker instance responsible for executing the remote command
from
+the instance--IP mapping and relays the remote command, its stdin and stderr to
+the worker instance through MPI. 14. The worker instance executes the remote
+command with the relayed stdin and stderr. The remote command may also use
+\texttt{msh} to execute commands to other hosts. In this case, the
\texttt{msh}
+will connect to the local worker instance for relaying the command to the
remote
+instance.
+
+
\end{document}
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