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Commit 6d089531 authored by Moe Jette's avatar Moe Jette
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Update task affinity information with respect to plane distribution

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...@@ -14,7 +14,7 @@ where <i>plane_size</i> is the requested plane/block size. ...@@ -14,7 +14,7 @@ where <i>plane_size</i> is the requested plane/block size.
<p>In the examples below we assume we have 21 tasks and that the <p>In the examples below we assume we have 21 tasks and that the
task list is: 0, 1, 2, 3, 4, ..., 19, 20. task list is: 0, 1, 2, 3, 4, ..., 19, 20.
<p>On <u>One (1)</u> node: <i>srun -N 1-1 -n 21 -m plane=4 -s <...></i>. <p>On <u>One (1)</u> node: <i>srun -N 1-1 -n 21 -m plane=4 <...></i>.
<p>The distribution results in a plane distribution with plane_size 21. <p>The distribution results in a plane distribution with plane_size 21.
Even thought the user specified a plane_size of 4 the final plane Even thought the user specified a plane_size of 4 the final plane
...@@ -23,10 +23,10 @@ distribution results in a plane_size of 21. ...@@ -23,10 +23,10 @@ distribution results in a plane_size of 21.
<p> <p>
<center> <center>
<img src="plane_ex1.gif"> <img src="plane_ex1.gif">
<p>Figure 1: Process layout for <i>srun -N 1-1 -n 21 -m plane=4 -s <...></i> <p>Figure 1: Process layout for <i>srun -N 1-1 -n 21 -m plane=4 <...></i>
</center> </center>
<p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=4 -s <...></i>. <p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=4 <...></i>.
<p>The plane distribution with a plane_size of 4 results in the <p>The plane distribution with a plane_size of 4 results in the
following allocation of the task ids: following allocation of the task ids:
...@@ -34,10 +34,10 @@ following allocation of the task ids: ...@@ -34,10 +34,10 @@ following allocation of the task ids:
<p> <p>
<center> <center>
<img src="plane_ex2.gif"> <img src="plane_ex2.gif">
<p>Figure 2: Process layout for <i>srun -N 4-4 -n 21 -m plane=4 -s <...> </i> <p>Figure 2: Process layout for <i>srun -N 4-4 -n 21 -m plane=4 <...> </i>
</center> </center>
<p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=2 -s <...> <p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=2 <...>
</i>. </i>.
<p>The plane distribution with a plane_size of 2 results in the <p>The plane distribution with a plane_size of 2 results in the
...@@ -46,7 +46,7 @@ following allocation of the task ids: ...@@ -46,7 +46,7 @@ following allocation of the task ids:
<p> <p>
<center> <center>
<img src="plane_ex3.gif"> <img src="plane_ex3.gif">
<p>Figure 3: Process layout for <i>srun -N 4-4 -n 21 -m plane=2 -s <...></i> <p>Figure 3: Process layout for <i>srun -N 4-4 -n 21 -m plane=2 <...></i>
</center> </center>
<p class="footer"><a href="#top">top</a></p> <p class="footer"><a href="#top">top</a></p>
...@@ -112,38 +112,44 @@ affinity enabled</h3> ...@@ -112,38 +112,44 @@ affinity enabled</h3>
<p>In the examples below we assume we have 21 tasks and that the <p>In the examples below we assume we have 21 tasks and that the
task list is: 0, 1, 2, 3, 4, ..., 19, 20. task list is: 0, 1, 2, 3, 4, ..., 19, 20.
<p>On <u>One (1)</u> node: <i>srun -N 1-1 -n 21 -m plane=4 -s <...></i>. <p>On <u>One (1)</u> node:
<i>srun -N 1-1 -n 21 -m plane=4 --cpu_bind=core <...></i>.
Even thought the user specified a plane_size of 4 the final plane Even thought the user specified a plane_size of 4 the final plane
distribution results in a plane distribution with plane_size=8. distribution results in a plane distribution with plane_size=8.
<p> <p>
<center> <center>
<img src="plane_ex5.gif"> <img src="plane_ex5.gif">
<p>Figure 5: Process layout for <i>srun -N 1-1 -n 21 -m plane=4 -s <...></i>. <p>Figure 5: Process layout for
<i>srun -N 1-1 -n 21 -m plane=4 --cpu_bind=core <...></i>.
</center> </center>
<p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=4 -s <...> <p>On <u>four (4)</u> nodes:
</i>. The plane distribution with a plane_size of 4 results in the <i>srun -N 4-4 -n 21 -m plane=4 --cpu_bind=core <...></i>.
The plane distribution with a plane_size of 4 results in the
following allocation of the task ids: following allocation of the task ids:
<p> <p>
<center> <center>
<img src="plane_ex6.gif" width=600> <img src="plane_ex6.gif" width=600>
<p>Figure 6: Process layout for <i>srun -N 4-4 -n 21 -m plane=4 -s <...></i>. <p>Figure 6: Process layout for
<i>srun -N 4-4 -n 21 -m plane=4 --cpu_bind=core <...></i>.
</center> </center>
<p>On <u>four (4)</u> nodes: <i>srun -N 4-4 -n 21 -m plane=2 -s <...> <p>On <u>four (4)</u> nodes:
<i>srun -N 4-4 -n 21 -m plane=2 --cpu_bind=core <...>
</i>. The plane distribution with a plane_size of 2 results in the </i>. The plane distribution with a plane_size of 2 results in the
following allocation of the task ids: following allocation of the task ids:
<p> <p>
<center> <center>
<img src="plane_ex7.gif" width=600> <img src="plane_ex7.gif" width=600>
<p>Figure 7: Process layout for <i>srun -N 4-4 -n 21 -m plane=2 -s <...></i>. <p>Figure 7: Process layout for
<i>srun -N 4-4 -n 21 -m plane=2 --cpu_bind=core <...></i>.
</center> </center>
<p class="footer"><a href="#top">top</a></p> <p class="footer"><a href="#top">top</a></p>
<p style="text-align:center;">Last modified 12 October 2006</p> <p style="text-align:center;">Last modified 1 April 2009</p>
<!--#include virtual="footer.txt"--> <!--#include virtual="footer.txt"-->
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