2014-01-15 23:16:33 +00:00
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\subsection{Intel MPI Benchmark (IMB)}
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2014-01-16 13:07:42 +00:00
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Zur Messung der Kommunikationsleistung wurden die MPI-Test Ping-Pong, Barrier, Allreduce und Alltoall mit variierenden Nachrichtengrößen durchgeführt.
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2014-01-16 10:59:45 +00:00
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\subsubsection{Ping-Pong}
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2014-01-15 23:16:33 +00:00
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\pgfplotstableread{
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fs t s
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0 88.99 0.00
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1 109.42 0.01
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2 109.43 0.02
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4 109.62 0.03
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8 109.83 0.07
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16 109.87 0.14
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32 110.12 0.28
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64 143.19 0.43
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128 149.24 0.82
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256 150.41 1.62
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512 155.65 3.14
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1024 160.39 6.09
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2048 164.54 11.87
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4096 217.32 17.97
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8192 308.20 25.35
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16384 434.78 35.94
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32768 573.14 54.52
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65536 1742.36 35.87
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131072 1800.80 69.41
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262144 3070.65 81.42
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524288 5457.60 91.62
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1048576 10350.31 96.62
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2097152 20150.02 99.26
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4194304 38953.70 102.69
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8388608 77368.40 103.40
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16777216 154088.97 103.84
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33554432 319229.01 100.24
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67108864 634328.48 100.89
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134217728 1262632.97 101.38
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268435456 2514089.47 101.83
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536870912 5052755.00 101.33
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}\imbpingpong
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=536870912,
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xmode=log,
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ymode=log,
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ytick pos=left,
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log basis x=2,
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2014-01-16 10:59:45 +00:00
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xlabel={Dateigröße in KiB},
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2014-01-15 23:16:33 +00:00
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ylabel={Zugriffszeit in $\mu$s},
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y axis line style=blue,
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table[x={fs}, y={t}] {\imbpingpong};
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\end{axis}
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\begin{axis}[
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xmin=1,
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xmax=536870912,
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xmode=log,
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ytick pos=right,
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axis y line* = right,
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hide x axis,
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ylabel={Übertragungsgeschwindigkeit in MiB/s},
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ylabel near ticks,
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y axis line style=red,
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width=15cm, height=10cm
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]
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\addplot[smooth,red] table[x={fs}, y={s}] {\imbpingpong};
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\end{axis}
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2014-01-16 10:59:45 +00:00
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\end{tikzpicture}
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\subsubsection{Barrier}
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Verzögerungszeiten: (jeweils Mittelwert aus 1000 Messläufen)
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\begin{itemize}
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\item 2 Prozesse: 151 $\mu$s
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\item 4 Prozesse: 177 $\mu$s
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\item 8 Prozesse: 670 $\mu$s
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\end{itemize}
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\pagebreak
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\subsubsection{All-to-All}
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\paragraph{2 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.15
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1 143.44
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2 143.50
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4 143.05
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8 144.55
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16 143.11
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32 145.24
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64 255.02
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128 273.25
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256 282.80
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512 286.73
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1024 287.12
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2048 245.55
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4096 335.79
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8192 371.86
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16384 456.60
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32768 669.11
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65536 2821.84
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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\end{tikzpicture}
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\paragraph{4 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.16
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1 286.87
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2 977.17
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4 286.50
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8 1233.80
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16 294.61
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32 1661.17
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64 5119.18
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128 341.65
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256 807.20
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512 359.30
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1024 4582.34
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2048 425.47
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4096 805.06
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8192 1238.56
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16384 1859.28
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32768 2307.79
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65536 7490.86
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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\end{tikzpicture}
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\pagebreak
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\paragraph{8 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.17
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1 29772.58
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2 30518.69
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4 31073.18
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8 23189.25
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16 9623.66
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32 37315.96
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64 19665.14
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128 37998.11
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256 54676.67
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512 68468.67
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1024 143223.38
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2048 9301.88
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4096 170422.20
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8192 7619.07
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16384 27772.60
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32768 276603.04
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65536 351964.27
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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\end{tikzpicture}
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\subsubsection{All-Reduce}
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\paragraph{2 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.15
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4 144.45
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8 143.73
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16 144.26
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32 148.73
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64 256.37
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128 282.03
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256 253.17
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512 269.54
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1024 286.83
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2048 184.63
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4096 324.95
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8192 377.51
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16384 717.09
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32768 866.90
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65536 1293.20
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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\end{tikzpicture}
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\pagebreak
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\paragraph{4 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.16
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4 269.55
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8 222.32
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16 271.71
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32 222.10
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64 289.93
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128 291.06
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256 289.65
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512 293.38
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1024 349.66
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2048 321.04
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4096 488.41
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8192 587.40
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16384 2010.40
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32768 2396.95
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65536 3498.13
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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\end{tikzpicture}
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\paragraph{8 Prozesse} \mbox{}\\
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\pgfplotstableread{
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0 0.16
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4 7048.69
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8 8410.30
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16 7831.95
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32 8408.59
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64 6417.31
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128 11163.88
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256 18099.17
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512 27901.94
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1024 29209.31
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2048 2598.34
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4096 2781.34
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8192 2232.44
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16384 4275.79
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32768 5040.09
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65536 7782.45
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}\imballtoall
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\begin{tikzpicture}
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\begin{axis}[
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xmin=1,
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xmax=65536,
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xmode=log,
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log basis x=2,
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xlabel={Dateigröße in MiB},
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ylabel={Zugriffszeit in $\mu$s},
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width=15cm, height=10cm
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]
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\addplot[smooth,blue] table {\imballtoall};
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\end{axis}
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2014-01-15 23:16:33 +00:00
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\end{tikzpicture}
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