Différences
Ci-dessous, les différences entre deux révisions de la page.
| Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente | ||
|
formation:astrosim2017para4dummies [2017/06/30 14:25] equemene |
formation:astrosim2017para4dummies [2017/07/07 09:25] (Version actuelle) equemene [5 W/2H : Why ? What ? Where ? When ? Who ? How much ? How ?] |
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| Ligne 13: | Ligne 13: | ||
| * **Where ?** On workstations, cluster nodes, laptop (well configured), inside terminals | * **Where ?** On workstations, cluster nodes, laptop (well configured), inside terminals | ||
| * **Who ?** For people who want to open the hood | * **Who ?** For people who want to open the hood | ||
| - | * **How ?** Applying some simples commands (essentially shell ones) | + | * **How ?** Applying some simple commands (essentially shell ones) |
| ===== Session Goal ===== | ===== Session Goal ===== | ||
| Ligne 415: | Ligne 415: | ||
| One Solution:<code> | One Solution:<code> | ||
| - | echo $(/usr/bin/time /tmp/PiMC-jmylq.sh 100000 2>&1 | egrep '(Elapsed|Iterations)' | awk '{ print $NF }' | tr '\n' '/')1 | bc -l | + | echo $(/usr/bin/time /tmp/PiMC-$USER.sh 100000 2>&1 | egrep '(Elapsed|Iterations)' | awk '{ print $NF }' | tr '\n' '/')1 | bc -l |
| </code> | </code> | ||
| Ligne 431: | Ligne 431: | ||
| 32362.45954692556634304207 | 32362.45954692556634304207 | ||
| </code> | </code> | ||
| + | |||
| + | Example of code for previous results:<code> | ||
| + | for i in $(seq 10 ) ; do echo $(/usr/bin/time /tmp/PiMC-$USER.sh 100000 2>&1 | egrep '(Elapsed|Iterations)' | awk '{ print $NF }' | tr '\n' '/')1 | bc -l ; done</code> | ||
| From 1000 to 1000000, 1 time: | From 1000 to 1000000, 1 time: | ||
| Ligne 440: | Ligne 443: | ||
| </code> | </code> | ||
| + | Example of code for previous results:<code> | ||
| + | for POWER in $(seq 3 1 6); do ITERATIONS=$((10**$POWER)) ; echo -ne $ITERATIONS'\t' ; echo $(/usr/bin/time /tmp/PiMC-$USER.sh $ITERATIONS 2>&1 | egrep '(Elapsed|Iterations)' | awk '{ print $NF }' | tr '\n' '/')1 | bc -l ; done</code> | ||
| ==== Split the execution in equal parts ==== | ==== Split the execution in equal parts ==== | ||
| Ligne 789: | Ligne 794: | ||
| Examples of statistics on estimators: | Examples of statistics on estimators: | ||
| With //magic// ''Rmmmms-$USER.r'' command, we can extract statistics on different times | With //magic// ''Rmmmms-$USER.r'' command, we can extract statistics on different times | ||
| - | * for //Elapsed time// : ''cat /tmp/PiMC-jmylq_201706291231.log | grep Elapsed | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>1.96 2.02 1.985 1.987 0.01888562 0.009514167</code> | + | * for //Elapsed time// : ''cat /tmp/PiMC-$USER_201706291231.log | grep Elapsed | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>1.96 2.02 1.985 1.987 0.01888562 0.009514167</code> |
| - | * for //System time// : ''cat /tmp/PiMC-jmylq_201706291231.log | grep System | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>0.09 0.22 0.14 0.139 0.03665151 0.2617965</code> | + | * for //System time// : ''cat /tmp/PiMC-$USER_201706291231.log | grep System | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>0.09 0.22 0.14 0.139 0.03665151 0.2617965</code> |
| - | * for //User time// : ''cat /tmp/PiMC-jmylq_201706291231.log | grep User | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>59.12 59.81 59.375 59.436 0.2179297 0.003670394</code> | + | * for //User time// : ''cat /tmp/PiMC-$USER_201706291231.log | grep User | awk '{ print $NF }' | /tmp/Rmmmms-$USER.r'':<code>59.12 59.81 59.375 59.436 0.2179297 0.003670394</code> |
| The previous results show that the variability, in this cas, in | The previous results show that the variability, in this cas, in | ||
| Ligne 966: | Ligne 971: | ||
| </code> | </code> | ||
| + | {{ :formation:pimc_1_64.png?600 |}} | ||
| ==== Other sample codes (used for courses) ==== | ==== Other sample codes (used for courses) ==== | ||
| Ligne 992: | Ligne 998: | ||
| * estimates the parameters with Amdahl Law and Mylq Law | * estimates the parameters with Amdahl Law and Mylq Law | ||
| + | --- //[[emmanuel.quemener@ens-lyon.fr|Emmanuel Quemener]] 2017/06/30 14:26// | ||