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1 | This program provides an implementation for four integrators. |
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2 | |
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3 | The one that I studied is the Wisdom-Hollman simplectic integrator, which function coresponds to the HWHStep. |
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4 | |
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5 | Files: |
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6 | |
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7 | NBIserial.c - serial version of the program. |
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8 | NBIparalel.c - paralel version of the program. |
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9 | NBIsampleinput - input file |
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10 | NBIsampleoutput - output file |
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11 | NBIsampleoutput.log - log file |
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12 | scr_serial.sh - script to run the serial version on fep |
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13 | scr_paralel.sh - script to run the paralel version on fep, it takes as input arguments the number of threads and the schedule type |
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14 | |
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15 | Ex: scr_paralel.sh 4 "guided" |
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16 | |
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17 | Compile: make |
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18 | Run: |
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19 | Serial |
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20 | time ./NBIserial NBIsampleinput |
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21 | |
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22 | Time: |
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23 | real 0m0.017s |
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24 | user 0m0.000s |
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25 | sys 0m0.016s |
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26 | |
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27 | Paralel |
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28 | setenv OMP_NUM_THREADS 4 |
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29 | setenv OMP_SCHEDULE "dynamic" |
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30 | time ./NBIparalel NBIsampleinput |
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31 | |
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32 | Time: |
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33 | real 0m0.084s |
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34 | user 0m0.016s |
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35 | sys 0m0.016s |
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36 | |
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37 | |
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