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Benchmark performance of ppUtils vs Selafin vs TelemacFile
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TOPIC: Benchmark performance of ppUtils vs Selafin vs TelemacFile

Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44231

  • tomsail
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Thanks Nico.

Seeing these results I definitely need to install it in my conda package too.
Would you know how it is more than 20 times faster?

For the xarray implementation, I think the most important is to have light supporting scripts and dependencies.

The processing time (for reading/writing input/output files) can then be saved with paralleling, dask arrays and lazy loading.

Here is the file if you wish to complete my benchmark :)
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44232

  • nicogodet
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Seeing these results I definitely need to install it in my conda package too.
It's quite easy to compile it ;)
Would you know how it is more than 20 times faster?
I'm not a expert but it is probably due to python delegating the reading to the compiled FORTRAN backend.
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44235

  • nicogodet
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With your file
Time taken by ppUtils: 6.4874138832092285 seconds
Time taken by ppUtils_access: 2.476961135864258 seconds
Time taken by selafin: 1.0657806396484375 seconds
Time taken by selafin_access: 0.3386349678039551 seconds
Time taken by telemacHermes: 0.14725613594055176 seconds
Time taken by telemacHermes_access: 0.031247615814208984 seconds
Time taken by pyTelTools: 0.9454250335693359 seconds
Time taken by pyTelTools_access: 1.0548181533813477 seconds
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44237

  • Lux
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Thank you for benchmark and sorry for the delay but for PyTelTools, the reading a record can be speedup in not reading again the header (the presence of 2 "with" is not optimal).

Here is a code :
# PyTelTools
    @timer
    def pyTelTools(f):
        resin = Serafin.Read(f, 'en')
        resin.__enter__()
        resin.read_header()
        return resin

    @timer
    def pyTelTools_access(slf, i_record, f):
        slf.read_var_in_frame(i_record, slf.header.header.var_IDs[0])

    file_3d = '/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/test/hindcast/201303/input_wind_tmp.slf'
    resin = pyTelTools(file_3d)
    pyTelTools_access(resin, 10, file_3d)

Hope it helps,
Luc
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44238

  • nicogodet
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Thomas' file :
Time taken by pyTelTools: 1.1253736019134521 seconds
Time taken by pyTelTools_access: 0.13963556289672852 seconds

Mine:
Time taken by pyTelTools: 0.44992566108703613 seconds
Time taken by pyTelTools_access: 0.055106163024902344 seconds
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44239

  • Lux
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Thank you Nicolas for the integration of PyTelTools optimization in the comparison.
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44241

  • sebourban
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.. another conclusion to this benchmark (although it dependens on compilation and hardware), the Windows version seems just as fast as the linux version.

Good work to all !
Thank you.
Sébastien.
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44242

  • Lux
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Sorry Nicolas, I just realized that all variables should be read for the access benchmark.
But in the script shared initially, PyTelTools was forced to read only the first variable (so Z probably).

If you want to compare same tasks, could you please update PyTelTools (to have commit f6af747) and use read_vars_in_frame (or eventually read_vars_in_frame_as_3d) instead of read_var_in_frame.

Here is a snippet example:
    # PyTelTools
    @timer
    def pyTelTools(f):
        resin = Serafin.Read(f, 'en')
        resin.__enter__()
        resin.read_header()
        return resin

    @timer
    def pyTelTools_access(slf, i_record):
        slf.read_vars_in_frame(i_record)

    file_3d = '/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/test/hindcast/201303/input_wind_tmp.slf'
    resin = pyTelTools(file_3d)
    pyTelTools_access(resin, 10, file_3d)

The output should have the shape: (number of variables, number of nodes).

Remark: the reading in PyTelTools has not been optimized to read simultaneously all variables. But it could be easy optimized while providing also other interfaces (read specific variables).


Best Regards,
Luc
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44243

  • Lux
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(I can not edit my previous post, so I post a fix...)

Sorry again, resin.get_time() has be forgotten :
# PyTelTools
    @timer
    def pyTelTools(f):
        resin = Serafin.Read(f, 'en')
        resin.__enter__()
        resin.read_header()
        resin.get_time()
        return resin

    @timer
    def pyTelTools_access(slf, i_record):
        slf.read_vars_in_frame(i_record)

    file_3d = '/home/tomsail/Documents/work/python/pyPoseidon/Tutorial/test/hindcast/201303/input_wind_tmp.slf'
    resin = pyTelTools(file_3d)
    pyTelTools_access(resin, 10, file_3d)
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Benchmark performance of ppUtils vs Selafin vs TelemacFile 2 months 1 week ago #44246

  • nicogodet
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My file
Time taken by pyTelTools: 0.465364933013916 seconds
Time taken by pyTelTools_access: 0.5686259269714355 seconds

Thomas' file
Time taken by pyTelTools: 1.167872667312622 seconds
Time taken by pyTelTools_access: 0.3161137104034424 seconds
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