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Is there a better way to get execution time than from eplusout.end?

asked 2016-05-17 04:39:10 -0500

I'm looking into the sensitivity of energy use and execution time to various parameters (timestep, surface convection, geometry level of detail, etc.). For this I need to save the execution time of each run.

As it stands I'm parsing the string in the eplusout.end file:

Elapsed Time=00hr 01min  1.00sec

But is there a better way? I've had a look in the SQLite file but can't see anything.

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1

I don't think there's a better way (and it's really easy to parse out a one-line file in this case), aside from saving your timestamp prior to simulation and then after it using the programming language you use to launch the simulation (I'm assuming you're using Python to launch your sims)

Julien Marrec's avatar Julien Marrec  ( 2016-05-17 04:49:48 -0500 )edit

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answered 2016-05-17 05:24:49 -0500

Here's the Python I'm using in any case:

import re

def get_execution_time(eplusend):
    """Get the execution time in seconds.

    Parameters
    ----------
    eplusend : str
        Path to the .end file.

    Returns
    -------
    float

    """
    with open(eplusend, 'r') as f:
        text = f.read()
    time = text.split(';')[-1]
    h, m, s, ms = [int(n) for n in re.findall('\d+', time)]
    secs = (h * 60 * 60 +
            m * 60 +
            s +
            ms / 100.0)

    return secs
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Asked: 2016-05-17 04:39:10 -0500

Seen: 102 times

Last updated: May 17 '16