Long Time to open The model_SewerGEMS

The SewerGEMS model is shared on Bentley drive is taking very long time to open, in spite of the Tracking feature is closed the model is really annoying with the long time opening, that with the latest version, I also tried top test that on the SewerGEMS SS4 (10.04.00.145) and still taking long time till the model appears (more than 15 minutes to open). that on the work station computer with SSD drive.

Regards,

Mohamad Azzam

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  • Hi Mohamad,

    Is "JI Model-Rv06" the correct model? If so, I cannot reproduce the issue - the model takes seconds to open for me, using SewerGEMS 10.03.04.53. 

    Since the model was last saved in version 10.02.01.04, the "schema update" step will take some time to upgrade to the new file format, but this still takes a matter of seconds for me.

    This sounds very similar to the issue you reported earlier this year: Very long time to open the SewerGEMS model

    In this previous discussion it was found that you may only be encountering this issue when computing a large number of scenarios with very large output files (tens of gigabytes), along with storing the model on a slower mechanical hard drive.

    1. Can you confirm that the model is indeed stored on a solid state drive?
    2. Can you confirm that there is adequate storage space on that drive?
    3. Are you computing a large number of scenarios and saving the results before opening the model? (which ones?) You had only provided the .STSW and .SQLITE files (no saved results). If so, can you confirm that the model opens quickly if you place a copy of the .STSW and SQLITE in a new folder on your local drive and open from there? (ruling out both output files as well as other supporting files like DWH)
    4. Can you confirm that you are not running out of memory (RAM) when opening the model? Try opening task manager > Performance (or track the memory usage for sewergems.exe in the Details tab). If you have a large number of output files being loaded, they could take up significant memory.
    5. Have you tried clearing out your Windows temporary folder? (open File Explorer, type %temp% in the address bar press enter, and clear out the Bentley folder)
    6. I noticed that panning around your model is a bit sluggish due to a very large number of catchment vertices. Does it help if you uncheck "Catchment" in Element Symbology, save and reopen the model?


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.

  • Dear Jesse,

    To answer the above questions, yes. It is SSD Drive, has good storage, is not running out of memory and the temp folder is empty.

    we re-tried that on the latest SS3 and it did not take a long time to open, it seems the problem is trying to use the pre-released SS4, I hope you try that model on the SS4 before releasing that officially.

    see the screenshot when it runs with SS4

    Regards,

    Mohamad

  • Thank you Jesse - I am sure your developer fix that in the official released.

    would you please share with us version 10.04.00.151, so I can see if that takes shorter time on that.

    Regards,

    Mohamad

  • Hello Jesse - just as additional observation regarding your point #6 above, the catchment is delaying the process also.

    The model after saving it to SS4 is faster to open, however in that version it is lagging when preform zooming and pan with the catchments, hope that can be consider.

    Appreciated,

    Mohamad

  • Hi Mohamad,

    The sluggish panning can be seen in 10.03.04.053 as well - it is due to the very large number of catchment vertices. In the below catchment alone, there are over 600 vertices (see the "Geometry" collection field) due to the curves of the polygon.

    For panning and zooming in a model with such extreme levels of catchment detail, I recommend unchecking the box next to "catchment" in Element Symbology to temporarily hide them.


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.

  • Hello Jesse

    Noted.

    the last about this topic; As you are aware that due to the import, the number of vertices is very high, is that something can be improved in future during the import to reduce vertices and keeping the catchment shape, or any tools to added to SewerGems to optimize the catchments with keeping same shape/area of the catchment especially Bentley now incorporating the 2D and that will have more potential for such cases. If yes will be great.

    Thank you,

    Mohamad  

  • Mohamad,

    This is more of a GIS operation. For example you can export your catchment to Shapefile and use the "Simplify" toolbox tool in ArcGIS or QGIS to greatly reduce the extra vertices while maintaining almost exactly the same appearance and polygon area. You can then update the catchment vertices with the updated Shapefile using ModelBuilder - only check the "update objects" box and use label as the key field. This will only update the geometry of the catchment polygons. 

    As a test I used a 0.5 m tolerance with the "Douglas-Peucker" method in QGIS and a catchment with 595 vertices was reduced to 75 vertices and panning and zooming was much smoother.


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.

    Answer Verified By: Mohamad Azzam 

Reply
  • Mohamad,

    This is more of a GIS operation. For example you can export your catchment to Shapefile and use the "Simplify" toolbox tool in ArcGIS or QGIS to greatly reduce the extra vertices while maintaining almost exactly the same appearance and polygon area. You can then update the catchment vertices with the updated Shapefile using ModelBuilder - only check the "update objects" box and use label as the key field. This will only update the geometry of the catchment polygons. 

    As a test I used a 0.5 m tolerance with the "Douglas-Peucker" method in QGIS and a catchment with 595 vertices was reduced to 75 vertices and panning and zooming was much smoother.


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.

    Answer Verified By: Mohamad Azzam 

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