Honeybee_Energy Optimization with Galapagos_Erro

Hi Mostapha, Chris and group members,

I made a model with variable shape and window rate. I would like to use Galapagos to optimize the shape and window rate for lowest energy consumption.

Here is three questions：

1. As the optimization goes, more and more errors of zones appeared, and the line of Galapagos seemed confusing.

2. When I checked the result again with the push of bottom "Reinstate", the previous total energy calculation turned "undefined".

3. The error is all about "All of your HBSrfs must make a closed volume".

I attached the gh file. I'll appreciate it if you give me a hand.

Thanks in advance.

Attachments:

Stage02_Optimization_3.gh, 861 KB

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Replies to This Discussion

Permalink Reply by Devang Chauhan on November 16, 2016 at 10:37am

Hi Bi Xiaojian,

I am running your model right now. There seems to be no error. It is running fine. I have one question though. In Galapagos, you have kept the threshold to maximize. Are you sure you want to do that?

Devang

Permalink Reply by Bi Xiaojian on November 16, 2016 at 10:43am

Hi Devang,

Thanks for your immediate reply.

I remembered to set the threshold to minimize, maybe my bad.

The error will appear after about 30 generations. Don't know if it's only my problem.

Permalink Reply by Devang Chauhan on November 16, 2016 at 11:53am

Hi Bi Xiaojian,

How much time approximately did it take for you to reach the that many generations?

Permalink Reply by Bi Xiaojian on November 16, 2016 at 6:38pm

Hi Devang,

Sorry for my late reply.

It will take approximately one hour to reach that generation.

So do you encounter the same problems?

Xiaojian

Permalink Reply by Bi Xiaojian on November 16, 2016 at 8:21pm

Hi Mostapha, Chris, Devang and other group members,

I checked some issues about Galapagos and Honeybee. Mostapha gave a suggestion to add a delay component before the calculation, so is it right to set the data delay component before the Galapagos fittness and after the Honeybee calculation?

I'm also wondering whether my model setting went wrong because of zone errors about not a closed brep.

Xiaojian

Permalink Reply by Devang Chauhan on November 16, 2016 at 10:08pm

Hi Xiaojian,

The model runs fine at my end. The fitness numbers is reducing as it should. I checked the output of your HBZones. They output closed breps so that's fine too.

Devang

Permalink Reply by Bi Xiaojian on November 17, 2016 at 12:02am

Hi Devang,

Great thanks for your work and immediate reply, and so thankful for your patience to run my gh file completely. The result sounds excellent and exciting.

So, you mean my gh file runs well with no problem that I mentioned above. Hmm, interesting. Maybe I should change another device to run again.

Last but not the least, I'll appreciate it if it's possible to post a capture of result for me. If not, everything is fine, still give my best thanks to you.

Xiaojian

Permalink Reply by Devang Chauhan on November 17, 2016 at 2:05am

Hi Xiaojian,

I did not record the result last time. I am re-running the model right now. It's been running since last 2.5 hours and has reached generation 7. I am also eager to find out how this goes. I will share results.

Devang

Permalink Reply by Bi Xiaojian on November 17, 2016 at 2:25am

Hi Devang,

Great thanks for your immediate reply. Wow, that sounds cool, thank you very much for your patient work. Hope to see the result soon.

I re-run the gh file and met the same problem above. I stopped the calculation and checked the error step with parameters setting which caused to crash of zones. Interestingly, the model acted well after I double-clicked the boolean toggle to create zone again. That really confused me.

So hope to hear from you Devang with good news, and hope some guys help me to find out the problems.

Xiaojian

Permalink Reply by Devang Chauhan on November 17, 2016 at 4:00am

I see the same error now. It has got something to do with the Glazing ratios. That is where the error originates. I am looking more into it.

Permalink Reply by Mostapha Sadeghipour Roudsari on November 17, 2016 at 6:19am

Hi Bi and Devang,

I haven't checked the model but generally speaking using intersection and split in optimization studies can make Grasshopper to crash. Intersection can change based on the tolerance values. If you can set up a higher tolerance that works with your model that should help avoiding the crash. If your model is simple enough then I suggest to develop your own code to create the geometry and use Honeybee to create the zones and run the analysis.

Also in some cases it has been an issue with the memory. I have recently made major modification to Honeybee to address the memory issue. If you update to the version available on GitHub you can test it with the new version.

Mostapha

Permalink Reply by Devang Chauhan on November 17, 2016 at 1:06pm

Dear Mostapha,

Sure. I did use the latest version.

Thanks,

Devang