Error: Can't write to simulation log file

[Yanfei Li]

Thierry Nouidui,

    I changed the example file by connecting C programming script and the EnergyPlus(8.5.0).

    On EnergyPlus side, it can go successfully. But on SystemCommand side, it can not go. The error:

 How to fix it? I double checked the SystemCommand and did not find any valuable clues.

 I also attached my XML file for reference. 

Yanfei

[Thierry Nouidui]

This might be a write permission issue. Could you select a Public folder where log file should be written? C:\Users\Public?

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--------------------------------------
Thierry Stephane Nouidui, PhD

Simulation Research Group
Lawrence Berkeley National Laboratory
1 Cyclotron Road, MS 90R3147
Berkeley, CA 94720
(510) 495-2337 voice
email: TSNo...@lbl.gov
http://simulationresearch.lbl.gov
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[Yanfei Li]

Hey Thierry,

    Thanks. I tried and it did not work. Still the same problem. Any other clues?

On Tuesday, June 20, 2017 at 10:21:10 AM UTC-5, Thierry Nouidui wrote:

This might be a write permission issue. Could you select a Public folder where log file should be written? C:\Users\Public?

On Tue, Jun 20, 2017 at 7:35 AM, Yanfei Li <aero...@gmail.com> wrote:

Thierry Nouidui,

    I changed the example file by connecting C programming script and the EnergyPlus(8.5.0).

    On EnergyPlus side, it can go successfully. But on SystemCommand side, it can not go. The error:

 How to fix it? I double checked the SystemCommand and did not find any valuable clues.

 I also attached my XML file for reference. 

Yanfei

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[Thierry Nouidui]

Could you send a screenshot of the new error message?

Thanks!

Thierry

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[cfdcoder]

Hey Thierry,

   Thanks. 

   The screen shot is attached.  Still the same issue, after i changed to the public folder.

Yanfei

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[Julien MARREC]

Maybe try running bcvtb as admin?!

Envoyé de mon iPhone

<screen2.png>

[Thierry Nouidui]

Could you also send your XML system model file. Maybe both tools are somehow trying to write to the same folder which causes a conflict?

[Kopal Nihar]

I faced a similar problem just few days ago. It cannot write to the simulation log file because the names for both EnergyPlus log file and systemCommand log files are same. You can try changing the log file for any one of Energyplus or systemCommand and it will work.

Thanks,

Kopal

[cfdcoder]

Hey Kopal Nihar,

    Thank you so much. You saved my day! After i renaming the log file, and it works. 

    The EnergyPlus and SystemCommand both write a log file called: simulation.log. If they are the same, they will overwrite each other, causing the error.

Yanfei

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[Thierry Nouidui]

The reason is because of both actors writing the file into the same folder which leads to the name clash. 

If you select distinct working folder for each actor then that should be fine.

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[Kopal Nihar]

You're welcome! Yes, we can change the working folder too as Thierry suggested.

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[doyun...@gmail.com]

Hello, guys.

I am facing the similar error that simulation.log cannot be created.

But In my case, I am doing iteration calculation with using VisualModelReference like the photo below.

In visualmodelreference, I have a energyplus simulator. In visualmodelreference2, I have a matlab simulator.

When simulation of visualmodelreference is finished, the simulation of visualmodelreference2 starts. 

It would be repeated again and again, however, from the second iteration term, it cannot be executed because simulation.log cannot be created.

I can not manually change the name of simulation.log file because the iteration will be repeated automatically.

Am I missing something? or Is this the problem that cannot be solved until now?

This is the error, described in the photo below.

 

2017년 6월 22일 목요일 오후 2시 37분 2초 UTC+9, Kopal Nihar 님의 말:

[Wenke Fan]

Hello Thierry,

A question about the version of Energyplus. Does BCVTV support the Energyplus of version 8.8. many thanks.

Regards

Wenke Fan

[Thierry Nouidui]

If you transitioned the EnergyPlus examples files which come along with the BCVTB for EnergyPlus 8.8, then you should be fine. 

Note however that examples which used erl external interface variables won't work because of a recent change in EnergyPlus.

Thanks!

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