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April 3, 2017, 11:56 |
Starting LES with RANS Result files
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#1 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
Rep Power: 14 |
Hi
I have a RANS result file rans.res And I was loading it as my intialization for my LES case setup and then tried to generate the .def file for it and .ccl file But unfortunately when I run the case on cluster it is searching for the .def file on my desktop and cfx crashes leaving an error saying ANSYS CFX Solver Input File D:/CFX_Simulation/LES_Simulation/Test/LES_Rans_Restart.def does not exist But actually this file was saved here and then copied to my working directory in my cluster along with the .res file and also .ccl file and the pbs script. but its not working. Kindly help me. |
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April 4, 2017, 04:49 |
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#2 |
Member
Join Date: Jan 2015
Posts: 63
Rep Power: 11 |
1) Make sure that the file is copied on the master node of your cluster at the address required
2) Make sure that CFX has enough rights to read that file. Perhaps in the copy operation it has been copied with super user rights, so even if it is in the folder it cannot be accessed by CFX. Apart from this, I am out of ideas. |
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April 5, 2017, 04:09 |
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#3 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
Rep Power: 14 |
I think its the problem with the configuration which I dont know why !!
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April 5, 2017, 04:24 |
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#4 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
How should WE know if you don't share your config?
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April 5, 2017, 04:50 |
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#5 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
Rep Power: 14 |
Well I myself is not sure where I went wrong.. So I am not sure what I should share with you ? The .ccl file ?
I basically use the Execution Control Tab in CFX Pre and then there in the Defenition file I load my already generated def file and then In the intial value tab I use the .res file and then over write the def file again. and then generate the .ccl file for my simulation. once this is done I just use my script to run the case in cluster and then I get this error. Basically the code looks for the file on my local desktop folder where I created this def file and its not running saying the file doesnt exist. As my cluster cant get acess to my local computer. so it wornt find that path for sure. This was the issue. So now instead I am using the -ini option where I load the .res file on the script. and it works. But my double precision is not activated. |
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April 5, 2017, 05:57 |
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#6 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
Rep Power: 14 |
So Maxim
I found the solution for it. Its becoz I am making the def file on my desktop and copying it to my HPC machine. Also my ccl file. And what happens is the script or the ccl file has the information about the def file and it saves the path of my local machine where the def file is located. So once copied to my cluster eventhough my def file is in the same folder as ccl file in cluster while running it looks for the path where def file is and it cant find that path as its totally different machine. So it says doesnt exist. So I changed the ccl file by editing it and removed the path instead just gave the .def file name and now it works. Thanks. |
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April 5, 2017, 06:04 |
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#7 |
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
There you go
You won't need the Execution Control Tab if you work with a *.ccl-config anyway / define your -ini/-cont-from-file anyway in your command line... double precision can be activated too when starting the job by adding "-double" |
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April 5, 2017, 06:07 |
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#8 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
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But thats what I also thought !!
unfortunately eventhough when I have given -double on the script its not working . It says double is off So I thought I will force it by double precision on the execution control so that the ccl file will have it |
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April 5, 2017, 06:16 |
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#9 | ||
Senior Member
Maxim
Join Date: Aug 2015
Location: Germany
Posts: 415
Rep Power: 13 |
Where does it say double is off?
It is a known "bug" that the out-file says at first: Quote:
Quote:
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April 5, 2017, 07:16 |
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#10 |
Senior Member
Join Date: Mar 2013
Location: Germany
Posts: 357
Rep Power: 14 |
Ok I never tried it !! But when I switch on the double precision using executable file that
+--------------------------------------------------------------------+ | | | CFX Command Language Upgrade | | | +--------------------------------------------------------------------+ Added /SIMULATION CONTROL/EXECUTION CONTROL/EXECUTABLE SELECTION/Double Precision = Off. is not showing . That means double precision is on and its working . So am not sure. But I will try the way you suggested. Apparently the simulation which already finished doesnt show Double Precision = Yes neither in .ccl nor in .out file |
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June 4, 2017, 03:35 |
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#11 |
Senior Member
raunak jung pandey
Join Date: Jun 2016
Posts: 102
Rep Power: 10 |
You can try running your simulations in configuration
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