Restarting a run from .trn files What variables do I need?)

Badi · July 25, 2013, 06:10

Hello.
I have a little problem regarding a pretty big simulation. It crashed after 930 Timesteps. Unfortunatly it didnt create a backup file. What variables do I need to restart the run from the current timestep?
In Output Controle I selected a bunch of variables and I included the mesh what I thought is enough.
I can load the .trn files into CFD Post and everything looks quite good.

Can I simply take the last .trn file as solver input file? Do I have to make the same .trn file as initial value specification?

edit: the filename is just xxx.trn not xxx_full.trn
=> Is there a way to get full trn files with just selcted variables or should I go for "standart" output with additional variables selected?

ghorrocks · July 25, 2013, 09:01

You need a trn file with the mesh to restart. You cannot restart from a trn file without mesh. Alternately you can restart from a backup file or a normal res file.

beyonder1 · December 29, 2017, 23:13

Hi,
I have gone through most of the posts regarding this but couldn't find relevant to me.

I have a moving mesh case and I am storing backup file to restart the run. As soon as I start the run, it throws an error 'locating data subset failed'. Is there something else that needs to be done in moving mesh case.
P.S. - I am using Use Mesh from- Initial Value option.

Thanks

July 25, 2013, 06:10	Restarting a run from .trn files What variables do I need?)	#1
Badi Member Sebastian Join Date: Apr 2013 Posts: 31 Rep Power: 13	Hello. I have a little problem regarding a pretty big simulation. It crashed after 930 Timesteps. Unfortunatly it didnt create a backup file. What variables do I need to restart the run from the current timestep? In Output Controle I selected a bunch of variables and I included the mesh what I thought is enough. I can load the .trn files into CFD Post and everything looks quite good. Can I simply take the last .trn file as solver input file? Do I have to make the same .trn file as initial value specification? edit: the filename is just xxx.trn not xxx_full.trn => Is there a way to get full trn files with just selcted variables or should I go for "standart" output with additional variables selected?

December 29, 2017, 23:13	Restart a CFX run with backup file in a moving mesh case	#3
beyonder1 Member beyonder Join Date: May 2015 Posts: 67 Rep Power: 11	Hi, I have gone through most of the posts regarding this but couldn't find relevant to me. I have a moving mesh case and I am storing backup file to restart the run. As soon as I start the run, it throws an error 'locating data subset failed'. Is there something else that needs to be done in moving mesh case. P.S. - I am using Use Mesh from- Initial Value option. Thanks

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July 25, 2013, 09:01		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	You need a trn file with the mesh to restart. You cannot restart from a trn file without mesh. Alternately you can restart from a backup file or a normal res file.