selection of RESTART_SOL

lqliang1222 · July 24, 2024, 00:49

Hello,
I have a question about the selection of RESTART_SOL . I have found that some cases are either YES or NO. I want to know the impact of choosing YES or NO on the calculation process and results, because some of my configuration files filled in YES may cause errors during runtime, but this situation does not occur when choosing NO.

bigfootedrockmidget · July 24, 2024, 06:25

SU2 can write a file containing the current solution variables, using

Code:

OUTPUT_FILES= RESTART

the filename is given by

Code:

RESTART_FILENAME= restart

You can restart from this solution using

Code:

RESTART_SOL= YES

The file that is used is given by

Code:

SOLUTION_FILENAME= solution

So if you have previously saved restart.dat, you can rename that file solution.dat and restart from that file to speed up the time to reach convergence.

You can also restart using a different mesh, SU2 will interpolate the solution onto the new mesh using a nearest neighbor approach.

July 24, 2024, 00:49	selection of RESTART_SOL	#1
lqliang1222 New Member 李以乐 Join Date: Apr 2024 Posts: 19 Rep Power: 3	Hello, I have a question about the selection of RESTART_SOL . I have found that some cases are either YES or NO. I want to know the impact of choosing YES or NO on the calculation process and results, because some of my configuration files filled in YES may cause errors during runtime, but this situation does not occur when choosing NO.

July 24, 2024, 06:25		#2
bigfootedrockmidget Senior Member bigfoot Join Date: Dec 2011 Location: Netherlands Posts: 816 Rep Power: 22	SU2 can write a file containing the current solution variables, using Code: OUTPUT_FILES= RESTART the filename is given by Code: RESTART_FILENAME= restart You can restart from this solution using Code: RESTART_SOL= YES The file that is used is given by Code: SOLUTION_FILENAME= solution So if you have previously saved restart.dat, you can rename that file solution.dat and restart from that file to speed up the time to reach convergence. You can also restart using a different mesh, SU2 will interpolate the solution onto the new mesh using a nearest neighbor approach. lqliang1222 likes this.

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