SU2 Parallel Solution Restart Problem

akaybayat · February 10, 2019, 03:46

Hi everyone;
I have a problem about restart solution of SU2 in parallel mode. Firstly, i run my problem with 1000 iteration in parallel mode. Then i try to restart solution in parallel mode and program gave below error.
su2_parallel_error.JPG

If i choose serial mode, solution continues. Do you have any idea about this problm?

blackye_25 · June 22, 2019, 12:00

Hey!

I had the same error while doing unconstrained adjoint optimization of an airfoil. SU2_CFD somehow recognizes the end of the simulation (either convergence criteria with residual, cauchy or just iteration limit, I could reproduce the same behaviour) as an error and aborts and does not write the solution_flow.dat nor the restart_flow.dat, although in the logfile a nice convergence can be observed (at least in my case). The problem was, as I found after spending '"some" time on the problem, that I generated the mesh in Gmsh by fitting a spline on the contour points of the airfoil. Only lines about the contour then worked fine. The problem is very likely with the mesh or the way your mesh is defined.

February 10, 2019, 03:46	SU2 Parallel Solution Restart Problem	#1
akaybayat New Member akay bayat Join Date: Dec 2018 Posts: 8 Rep Power: 7	Hi everyone; I have a problem about restart solution of SU2 in parallel mode. Firstly, i run my problem with 1000 iteration in parallel mode. Then i try to restart solution in parallel mode and program gave below error. su2_parallel_error.JPG If i choose serial mode, solution continues. Do you have any idea about this problm?

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June 22, 2019, 12:00		#2
blackye_25 New Member Join Date: Jun 2019 Posts: 1 Rep Power: 0	Hey! I had the same error while doing unconstrained adjoint optimization of an airfoil. SU2_CFD somehow recognizes the end of the simulation (either convergence criteria with residual, cauchy or just iteration limit, I could reproduce the same behaviour) as an error and aborts and does not write the solution_flow.dat nor the restart_flow.dat, although in the logfile a nice convergence can be observed (at least in my case). The problem was, as I found after spending '"some" time on the problem, that I generated the mesh in Gmsh by fitting a spline on the contour points of the airfoil. Only lines about the contour then worked fine. The problem is very likely with the mesh or the way your mesh is defined.