[Andrea23]

Hi,

I'm using OpenFoam 7 on an Ubuntu shell on windows 10 ( this is the shell i'm using: https://www.microsoft.com/it-it/p/ub...ot:overviewtab )

I'm running a simplefoam simulation on a domain of 6 milion elements (no prism layer and all tetrahedral element), after 70-80 iteration openfoam stops without giving an error messagge:

Time = 81

smoothSolver: Solving for Ux, Initial residual = 9.33724e-11, Final residual = 9.33724e-11, No Iterations 0
smoothSolver: Solving for Uy, Initial residual = 2.25473e-10, Final residual = 2.25473e-10, No Iterations 0
smoothSolver: Solving for Uz, Initial residual = 1.72562e-09, Final residual = 1.72562e-09, No Iterations 0

these are the last lines before the system line to insert a command appeared.

I have checked the resources use, during the simulation, and between 4-6 GB of ram were used by open foam, 14 gb are in standy, 10 were free, and the other were in use by windows and other minor programs, for a total of 32GB.
For a simulation of this type 4-6 GB of ram is the correct necessity or the ubuntu subsystem is limited in the resources use and that is why openfoam "crashed", if is limited do you know of to remove the limit? I did a research on google but i didn't find the answer.

[sbaffini]

This seems to be your case:

https://answers.microsoft.com/en-us/...c-c0032762166d

However, all the cases I see mentioning your problem are from 2016... I bought a Windows 10 machine (and started using WSL) in August 2019 and I don't have this problem (WSL can see the whole memory of the machine). I haven't used it with OpenFOAM specifically, but with a similar package with even higher memory requirements (including MPI, PETSc, Metis, etc.), so it is pretty sure I don't have the issue.

Maybe you need to update your machine.

In any case, I would also check in the specific OF forum here, I'm pretty sure there must be someone that already faced your problem

[Andrea23]

Originally Posted by sbaffini

This seems to be your case:

https://answers.microsoft.com/en-us/...c-c0032762166d

However, all the cases I see mentioning your problem are from 2016... I bought a Windows 10 machine (and started using WSL) in August 2019 and I don't have this problem (WSL can see the whole memory of the machine). I haven't used it with OpenFOAM specifically, but with a similar package with even higher memory requirements (including MPI, PETSc, Metis, etc.), so it is pretty sure I don't have the issue.

Maybe you need to update your machine.

In any case, I would also check in the specific OF forum here, I'm pretty sure there must be someone that already faced your problem

Thanks for your answer, in that topic I found the comand to check ram in use and ubuntu read all 32 gb so i think it has access to all of them. I run another simulation using all processors and after free standby ram, now it seems is working fine after I have improved the model too. Probably it was not a hardware problem, if I have more problem I will ask in dedicated section.