[POSThu]

The image links are

https://ibb.co/9ywgXDD

https://ibb.co/sH0Zr3h

Thank you.

[POSThu]

I think it should be the turbulent Prandtl number, and I will try again.

Thank you.

[POSThu]

Your work is so great! Wish your job sucessful.
I have chosen the OpenMPI mode, but the efficiency is only increased around 25%. I run OpenLB in cygwin on Win10, I am not sure wheter this has a effect.
Besides, the paralle achievenment in cygwin on Windows system can not realized according to the technical report “https://www.openlb.net/wp-content/uploads/2020/11/olb-tr4.pdf”, I think that’s because the modification of the latest openmpi package in cygwin, and I had done some modifications, otherwise there will be an error ouputed in the console.
I hope you can further guide me to achieve the efficiency increase, thank you.

Furthermore, could you kindly tell me when the next version of OpenLb would be released? Very expect! 🙂

Best Regards,
mengqiang.

[POSThu]

Dear Adrian,

I wonder whether there is an available version of OpenLB to simulation on GPUs? I have tried the paralle simulation on CPUs, but the increase of efficiency is not significant (450s by serial and 350s by paralle of 3 cores). Although that may be because my simulation case is not very complex and the number of cores of my CPU is low. I want to achieve a real-time simulation by OpenLB, just like this paper: http://dx.doi.org/10.1016/j.buildenv.2017.08.048. As you can see, the efficiency of their model is very high. Is that possible to achieve that by OpenLB? Thanks.

Best Regards,
mengqiang

[POSThu]

Hi Markus,

I wonder whether the latest OpenLB supports the GPU computation now? I want to further accelerate the simulation process to achieve real-time simulation of airflow field.

Best Regards,
mengqiang

[POSThu]

Dear Adrian,

In some example cases, there is a command named “SuperLatticeRefinementMetricKnudsen3D”, isn’t it a method to do the grid refinement?

Best Regards,
mengqiang

[Author]

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