,I am not near my laptop now. I have the graph of the lift coefficient through 1 second of the flow with 1 node and 2 nodes. (8s to 9s with 2 nodes). As you can see the second one is noisy.
another difference between them is that the first case was prepared using in-house HPC with 20*2 cores. But the second case was prepared using my laptop (6 cores). Can it be a problem? because I should set the number of cores on my laptop to 80 to be able to submit the job on HPC. Then other 80-12 cores data will be run on memory, right?
These noises are not effective in mean values; the will be problems in RMSE graphs.