[abdul099]

Do you try to mesh parallel? This could cause the process to hang. Better to do meshing in serial.
In most cases I had before, the volume cells to faces was about 10, therefore I would expect your mesh to have something roughly around 8 million faces (+- some millions). That shouldn't take more than one or two hours on your machine as long as it doesn't need to swap. When it needs to swap, it should be finished at least within a day, there can't be much memory missing. So you don't need to keep the process running for three days. When there's no change in the output window or the output file for more than two or three hours, I would just kill the job without getting a bad conscience.