Dear Deal.II community, I'm programming on modifying step 35 using Parallel computing with multiple processors using distributed memory. In tutorials, step 35 used the gradient operator to act from the pressure space into the velocity space. And in diffusion_step and projection_step, the gradient operator was used.
But when I want to modify the program using parallel computing, the diffusion_step has to be something like assemble_system which consists of cell_matrix and cell_rhs, as well as projection_step. I finished my modification but the results seems totally wrong. I think maybe the assemble_system has something wrong. And my code is shown below [image: screenshot.png] Additionally, the cell_rhs_vel is made of the information about old velocity(code about cell_rhs_vel shown at the top of the figure) and also grad pressure(the code about cell_rhs_vel shown at the bottom of the figure) , just like tutorial step35. So could you please help me find the problem within my code to correctly calculate the gradient term in cell_rhs_vel? Any advice and corrections will be appreciated! Thank you very much. Best, Toddy -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/0c3f5ea3-4143-4c3c-bfbf-a4aaca2f375cn%40googlegroups.com.
