Dear all,
I’m trying to solve the thermal diffusion and Stokes flow problem simultaneously, similar to the step-32. I opened two threads to solve thermal diffusion and Stokes equations during solving by linear solvers (the former is solved by CG solver and the latter is solved by GMRES solver) after assembling the matrices and RHS. I encountered a problem when I using parallel computing in combination with distributed and shared memory. The code is like following: assemble_thermal_diffusion_system(); assemble_stokes_flow_system (); Threads::Task<void> task = Threads::new_task (&Problem<dim>::solve_thermal_diffsuion, *this); solve_stokes_flow (); task.join(); The program ran successfully with single process and showed a high performance of thread parallel computing, unfortunately, when I ran the program using several processes I got following error. I have googled this error and can not find any solution. Could someone help me? Thanks in advance! [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. [warn] opal_libevent2021_event_base_loop: reentrant invocation. Only one event_base_loop can run on each event_base at once. Thank you very much. Best, Jack -- 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. For more options, visit https://groups.google.com/d/optout.
