Dear Prof. Wolgang, Actually, I am not familiar with candi at all. I am using WSL on Windows 10 and the lib works perfectly until I have to install Trilinos (for step-17 and later use). Should I uninstall OpenMPI or MPICH instead? According to this link <https://github.com/dealii/candi/tree/dealii-9.3/deal.II-toolchain/packages>, I am not sure whether candi will help to install the lib with MPI or not since I do not see that on the list.
Regards, Thang Pham. Vào lúc 21:41:44 UTC+9 ngày Thứ Bảy, 4 tháng 9, 2021, Wolfgang Bangerth đã viết: > On 9/3/21 8:58 PM, Thang W Pham wrote: > > > > And then when I test the library with step-17 tutorial, here is the > error: > > PETSc Error --- Application was linked against both OpenMPI and MPICH > based > > MPI libraries and will not run correctly ..... > > The description of the error provided by PETSc is "MPI library at > runtime is > > not compatible with MPI used at compile time". > > The numerical value of the original error code is 87. > > > > I think I need some steps to make deal.ii configure MPI properly but I > cannot > > figure it out. > > This is the error message that matters: You are compiling PETSc with one > MPI > library, but deal.II with another. This can not work. In fact, if you have > both installed on your system, I would suggest removing one before the > whole > installation procedure just to avoid this exact situation. > > In general, if you can, it's probably worth using a script such as candi > instead of trying to install everything by hand. > > Best > Wolfgang > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: bang...@colostate.edu > www: http://www.math.colostate.edu/~bangerth/ > > -- 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/f28937db-a2df-4c1c-9c90-91e227a0b8c3n%40googlegroups.com.
