I would like to use SparseDirectMumps to solve the linear system
<https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fdealii%2Fcode-gallery%2Fblob%2Fmaster%2FQuasi_static_Finite_strain_Compressible_Elasticity%2Fcook_membrane.cc%23L2171&data=04%7C01%7CWolfgang.Bangerth%40colostate.edu%7C632a418808d74ae65e4e08d8ba51cd69%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C637464207804492937%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3quCIk6VKgjyi7Zuln4b7yBND9kqpixCRnmmH830xMA%3D&reserved=0>.
The documentation tells that I would need an mpi_communicator object to use
this solver. Since my code is running on a single machine in serial (only the
assembly is hyper-threaded), how do I need to initialize mpi_communicator?
Just use MPI_COMM_SELF in all places where you need to pass a communicator.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
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