Segmentation fault when setting MPI transportation method

Created by: khou2020

I got segmentation fault calling adios2_open if i set transportation library tpo MPI. Anyone klnow what happened?

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ad = adios2_init(MPI_COMM_WORLD, adios2_debug_mode_off);  

io = adios2_declare_io(ad, "subarray");  

err = adios2_set_engine(io, "BPFile"); 

err = adios2_add_transport(&tid, io, "File"); 

err = adios2_set_transport_parameter(io, tid, "Library", "MPI"); 

eng = adios2_open(io, fname, adios2_mode_write);    // => Segmentation fault

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