mpb-mpi fails to execute find-k about mpb HOT 3 OPEN

I meet the same error return, except "mpirun -np 1 mpb-mpi xxx.ctl" is also not running. But "mpb xxx.ctl" has the correct result. I guess that is because we have different mpi implementation.

My system:

1. Arch yaourt automatically installed mpb-mpi
2. mpb-mpi --version:
   mpb_mpi 1.5, Copyright (C) 1999-2012, MIT
   Using libctl 3.2.2 and Guile 2.0.13.
3. Arch Linux - Linux 4.8.2
4. mpirun --version
   mpirun (Open MPI) 1.10.4
5. FFTW version 3.3.4 build with MPI support
6. gcc --version
   gcc (GCC) 6.2.1 20160830

from mpb.

Another try on Ubuntu 16.04 gives same result:

1. mpb-mpi --version:
   mpb_mpi 1.5, Copyright (C) 1999-2012, MIT
   Using libctl 3.2.2 and Guile 2.0.11.
2. Ubuntu 16.04 xenial
3. mpirun --version
   mpirun (Open MPI) 1.10.2
4. fftw3 and libfftw3 packages installed
5. gcc --version
   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 20160609
   Copyright (C) 2015 Free Software Foundation, Inc.

from mpb.

Hi,
Sorry for digging this up, but I have the exact same issue.

mpb-mpi --version
mpb_mpi 1.10.0, Copyright (C) 1999-2012, MIT
Using libctl 4.5.0 and Guile 2.0.11.

Scientific Linux 7.5

mpirun --version
mpirun (Open MPI) 4.0.2

fftw3.3.8

gcc --version
gcc (GCC) 9.2.0
Copyright (C) 2019 Free Software Foundation, Inc.

And I have the same error with an Intel based build

Thank you for your time

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