# VTK 9.3.0 MPI Initializing Error Intel Compilers 2024

**URL:** https://discourse.vtk.org/t/vtk-9-3-0-mpi-initializing-error-intel-compilers-2024/14193
**Category:** Support
**Created:** [July 9, 2024, 1:34pm UTC](https://discourse.vtk.org/t/vtk-9-3-0-mpi-initializing-error-intel-compilers-2024/14193 "2024-07-09T13:34:32Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![hveng](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/h/f475e1/32.png) [@hveng](https://discourse.vtk.org/u/hveng)
#### Post date: [July 9, 2024, 1:34pm UTC](https://discourse.vtk.org/t/vtk-9-3-0-mpi-initializing-error-intel-compilers-2024/14193/1 "2024-07-09T13:34:32Z")

</div>

Dear VTK developers,

we have encountered problems with the MPI InitializeCommunicator calls in VTK 9.3.0 when compiling with the newest Intel compilers (`l_HPCKit_p_2024.2.0.635_offline.sh`).

The building and installation of VTK worked without errors.

The error appears in the functions `this->InitializeCommunicator(vtkMPICommunicator::GetWorldCommunicator());` in line 135 of `vtkMPIController.cxx` and, respectively, `MPI_Comm_set_errhandler(MPI_COMM_WORLD, errhandler);` in line 573 of `vtkMPICommunicator.cxx`.

The result is a complete crash of the program. To reproduce, run test `vtkParallelMPICxxTests-MPI` No. 1 (`MPIController`).

We reproduced the problem with various different MPI implementations:

- Stock MPI, installed through `apt`, on Ubuntu 22 (Open MPI 4.1.2)
- The MPI installation that comes with the intel compilers (Intel(R) MPI Library for Linux\* OS, Version 2021.13 Build 20240515 (id: df72937))
- Standalone compilation of Open MPI using the Intel OneAPI compilers (Open MPI 4.0.4)

When compiling using GNU compilers (gcc 12.3.0 + Open MPI 4.1.2 (apt)), everything works fine.

Attached is a excerpt of the CMakeCache.txt, from when we tried to compile with Open MPI 4.0.4, if that is of any help:

```auto
BUILD_SHARED_LIBS:BOOL=ON
CMAKE_BUILD_TYPE:STRING=Debug
VTK_GROUP_ENABLE_MPI:STRING=DEFAULT
VTK_USE_MPI:BOOL=ON
CMAKE_CXX_COMPILER:FILEPATH=/opt/intel/oneapi/compiler/2024.2/bin/icpx
CMAKE_C_COMPILER:FILEPATH=/opt/intel/oneapi/compiler/2024.2/bin/icx
MPIEXEC_EXECUTABLE:FILEPATH=<path-to-MPI>/openmpi-4.0.4/install-intel-debug/bin/mpiexec
MPI_C_COMPILER:FILEPATH=<path-to-MPI>/openmpi-4.0.4/install-intel-debug/bin/mpicc
MPI_C_COMPILER_INCLUDE_DIRS:STRING=<path-to-MPI>/openmpi-4.0.4/install-intel-debug/include
MPI_C_HEADER_DIR:PATH=<path-to-MPI>/openmpi-4.0.4/install-intel-debug/include
MPI_C_LINK_FLAGS:STRING=-Wl,-rpath -Wl,<path-to-MPI>/openmpi-4.0.4/install-intel-debug/lib -Wl,--enable-new-dtags
MPI_mpi_LIBRARY:FILEPATH=<path-to-MPI>/openmpi-4.0.4/install-intel-debug/lib/libmpi.so

```

Any help is appreciated.  
Thanks a lot in advance.