Issue running simulation

Question

slot_antenna.cfx

Hi,

I created a slot antenna in Feko and am having trouble running it. What do I do? This is the message I get:

NOTE: Running PREFEKO since file "slot_antenna.fek" not found

Altair Feko - PREFEKO Version 2026-5018 from 2025-11-24 [Release/2026.0.0 @3b0d124c5395 ]

Creating file slot_antenna.fek using 4 threads, please be patient ...

0.054 seconds elapsed time

0.143 seconds total CPU time

File slot_antenna.fek has been created:

1 metallic wire segments in free space (of which 1 are curvilinear)

2120 metallic triangles in free space

4576 triangles for the surface of a dielectric

Abort(473032335) on node 0 (rank 0 in comm 0): Fatal error in internal_Init_thread: Other MPI error, error stack:

internal_Init_thread(39919)...........: MPI_Init_thread(argc=0000000000000000, argv=0000000000000000, required=3, provided=00000075410FF590) failed

MPII_Init_thread(118).................:

MPID_Init(1731).......................:

MPIDI_SHMI_mpi_init_hook(27)..........:

MPIDI_POSIX_mpi_init_hook(184)........:

MPIDI_POSIX_eager_init_transport(2916):

MPIDU_Init_shm_alloc(151).............: unable to allocate shared memory

Jaehoon · Answer

You might have some answer from AI.

(One quick solution is to re-run the original installer.)

Best regards,

Jaehoon

fvain1999 · Answer

I am trying to uninstall and there's this error. Please, how to I fix it.

Jaehoon · Answer

Hello @fvain1999

I must've misunderstood your error.

Could you check if you have the same error when running any other Feko model for testing?

* If you have the same error, please run the simulation with the debug mode activated and share the debug message here.
* If you don't have the same error, please run your slot_antenna.cfx with the debug model and share the debug message as well as the Feko model with me (The model you attached here is not available).

You can activate the debug mode by clicking on "Component Launch Options"

… Please go to Feko Solver tab and add -d to the Advanced option as shown below.

Best regards,

Jaehoon

PS) If Altair community is out of service, please directly send emails to me, jaehoon@altair.com.