[CIG-SEISMO] SPECFEM3D - "error in computing normal for receivers"

[Shahar Barak]

Hi,

I want to have my stations pinned to the surface of the mesh when running
SPECFEM3D.
To do that I set RECVS_CAN_BE_BURIED_EXT_MESH = .false. in constants.h
However, when I run the job with that flag I get the following error:

error in computing normal for receivers.

I've tried switching b/w EXT_MESH_RECV_NORMAL = .true. and
EXT_MESH_RECV_NORMAL = .false., but I still get the same error.
My mesh has flat topography. It's is just a homogenous simple brick
Any ideas what am I doing wrong?

Thanks,

Shahar Barak
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