Learning Forum

[lei2019]

I use 128 cores to read the mesh, and I got the error.

There is not error when I generated the mesh in ICEM.

the mesh file is about 750 MB.

MPI Option Selected: intel

Selected system interconnect: InfiniBand

---------------------------------------------------------------------------------------------

 4120188 nodes.

 4074265 hexahedral cells, zone 17.

12177480 quadrilateral interior faces, zone 18.

  1805 quadrilateral velocity-inlet faces, zone 19.

  3344 quadrilateral velocity-inlet faces, zone 20.

   836 quadrilateral velocity-inlet faces, zone 21.

  11324 quadrilateral wall faces, zone 22.

  5548 quadrilateral wall faces, zone 23.

  5548 quadrilateral wall faces, zone 24.

   836 quadrilateral wall faces, zone 25.

  7524 quadrilateral wall faces, zone 26.

  3800 quadrilateral wall faces, zone 27.

  15048 quadrilateral wall faces, zone 28.

  6821 quadrilateral pressure-outlet faces, zone 29.

  11324 quadrilateral wall faces, zone 30.

  11324 quadrilateral wall faces, zone 31.

  5548 quadrilateral wall faces, zone 32.

Building...

   mesh

auto partitioning mesh by Metis (fast),

distributing mesh

parts..................................................,

faces..................................................,

nodes..................................................,

cells..................................................,

    inter-node communication reduction using architecture-aware remapping: 72%

    bandwidth reduction using Reverse Cuthill-McKee: 31781/988 = 32.167

    Clearing partially read grid.

Error at Node 3: Build Grid: Aborted due to critical error.

Error at host: Build Grid: Aborted due to critical error.

Error at Node 1: Build Grid: Aborted due to critical error.

Error at Node 0: Build Grid: Aborted due to critical error.

Error at Node 5: Build Grid: Aborted due to critical error.

Error at Node 7: Build Grid: Aborted due to critical error.

Error at Node 9: Build Grid: Aborted due to critical error.

Error at Node 11: Build Grid: Aborted due to critical error.

Error at Node 2: Build Grid: Aborted due to critical error.

Error at Node 4: Build Grid: Aborted due to critical error.

Error at Node 6: Build Grid: Aborted due to critical error.

Error at Node 8: Build Grid: Aborted due to critical error.

Error at Node 10: Build Grid: Aborted due to critical error.

Error at Node 87: Build Grid: Aborted due to critical error.

Error at Node 16: Build Grid: Aborted due to critical error.

Error at Node 67: Build Grid: Aborted due to critical error.

Error at Node 95: Build Grid: Aborted due to critical error.

Error at Node 17: Build Grid: Aborted due to critical error.

Error at Node 68: Build Grid: Aborted due to critical error.

[Rob]

I suspect there's a corrupt section in the mesh. As you only have around 4M cells try with just one core as a check and read the mesh into Fluent Meshing as that can give us a more diagnostic error message.

[lei2019]

I use a single core to read the mesh. if there is a hole, the error shouldn't be like this.

[lei2019]

I need to check that location indicating in the error.

[Rob]

Have a look at the geometry and mesh in that region. Something has got twisted or a node is being shared that shouldn't be.