Learning Forum

[Lee]

Hi everyone,

I am doing a simulation in fluent(including a UDF), everything is ok on my personal computer, but when I put the case on HPC(1 node with 128 processes), once I initialized it, the error popped out.

Some information about settings:

1.UDF is included, but the UDF can be successfully compiled and loaded on HPC;

2.Mesh number: about 1.5 million

3.k-e model and mutiphase(2 phase, oil to vapor, cavitation)

4. Ansys verion 2021R1

Details about the errors are shown in the Figure 1, 2 and 3.

  I have no idea what causes this, and how to solve it?

Regards

Figure 1

Figure 2

Figure 3

 

[George Karnos]

Are you running interactively with GUI or batch?
What happen if you try to run with fewer cores?
How many cores are you using on your machine that runs?

[MangeshANSYS]

try the following options one at a time 1. use -mpi=intel2018 2. use -mpi=intel2018 -pib 3. use -mpi=openmpi