Reply To: Mathematical model generation stuck at 10%

[Pedram Samadian]

Hi,

Thanks for the info. The message indicates that LS-DYNA is unable to allocate enough memory for the mentioned array either due to a shortage of available memory or improper allocation settings. Please check out the following possible solutions to address this error:

1. Increase Memory Allocation:

   • Adjust the memory in the LS-DYNA input deck to ensure that sufficient memory is available for allocation. For further information, please check out the *keword section in the LS-DYNA User Manual Vol. 1 (LSDYNA Manuals).

2. Optimize Model Size and Complexity:

   • Simplify the model if possible by reducing the number of elements, contacts, or parts that may be contributing to excessive memory usage.

3. Check Available System Memory:

   • Ensure that your system has enough RAM to support the model's requirements. LS-DYNA will try to allocate memory based on the model setup, and if your system’s physical memory is limited, it could lead to this error.
   • If running on a cluster or HPC system, verify with the cluster settings or administrators that enough memory is allocated per core or job.

4. Run a Test with a Smaller Model:

   • Try running a smaller version of your model (e.g., with fewer elements or a shorter simulation time) to confirm that the memory allocation is working correctly. This can help identify if the issue is purely memory-related or possibly due to model complexity.

5. Review Version-Specific Issues:

   • Older versions of LS-DYNA may have bugs or limitations related to memory allocation. You can try using the latest version.I hope this information helps you resolve the issue.

Thanks,

Pedram