Learning Forum

[1375939052]

The calculation time grows during the stress calculation, and eventually an error occurs and the calculation fails. The error message is as follows“An error has occurred in the Sparse Matrix Solver used by the PCG solver while performing the backsubstitution. Error code = 17. Please send the data leading to this operation to your technical support provider, as this will allow ANSYS, Inc to improve the program.”Is there a solution or what help should I look at?

[ErKo]

 

The error you’re encountering could be perhaps (not for sure) related to the Distributed Sparse (DSP) solver, which is used by the PCG solver when forming the preconditioner. This error message indicates a failure in saving the solver workspace, possibly due to an ill-conditioned matrix. One potential workaround is to force the DSP solver from the beginning instead of using the PCG solver. Say using the EQSLV command (see help manual)

https://ansyskm.ansys.com/forums/topic/what-causes-the-error-message-an-error-has-occurred-in-the-distributed-sparse-matrix-solver-used-by-the-pcg-solver-while-saving-the-solver-workspace-data/

 

[1375939052]

Thank you for your answer. Is there a specific solution to this, or what parts of the reference manual should I focus on viewing?