This document describes best practices for a new, state-of-the-art iterative linear equation solver in Abaqus/Standard and the 3DEXPERIENCE structural simulation apps.

The new solution capability is based on an original, unpublished proprietary algorithm developed for reliability and efficiency. A scalable parallel implementation results in a very fast, low memory consumption solver well suited for very large models.

Together with the high performance modeling, meshing, and visualization capabilities of the 3DEXPERIENCE platform, this technology empowers structural and mechanical analysts with a new tool to handle large, real-world simulation models with over 100 million degrees of freedom.

The iterative solver is best suited to models with certain characteristics. This Best Practices document provides usage guidelines and strategies to help you best use this technology.

This document is applicable to all releases from 3DEXPERIENCE R2022x and above.

Prerequisites and recommendations: To take full advantage of this document, you must be familiar with the SIMULIA product Abaqus.

Target audience: Structural and Mechanical Analysts that develop large, computationally intensive finite element models.

In this Best Practice, you will learn about:

• The model types which are best suited for the iterative solver.
• How to access the iterative solver on the 3DEXPERIENCE platform.
• Optimal settings for launching and running the iterative solver.

Looking for more such Best Practices? Get them HERE​​​​​​​.

Please note that you will need a DS Passport account with appropriate user role to access Best Practice Documents. Please contact your Dassault Systèmes representative for issues related to your account.

Thanks Tao QU, ​​​​​Vladimir BELSKY, @MK and @DP  for helping build this document and reviewing it. We would be happy to receive your feedback related to this content as well as any suggestions to improve it further! Wish you happy reading.