Since version 2026, Flux 3D and Flux PEEC are no longer available.

Please use SimLab to create a new 3D project or to import an existing Flux 3D project.

Please use SimLab to create a new PEEC project (not possible to import an existing Flux PEEC project).

/!\ Documentation updates are in progress – some mentions of 3D may still appear.

Essential Information about Flux 2024

Essential information about Flux 2024
In order to use the version, you need:
  • Altair Units License file Version 24.0
  • Altair License Manager (ALM) Version 15.5.0
  • Altair License Utility (ALMUtil) Version 15.5.0
Flux 2024 is available for Windows and Linux OS:
  • Windows 10 Professional
  • Windows 11 Professional
  • Red Hat Enterprise Linux and Oracle 8.4
  • SUSE Linux Enterprise Server 15 SP3
Warning: In Flux PEEC, the Linux distribution does not support the MUMPS LU Preconditioner of the Compression solver for inductive computations. Please use a different Linux distribution or another preconditioner.

The Linux version is qualified with the Gnome Classic with X11 display server. It is highly advisable to use the Gnome Classic with X11 display server to run Flux on Linux.

Flux 2024 takes into account the feedback from several users, and around 18 customer issues have been fixed in this version.
Distributed computing with MPI is available in Flux for Windows and Linux and can be used with PBS. However, qualification on Windows cluster connected with InfiniBand has not been done and Linux clusters are highly recommended for parallel computing.

(Supported version: Intel MPI to 2021.8)

Minimum memory required:
  • For Flux 2D: 8 GB of RAM
  • For Flux 3D, Skew and PEEC: 12 GB of RAM