Essential Information about Flux 2024.1

Essential information about Flux 2024.1
In order to use the version, you need:
  • Altair Units License file Version 24.0
  • Altair License Manager (ALM) Version 15.5.1
  • Altair License Utility (ALMUtil) Version 15.5.1
Flux 2024.1 is available for Windows and Linux OS:
  • Windows 10 Professional
  • Windows 11 Professional
  • Red Hat Enterprise Linux and Oracle 8.4
Avertissement : 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 2024.1 takes into account the feedback from several users, and around 29 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 2021.12.1)

Avertissement : For some older system configurations, Intel MPI might require defining explicitly the communication fabric. To do so, please define the environment variable I_MPI_FABRICS=shm for a single node solving or I_MPI_FABRICS=shm:tcp or shm:ofi for a multiple node solving. More details can be found on this page: https://www.intel.com/content/www/us/en/docs/mpi-library/developer-reference-linux/2021-13/communication-fabrics-control.html
Minimum memory required:
  • For Flux 2D: 8 GB of RAM
  • For Flux 3D, Skew and PEEC: 12 GB of RAM