Essential Information about Flux 2021.2
| Essential information about Flux 2021.2 |
|---|
In order to use an Altair Units license, you need:
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Flux 2021.2 is available for Windows and Linux
OS:
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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 2021.2 takes into account the feedback from several users, and around 20 customer issues have been fixed in this version. |
| The Dynamic memory management is available via an option in
the Supervisor since the release Flux 2020.1. Warning: The dynamic memory working process (with memory
allocation/releasing) has a light impact on the performances
(impact more noticeable with parallel computing). If you notice
an abnormal execution time with dynamic memory (and not in
static memory), you can contact the support. The default memory
mode is still set to User but we
encourage you to use the Dynamic mode extensively and
give us feedback (except with parallel computing, we
advise you to use User mode). We are continuing our work
to improve performances, in particular to improve the use of
dynamic memory with parallel computing for future
versions.
Warning: All Flux algorithms work now with dynamic
memory, except Delaunay mesher (not default mesher). Only
MeshGems mesher is available in Dynamic
memory. If user wants to use specifically Delaunay,
he has to switch to User (or static)
memory in supervisor options.
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| 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. |
| It is now possible to install Flux on Windows or Linux without administrator rights with limited functionalities. |
| About CDE Licensing: Before using
CDE, please check that the environment
variable for the license: ALTAIR_LICENSE_PATH is set
as system environment variable.
Warning: If
ALTAIR_LICENSE_PATH is set as user
environment variable only, CDE will fail. For CDE to work properly,
ALTAIR_LICENSE_PATH environment variable must
be set as system environment variable.
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From Flux 2021.1, the APIs in 32 bits are no longer supported,
so no longer installed. Only the 64 bits are available. There are
some consequence because some applications were available only in 32
bits before:
Note: If you want use these couplings, please use a version prior
to Flux 2021.1.
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| When starting the FluxSupervisor, the splash screen may take a long
time to disappear after the supervisor is displayed. This problem may
happens if a license server which is not reachable is set in the
ALTAIR_LICENSE_PATH environment variable or in the license manager of
FluxSupervisor. In this case we recommend to set the environment variable ALTAIR_CONNECTION_TIMEOUT with a value in seconds. This variable will stop the checking of the license on a not reachable host, if the time limit set by the value is reached. A value of 3 seconds should be enough to reach any license server, but if it is not enough this value should be increased. |
Minimum memory required:
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Flux is being progressively integrated in SimLab to benefit of the
easy common environment. In SimLab 2021.2 Several applications have
started to be integrated with limitations:
For more details, please consult Flux in SimLab 2021.2. |