GeoStudio | PLAXIS - Calculation does not run with 16 cores or more

Application	PLAXIS 2D PLAXIS 3D
Issue status	✔ Solved
First Affected Version	PLAXIS 2D 2011.00 PLAXIS 3D 2012.01
Found in Version	PLAXIS 2D 2011.00 PLAXIS 3D 2012.01
Fixed and Released in Version	Solved in a recent version
Issue #	18445
Date created	19 March 2013
Date modified	24 October 2016

Problem description

Due to an issue with the detection of the number of cores for computers that have 16 cores with hyperthreading (or more), the Plaxis calculation kernel will fail to run for:

PLAXIS 2D 2012.01 and earlier,
PLAXIS 2D Classic
PLAXIS 3D 2012.02 and earlier, but only when using the Pardiso (multicore direct) solver.

This issue occurs when having a minimum of 32 physical cores, or a minimum of 16 cores + hyperthreading (which gives 32 logical cores).

Solution

This issue has been fixed since PLAXIS 3D 2013.01, and now also since PLAXIS 2D AE.

For older PLAXIS 3D versions, the solver can be changed to Picos or Classic.

An option to run the calculation would be to perform the calculation on a machine that has less cores available.