Multi threaded Variable Calculations

Learn more at https://www.tecplot.com/360 Tecplot 360 2020 R2 has additional multi-threading for variable calculations. Under the Analyze-Calculate Variables dialog, all of the functions listed will be fully multi-threaded. In previous versions of Tecplot 360, multi-threading was used only if there were multiple zones. Multi-threading is now used within a zone as well as across multiple zones. In the video example, the improvement is 8 times faster than with earlier version of Tecplot 360. This test was done on an 8 core windows machine computing Q Criterion, with a data set that was 8.6 million polyhedrals. The data set is loaded, Q criterion is calculated, and an isosurface is generated. In Tecplot 360 2020 R2 you can see that all 8 cores are used for the computation, whereas in Tecplot 360 2020 R1 just one CPU core is effectively being used. The full computation takes 284 seconds in 2020 R1, and by the time I finish this sentence the computation in 2020 R2 will already be done, having taken only 36 seconds. The next calculation was tested on a 32 core Windows machine, and was over 11 times faster in 2020 R2 compared to the previous release. For other data sets with multiple zones, the improvement is not as large because Tecplot 360 2020 R1 already used multi-threading across zones, but multi-threading within a zone still results in a faster computation: 1.3 times faster for the OpenFOAM data set, and over two times faster for the Plot3D data. All three of these examples followed the same steps: load the data set, calculate Q criterion, create an iso-surface, and export an image.