How to improve the computing speed of a THM model on OGS6?

  • I’m pretty sure that your problem is the same as this: https://discourse.opengeosys.org/t/pardisolu-fails-with-unspecific-message/ So, you need to empty the BLAS variables. In this post, it is described that you need to toggle into advanced mode (with t in ccmake) in order to find them. I think in CMake-GUI it will be similar, you can somewhere switch to advanced mode. Don’t delete the entire variables, just remove the mkl related paths. This might take about 2 or 3 configure iterations.
  • scaling can be easily switched off in the project file. I think you will find that out by yourself.
  • From the output, it seems that you compiled OGS in debug mode. I would recommend to switch to release for the real model runs as OGS is significantly slower in debug mode.
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