PCRaster-4.0.1 final version released

We are glad to announce the final release of PCRaster-4.0.1! We fixed several bugs, some of them might affect model outcomes.  Please read the changes document carefully. In addition, this is the first release fully supporting 64-bit Windows systems.

For more information, visit the PCRaster 4.0.1 download page:

Enjoy!

New online courses

We have updated our course material. Have a look at the Courses section for two new distance learning courses on PCRaster Python; without tutor support the courses are free of charge.

Improving performance on Linux

It is possible that your PCRaster models are not executing as fast as the could on your Linux system. That can happen because the default memory allocation and de-allocation rules that are in effect on Linux are optimized for system wide efficiency, instead of raw performance. For more information about this, see this document.

You can tune the memory allocation and de-allocation logic using environment variables (note the trailing underscore):

export MALLOC_MMAP_MAX_=0
export MALLOC_TRIM_THRESHOLD_=-1

 

You may want to check if these values help you to squeeze a bit of extra performance out of your models.

PCRaster goes open source!

As of now, all PCRaster sources are distributed under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. All source code is stored on SourceForge.