Welcome!
This is a place for errata broadly related to personal and professional interests.
Check out some specific pages like quotes and map of active tropical cyclones.
If it can be destroyed by the truth, it deserves to be destroyed by the truth. ⇨
“Always take sides. Neutrality helps the oppressor, never the victim. Silence encourages the tormentor never the tormented." ⇨
“I am so tired of waiting. Aren't you, for the world to become good and beautiful and kind? Let us take a knife and cut the world in two-- and see what worms are eating at the rind." ⇨
Recent Posts
29 Sep 2023
Who knew you can make an animated GIF with *convert*
Another thing that comes up infrequently so it is hard to remember! This method of creating an animation from a set of individual images as frames is one of the easiest I have ever seen. (Get out of here FFMPEG!)
ImageMagick’s convert animation example command #
convert -delay {centiseconds} -loop {loop-n-times} *.png output.gif
Here is an output made with convert from .png frames using a 25 centisecond frame advancement time.
22 Sep 2023
29 Aug 2023
An Update To Apptainer Use On TACC HPC
The University of Texas’ newest supercomputer Frontera currently requires the following modules loaded for Apptainer images/containers based on the mvapich infiniband (ib) base images–particularly for any containerized programs that intend to use MPI.
Researchers moving their Apptainer images between TACC HPC systems, or building container images specifically for individual systems, may need to adapt their sbatch scripts to accommodate differences between default environments and infrastructures on the various available clusters.