It seems that either EMA or the RAPL counter had an overflow

Must have missed this one for some reason

Using 1024x512 means that CA, NAS-FT and SRAD all use the same field
size.

With 128x128x32, 20 iterations completes way too quickly, so raise them
significantly.

The binary created by flang sometimes randomly runs into a segmentation
fault. Since the same code works fine with gfortran, I am inclined to
blame the WIP flang compiler for it. If it happens during a measurement
run, just try again until it works.

... to show that python is unsuitable.

This reverts commit b6bd5f24.