re-activated ncols=32 kernel. this version is a bit faster (2.5%) than the general version. once i found out why, i can delete this version
re-activated ncols=32 kernel. this version is a bit faster (2.5%) than the general version. once i found out why, i can delete this version

RRZE-HPC/GHOST,RRZE-HPC/GHOST,RRZE-HPC/GHOST,RRZE-HPC/GHOST