Open `~/.config/htop/htoprc` and modify the line:

    left_meters=AllCPUs Memory Swap 

to be

    left_meters=CPU Memory Swap

That will replace the default CPU monitor with a single meter for the average across all cores. After that, you'll be able to customize things the standard way by pressing F2 within htop.

Excellent, this worked!

Oh that is a little awkward. You can configure it, but the configuration options appear below the CPU bars. So if there's already so many that your screen is filled, that's a bit moot.

This stackoverflow has some pointers though: http://superuser.com/questions/806614/how-to-compress-or-hid...

If you don't mind me asking what kind of machine has 768 cores?

Likely a machine with a group of Xeon Phi coprocessors, each a PCI card containing 64 fully-capable x86 cores: https://www-ssl.intel.com/content/www/us/en/processors/xeon/...

The idea is that you can run embarrassingly parallel workflows without needing to recode for a GPU; just launch processes with appropriate affinities. NERSC has compute clusters with thousands of these beasts. They make astronomers very happy.

Actually a NUMA system, an SGI UV: https://www.sgi.com/products/servers/uv/

It's a NUMA system, an SGI UV: https://www.sgi.com/products/servers/uv/ It actually has 2048 cores and ~7TB of memory.

You obviously need a bigger screen

wow, 768 cores is a lot of cores! you can try posting an issue here? https://github.com/hishamhm/htop

Try reducing your cores to 16, then you'll be able to see some processes in the list!

I don't have 768 machines, but considering one writes a hypothetical bug report, what would be the instructions to trigger or reproduce the bug?