co2 file in Nek5000

[Chunheng Zhao]

Dear Neks,

How can I use co2 mesh file in Nek5000?

Chunheng.

[YuHsiang Lan]

Hi Chunheng, 

You only need to put PARRSB into PPLIST in your makenek like this:
PPLIST="PARRSB"

after recompiling the case, it should search and read co2 file automatically.

Basically, re2 only has mesh, curves and BC.

ma2 file stores the connectivity + partition.

co2 files, spitted from ma2, only has connectivity.

What PARRAB does is to generate the partition on-the-fly.

PARRSB also has parcon in it, so it's capable of generating connectivity as well. 

You don't actually need co2 file anymore unless your case requires a specific way to specify connectivity.

Hope this helps,

Yu-Hsiang

--

[Chunheng Zhao]

Thank you. It seems that there is a problem with the downloading the essential files:

--2025-08-19 20:52:27--  (try: 3)  https://github.com/Nek5000/parRSB/archive/v0.9.3.tar.gz

Connecting to github.com (github.com)|140.82.113.4|:443... 

I am using Crux.

Chunheng.