cmake on a broken mirror

[LukasvdWiel]

Dear developer,

I am trying to run the latest candi, in order to install Deal2. The procedure insists on installing cmake, even while I have cmake already installed, and I explicity do not request it using the command:

./candi.sh --prefix=/trinity/opt/apps/software/Deal2/dealii-9.4.2/buildHere -j 32 --packages="opencascade parmetis hdf5 p4est trilinos symengine dealii" -y

I have checked the packages variable and see that cmake has been added before all the packages I requested:

packages: once:cmake opencascade parmetis hdf5 p4est trilinos symengine dealii

That would not even be so bad, but candi tries to download cmake from

https://tjhei.info/candi-mirror/cmake-3.20.5-linux-x86_64.tar.gz

and this website is down/broken/does not exist, breaking the install procedure.

How can I prevent cmake from being added to the list of to-be-installed packages?

Thanks a lot,
Lukas

[gassmoeller]

Hi Lukas,
I observe similar problems (although it eventually downloads for me after many failed tries). What should work is to comment out this line in candi.cfg:

candi/candi.cfg

Line 27 in dc8e8d3

MIRROR="https://tjhei.info/candi-mirror/ https://cecas.clemson.edu/dealii/mirror/"

Then candi should download all necessary packages directly from the websites of their repositories, instead of the mirror site that seems to be broken right now.

[koecher]

Hi Lukas,

for me it sounds like, that your operating system (platform) is detected as centos7, for that platform we have an additional request for cmake in the file platform/supported/centos7.platform

Just comment out the last line with once:cmake there.

candi/deal.II-toolchain/platforms/supported/centos7.platform

Line 40 in dc8e8d3

PACKAGES="once:cmake ${PACKAGES}"

Best
Uwe

[LukasvdWiel]

Thank you both for the replies!

@gassmoeller I removed the mirror as you suggested. Then everything installs accept ParMetis. We already have an existing install of ParMetis and Candi and Deal2 picked that up nicely. Users of Aspect which used Deal2 have confirmed everything functions according to their wishes

@koecher Ah, that is good to know! I thought an existing cmake was enough, and that candi.cfg was a sort of central dashboard. It is good to know that there are more files I have to keep in mind.

[flacombe1]

@gassmoeller

candi/candi.cfg

Line 27 in dc8e8d3
MIRROR="https://tjhei.info/candi-mirror/ https://cecas.clemson.edu/dealii/mirror/"

This seems to still be the solution for cmake-related dealii building failures, even if the mirror link isn't broken in the same way as the author of this post describes. I've been trying to compile aspect on a fresh Ubuntu 24.04.2 install for a few days now while using candi to install deal.ii-v9.6.1 and have had the final few failures stem from deal.ii's installation of cmake.
Just wanted to appreciate the old solution post and let you know it was still a relevant issue, as the lab hadn't seen things like this before either.

[bangerth]

Just to put that here as well: Ob Ubuntu 24.04, the easiest way to install deal.II is to do apt install libdeal.ii-dev. This currently installs (I believe) version 9.5 plus all of the necessary dependencies. If you want 9.6, you can either use candi or simply the instructions in the README: https://www.dealii.org/current/readme.html The point is that in either case, you no longer need to worry about any of the dependencies, because they have already been installed on your system by apt install ....

[flacombe1]

@bangerth If you don't mind, where would that install to for use with cmake? I tried that route but it didn't update the $DEAL_II_DIR location and for the life of me I couldn't find anything but the .gz and copyright files in /usr/lib/libdeal.ii-dev/ (or some path like this).