Problem installing 2decomp

[LionelGelebart]

I am trying to install this new version of 2decomp (I am using the old version with a Makefile).
I have followed the instructions to install 2decomp and get the following error with cmake.
I am not familiar with cmake.
Could you help?

[lgelebart@marquises0 src (dev)]$ echo $FC
mpif90
[lgelebart@marquises0 src (dev)]$ cmake --version
cmake version 3.24.0-rc4

CMake suite maintained and supported by Kitware (kitware.com/cmake).
[lgelebart@marquises0 src (dev)]$
[lgelebart@marquises0 src (dev)]$ cmake -S . -B build
CMake Warning (dev) in CMakeLists.txt:
No project() command is present. The top-level CMakeLists.txt file must
contain a literal, direct call to the project() command. Add a line of
code such as

project(ProjectName)

near the top of the file, but after cmake_minimum_required().

CMake is pretending there is a "project(Project)" command on the first
line.
This warning is for project developers. Use -Wno-dev to suppress it.

-- Compiling using Generic FFT
CMake Error at CMakeLists.txt:93 (install):
install DIRECTORY given no DESTINATION!

CMake Error at CMakeLists.txt:95 (install):
install DIRECTORY given no DESTINATION!

CMake Error at CMakeLists.txt:99 (install):
install EXPORT given no DESTINATION!

CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-config.cmake.in does not exist.
CMake Error at CMakeLists.txt:102 (configure_file):
configure_file Problem configuring file

CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-config-version.cmake.in does not exist.
CMake Error at CMakeLists.txt:106 (configure_file):
configure_file Problem configuring file

CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-build_config.cmake.in does not exist.
CMake Error at CMakeLists.txt:119 (configure_file):
configure_file Problem configuring file

CMake Warning (dev) in CMakeLists.txt:
No cmake_minimum_required command is present. A line of code such as

cmake_minimum_required(VERSION 3.24)

should be added at the top of the file. The version specified may be lower
if you wish to support older CMake versions for this project. For more
information run "cmake --help-policy CMP0000".
This warning is for project developers. Use -Wno-dev to suppress it.

-- Configuring incomplete, errors occurred!
See also "/home/lgelebart/LIBRAIRIES/2decomp-fft/src/build/CMakeFiles/CMakeOutput.log".
[lgelebart@marquises0 src (dev)]$

[mathrack]

Hello, You need to run the cmake command from the main folder, not the SRC one. Regards, Mathrack Nov 15, 2023 12:55:02 LionelGelebart ***@***.***>:

…

*I am trying to install this new version of 2decomp (I am using the old version with a Makefile). I have followed the instructions to install 2decomp and get the following error with cmake. I am not familiar with cmake. Could you help?* ***@***.*** src (dev)]$ echo $FC mpif90 ***@***.*** src (dev)]$ cmake --version cmake version 3.24.0-rc4 CMake suite maintained and supported by Kitware (kitware.com/cmake). ***@***.*** src (dev)]$ ***@***.*** src (dev)]$ cmake -S . -B build CMake Warning (dev) in CMakeLists.txt: No project() command is present. The top-level CMakeLists.txt file must contain a literal, direct call to the project() command. Add a line of code such as *project(ProjectName) * near the top of the file, but after cmake_minimum_required(). CMake is pretending there is a "project(Project)" command on the first line. This warning is for project developers. Use -Wno-dev to suppress it. -- Compiling using Generic FFT CMake Error at CMakeLists.txt:93 (install): install DIRECTORY given no DESTINATION! CMake Error at CMakeLists.txt:95 (install): install DIRECTORY given no DESTINATION! CMake Error at CMakeLists.txt:99 (install): install EXPORT given no DESTINATION! CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-config.cmake.in does not exist. CMake Error at CMakeLists.txt:102 (configure_file): configure_file Problem configuring file CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-config-version.cmake.in does not exist. CMake Error at CMakeLists.txt:106 (configure_file): configure_file Problem configuring file CMake Error: File /home/lgelebart/LIBRAIRIES/2decomp-fft/src/cmake/decomp2d-build_config.cmake.in does not exist. CMake Error at CMakeLists.txt:119 (configure_file): configure_file Problem configuring file CMake Warning (dev) in CMakeLists.txt: No cmake_minimum_required command is present. A line of code such as *cmake_minimum_required(VERSION 3.24) * should be added at the top of the file. The version specified may be lower if you wish to support older CMake versions for this project. For more information run "cmake --help-policy CMP0000". This warning is for project developers. Use -Wno-dev to suppress it. -- Configuring incomplete, errors occurred! See also "/home/lgelebart/LIBRAIRIES/2decomp-fft/src/build/CMakeFiles/CMakeOutput.log". ***@***.*** src (dev)]$ — Reply to this email directly, view it on GitHub[#296], or unsubscribe[https://github.com/notifications/unsubscribe-auth/ADHFJ667XTYEPHF64M6DNZ3YESURFAVCNFSM6AAAAAA7MLXC66VHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZVHA2TIMJYGM]. You are receiving this because you are subscribed to this thread. [Tracking image][https://github.com/notifications/beacon/ADHFJ6ZEEJMHTHC3P75YFR3YESURFA5CNFSM6AAAAAA7MLXC66WGG33NNVSW45C7OR4XAZNKIRUXGY3VONZWS33OVJRW63LNMVXHIX3JMTHAAWKT44.gif]

[LionelGelebart]

Hello,
I tried it before with 2 variants:
1 : cmake -S src -B build
I get the same error message as obtained when running cmake in src
2 : cmake -S . -B build
-> CMake Error: The source "/home/lgelebart/LIBRAIRIES/2decomp-fft/CMakeLists.txt" does not match the source "/home/lgelebart/LIBRAIRIES/2decomp-fft/src/CMakeLists.txt" used to generate cache. Re-run cmake with a different source directory.

[LionelGelebart]

cmake -S . -B build
works after deleting the build.
Sorry (I go on)

[mathrack]

You can look at the CI for some examples of the options one can provide to the cmake command
https://github.com/2decomp-fft/2decomp-fft/blob/dev/.github/workflows/Build_all.yml

[LionelGelebart]

OK, thank you!

[LionelGelebart]

Now it builds against fftw3_f03!
How can I run the differents tests ?

[mathrack]

See https://github.com/2decomp-fft/2decomp-fft/blob/dev/.github/workflows/RunnerFullCI.yml#L35 Nov 15, 2023 13:35:20 LionelGelebart ***@***.***>:

…

Now it builds against fftw3_f03! How can I run the differents tests ? — Reply to this email directly, view it on GitHub[#296 (reply in thread)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/ADHFJ66FDO3Q23KEA4PZQKDYESZILAVCNFSM6AAAAAA7MLXC66VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM3TKNZWGUZDK]. You are receiving this because you commented. [Tracking image][https://github.com/notifications/beacon/ADHFJ674BJ2D4ABBSGXMWLDYESZILA5CNFSM6AAAAAA7MLXC66WGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAOON42.gif]

[LionelGelebart]

OK it works, but only with a single MPI proc. How can I modify the number of MPI process?

[rfj82982]

What do you mean a single mpi procs? if this is for running the tests you can simply
[bash] ccmake path_to_build
press t and look for MPIEXEC_MAX_NUMPROCS and change to the number of MPI ranks that you have available.
Indeed if you build the tests you should have a folder RunTests and you can simply use
mpirun -n XX path_to_build/bin/the_test_i want_to_run

[rfj82982]

Every test takes also a number of inputs if you want to change the resolution, the decomposition and in some the number of iterations

[rfj82982]

Test needs to be build and you can do it by
[bash] ccmake path_to_build
and make sure that the option 'BUILD_TESTING' is 'ON'

[mathrack]

If you look carefully at the CI examples, you will probably find some stuff for changing the number of grid points and the number of MPI ranks Nov 15, 2023 14:02:14 LionelGelebart ***@***.***>:

…

OK it works, but only with a single MPI proc. How can I modify the number of MPI process? — Reply to this email directly, view it on GitHub[#296 (comment)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/ADHFJ67XGRI3WLKKISLUCGDYES4NFAVCNFSM6AAAAAA7MLXC66VHI2DSMVQWIX3LMV43SRDJONRXK43TNFXW4Q3PNVWWK3TUHM3TKNZWG44DE]. You are receiving this because you commented. [Tracking image][https://github.com/notifications/beacon/ADHFJ667F33D2G5YMDSA6U3YES4NFA5CNFSM6AAAAAA7MLXC66WGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAOOOM4.gif]

[pbartholomew08]

Alternatively you can use ccmake build/ to configure the tests using a text interface (will require rebuilding). However this only affects the running of the tests - users of the library are free to use however many ranks they choose when they initialise 2decomp&fft

[pbartholomew08]

^ N.B. "affects the running of the tests" using the ctest interface, see running generally #296 (reply in thread)

[rfj82982]

Just a clarification when you add the -S you need to point at the root of the repository. In theory you could have also created the build under src but you should have had
cmake -S ../ -b build
However I'll strongly suggest you not to do this and start to mix the build in the directory where you have also the sources.

[LionelGelebart]

Thank you all for your different answers.
1/ When a test individually with mpirun -n XX path_to_build/bin/the_test_i want_to_run, as proposed by rfj82982 : it works correctly and uses the correct number of proc (as observed in the log file)
-> OK!
2/ When I run ctests --test-dir build : tests are running correctly, 0 failed
BUT, when I look at the log files, only 1 proc is used, even if MAX_NUMPROCS=14 when looking at ccmake build.
I probably do something wrong... any idea?

[LionelGelebart]

I have just tested this but when using cmake -DMPIEXEC_MAX_NUMPROCS=8, it is MAX_NUMPROCS that is modified in the ccmake build page.
I did this:
rm -rf build/
cmake -S . -B build -DBUILD_TESTING=ON -DMPIEXEC_MAX_NUMPROCS=8
ccmake build

[LionelGelebart]

Modifying MPIEXEC_MAX_NUMPROCS directly through ccmake build is OK (log files show the correct nimber of proc)

[rfj82982]

The option is there also in ccmake you need just to toggle the advance option and move through the pages (see attached). However, if you do it at configure level it is even better

[LionelGelebart]

Yes I found it (see 4 messages above). But there is still a remaining problem : see 2 messages above.
Thanks for all

[mathrack]

This looks a bit inconsistent. If you think there is a bug in our cmake / ccmake build scripts, feel free to open a issue.