About the Installation category

Installation
1

Questions and discussions related to installing channelflow, e.g. downloading, git, build system, required libraries.

2

Hey all,
It is my first time to use Channelflow ,but I install this so many times and failed .
I install this follow the installation steps from github’s installation.

mkdir build
cd build
cmake PATH_TO_SOURCE -DCMAKE_BUILD_TYPE=debug (/release) (configuration options)
make -j
make install

Here is my command line:
cmake /home/sunny/ykl/channelflow -DCMAKE_BUILD_TYPE=release -DCMAKE_INSTALL_PREFIX=/home/sunny/ykl/channelflow2.0 -DWITH_PYTHON=ON -DWITH_HDF5CXX=ON

but it didn’t work.
cmake: /usr/local/lib/libcurl.so.4: no version information available (required by cmake)

– configuring channelflow version 2.0.2
– Using GNU compiler options

– Starting system introspection
– Found FFTW
– FFTW_LIBRARY=/usr/lib/x86_64-linux-gnu/libfftw3.so
– FFTW_OMP_LIBRARY=/usr/lib/x86_64-linux-gnu/libfftw3_omp.so
– FFTW_MPI_LIBRARY=FFTW_MPI_LIBRARY-NOTFOUND
CMake Warning at cmake/Modules/FindFFTW.cmake:32 (message):
The locations of fftw_mpi and fftw library are not the same. This is
probably something you don’t want!
Call Stack (most recent call first):
CMakeLists.txt:102 (find_package)

– MPI libs: /usr/lib/openmpi/lib/libmpi_cxx.so;/usr/lib/openmpi/lib/libmpi.so
– FFTW_MPI library: FFTW_MPI_LIBRARY-NOTFOUND
CMake Error at CMakeLists.txt:125 (message):
Option USE_MPI is set and MPI is found, but cmake couldn’t find
libfftw_mpi, which is required. If you do not want to use MPI, clean up
and rerun cmake with -DUSE_MPI=off.

– Configuring incomplete, errors occurred!
See also “/home/sunny/ykl/channelflow/build/CMakeFiles/CMakeOutput.log”.
See also “/home/sunny/ykl/channelflow/build/CMakeFiles/CMakeError.log”.

I tried many times ,but i don’t know how to fix it.I use the linux not well ,because I use the windows system all the time.maybe the problem is easy to solve ,I think that is differences in profession makes one feel worlds apart.
I am looking forward to your reply.
-kalon

3

Hi,
add FFTW path to cmake using -DCMAKE_PREFIX_PATH cmake flag
the following worked for me:

mkdir build
cd build
cmake ../channelflow -DCMAKE_BUILD_TYPE=release -DCMAKE_INSTALL_PREFIX=$HOME/opt/channelflow -DCMAKE_PREFIX_PATH="/home/ssray/opt/fftw/3.3.8;/home/hemanta.kumar/opt/netcdf_c/4.6.3;/home/hemanta.kumar/opt/hdf5/1.10.5" -DCMAKE_CXX_COMPILER=/share/openmpi/bin/mpicxx