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y3_cluster_cpp environment with Conda

Context

I am building y3_cluster_cpp on WC in a conda environment in which I also have the CUDA development tools needed for use of the gpuintegration code.

This starts from a conda environment that already has everything needed by CosmoSIS, and adds the additional things needed by y3_cluster_cpp. The following will do this installation in one shot; this is generally quicker than creating an environment incrementally.

conda create -n cosmosis -c conda-forge astropy cffi cfitsio click cmake configparser cudatoolkit cxx-compiler cython emcee==2.2.1 fftw fitsio fortran-compiler future gsl jinja2 kombine matplotlib minuit2 mpi4py numba numpy nvcc_linux-64 openblas pybind11 pyccl pycparser pytest pyyaml sacc scikit-learn scipy six

Working environment

I set up my working environment at under /work1. This setup needs to be done every time I start work.

# Go to the working directory; use here whatever you really use, not my name.
cd /work1/numint/paterno/

The following should be run from where you created your top-level directory, above.

# Set up the environment
export Y3GCC_DIR=$PWD
export Y3_CLUSTER_CPP_DIR=${Y3GCC_DIR}/y3_cluster_cpp
export Y3_CLUSTER_WORK_DIR=${Y3GCC_DIR}/y3_cluster_cpp
export LD_LIBRARY_PATH=${Y3GCC_DIR}/cuba/lib:$LD_LIBRARY_PATH

Building

The following is done to build the software. Most needs to be done only once.

# Clone repositories
git clone [email protected]:marcpaterno/cuba.git
git clone [email protected]:mpaterno/y3_cluster_cpp.git
git clone [email protected]:mpaterno/cubacpp.git

Install cluster_toolkit

cluster_toolkit is not available from Conda, so I have to build it and install it myself.

wget https://github.com/marcpaterno/cluster_toolkit/archive/master.tar.gz
tar xf master.tar.gz
cd cluster_toolkit-master/
python3 setup.py install     # This will install into the environment
cd ../
rm -r cluster_toolkit-master/
rm master.tar.gz

Build CUBA

Note that LD_LIBRARY_PATH is set above to include the directory into which we will be placing the CUBA dynamic library.

cd ${Y3GCC_DIR}/cuba
cd cuba
CC=$(which gcc) ./configure
./makesharedlib.sh
mkdir include
mkdir lib
mv cuba.h include/
mv libcuba.so lib/
cd $Y3GCC_DIR

Build cosmosis

Build gpuintegration

There is nothing to build -- everything we use is in a header.

Build y3_cluster_cpp

Working in the environment