Installation

One can install HepLib automatically or manually, the recommended one is to use the install.sh script or the makefile.

Install Automatically

One can install HepLib automatically with the all-in-one script install.sh or the all-in-one makefile.

wget https://heplib.github.io/install.sh
chmod +x install.sh
INSTALL_PATH=<INSTALL PATH> jn=<jn> ./install.sh

  • <INSTALL PATH> the directory to which all external libraries/programs will be installed.

  • <jn> the number of jobs in invoking make -j $jn.

Install Manually

One can also install HepLib manually which is NOT recommended, including to install the required external libraries, external programs and HepLib iteself following the steps below.

Assuming one has exported the environment variable INSTALL_PATH.

export INSTALL_PATH="<INSTALL PATH>"

1. Install External Libraries

  • GMP : it is required for MPFR and GiNaC.

curl -L -O https://gmplib.org/download/gmp/gmp-6.2.0.tar.gz
tar zxf gmp-6.2.0.tar.gz
cd gmp-6.2.0
./configure --prefix=$INSTALL_PATH
make -j 16
make install

  • MPFR : it is used to handle the multiple precision in the numerical integration. MPFR needs to be compiled with the option --enable-float128.

The quadruple precision type __float128 has been changed to _Float128 since MPFR 4.1.0, so we prefer the version MPFR 4.0.2 for the moment, furthermore the MPFR C++ wrapper is included in HepLib archive.

curl -L -O https://heplib.github.io/mpfr-4.0.2.tar.gz
tar zxf mpfr-4.0.2.tar.gz
cd mpfr-4.0.2
./configure --prefix=$INSTALL_PATH --with-gmp=$INSTALL_PATH --enable-float128 --enable-thread-safe
make -j 16
make install

  • CLN : it is required for GiNaC.

curl -L -O https://www.ginac.de/CLN/cln-1.3.6.tar.bz2
tar jxf cln-1.3.6.tar.bz2
cd cln-1.3.6
./configure --prefix=$INSTALL_PATH --with-gmp=$INSTALL_PATH
make -j 16
make install

  • GiNaC : The underlying language of HepLib, which is used for symbolic operations.

curl -L -O https://www.ginac.de/ginac-1.8.0.tar.bz2
cd ginac-1.8.0
./configure --prefix=$INSTALL_PATH PKG_CONFIG_PATH=$INSTALL_PATH/lib/pkgconfig
make -j 16
make install

  • QHull : it is used for Sector Decompostion with the geometric strategy.

curl -L -O http://www.qhull.org/download/qhull-2020.2.zip
unzip -q qhull-2020.2.zip
cd qhull-2020.2
cp Makefile Makefile.bak
cat Makefile.bak | sed "s/\/usr\/local/\$\$INSTALL_PATH/g" > Makefile
make
make install

  • MinUit2 : it is used to find the minimum of a function.

curl -L -O http://project-mathlibs.web.cern.ch/project-mathlibs/sw/5_34_14/Minuit2/Minuit2-5.34.14.tar.gz
cd Minuit2-5.34.14
./configure --prefix=$INSTALL_PATH
make -j 16
make install

  • CUBA : it is one of the numerical integrators.

The version with quadruple precision libcubaq is actually used, by adding the option --with--real=16 --fPIC to the configure script. One may also need the option -fcommon while using gcc 10.

curl -L -O http://www.feynarts.de/cuba/Cuba-4.2.tar.gz
tar zxf Cuba-4.2.tar.gz
cd Cuba-4.2
./configure --prefix=$INSTALL_PATH --with-real=16 CFLAGS="-fPIC -fcommon" CXXFLAGS="-fPIC -fcommon"
make
make install

2. Install External Programs

  • Fermat : it is used for matrix operation, multivariate rational polynormial simplification, etc..

curl -L -O http://home.bway.net/lewis/fermat64/ferl6.tar.gz
tar zxf ferl6.tar.gz
mv ferl6 $INSTALL_PATH
cd $INSTALL_PATH/bin
ln -s -f ../ferl6/fer64 .

  • Form : it is used for Dirac and Color matrix trace, Lorentz index contraction, etc..

curl -L -O https://github.com/vermaseren/form/releases/download/v4.2.1/form-4.2.1-x86_64-linux.tar.gz
tar zxf form-4.2.1-x86_64-linux.tar.gz
cp -rf form-4.2.1-x86_64-linux/form $INSTALL_PATH/bin/
cp -rf form-4.2.1-x86_64-linux/tform $INSTALL_PATH/bin/

  • FIRE : it is required for IBP reduction in HepLib::IBP::FIRE class.

git clone https://bitbucket.org/feynmanIntegrals/fire.git
mv fire/FIRE6 $INSTALL_PATH/FIRE6
rm -rf fire
cd $INSTALL_PATH/FIRE6
./configure --enable_zlib --enable_snappy --enable_lthreads --enable_tcmalloc --enable_zstd
make -j 16
make

  • KIRA : it is required for IBP reduction in HepLib::IBP::KIRA class.

curl -L -o kira https://kira.hepforge.org/downloads?f=binaries/kira-2.0
chmod +x kira
mv -f kira $INSTALL_PATH/bin/kira

3. Install HepLib

One can download the most recent version of HepLib as a compressed archive: HepLib.tar.gz, uncompress it and change current directory into HepLib/src by the commands:

wget https://heplib.github.io/HepLib.tar.gz
tar zxfv HepLib.tar.gz
cd HepLib/src

Create a directory for cmake to build the library as follows:

mkdir build && cd build
cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_PATH ..
make -j 4 && make install

If GiNaC or other dependent external library is not installed to CMAKE_INSTALL_PREFIX, the user needs to specify the locations by supplying the variables INC_PATH and LIB_PATH in the cmake arguments as:

cmake -DCMAKE_INSTALL_PREFIX=path -DINC_PATH="inc1;inc2" -DLIB_PATH="lib1;lib2" ..
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