source: https://github.com/nkahmed/PGD
Ubuntu 22.04（64 bits）
> apt update > apt install build-essential > gcc --version
> wget https://github.com/nkahmed/PGD/archive/refs/heads/master.zip > unzip -q master.zip > mv PGD-master PGD
Before compiling, please change the statement in line 42 in the file “graphlet_utils.cpp” to the following: return ifile.is_open().
> cd PGD > make
> ./pgd --help > ./pgd -f sample_graph.csv