Build with gfortran on Linux

Environment Construction

First, we install make and gnuplot. If you are using a RedHat distribution such as CentOS, execute commands as follows.

$ sudo yum install "Developer Tools"
$ sudo yum install gcc-gfortran libgfortran
$ sudo yum install gnuplot

If you are using a Debian distribution such as Debien and Ubuntu, execute commands as follows.

$ sudo apt install build-essential
$ sudo apt install gfortran
$ sudo apt install gnuplot

Build for AkaiKKR

After creating a working directory for AkaiKKR, use “cd” to move there.

% mkdir AkaiKKR
% cd AkaiKKR

Put the latest version of AkaiKKR you downloaded into the AkaiKKR directory you created. After extracting the file, use “cd” to move to the extracted directory.

% tar zxvf cpa2021v01.tgz
% cd cpa2021

Then, open the makefile with your favorite editor such as “vi”, “emacs”, “nano”, etc. Followings are lines 15 and 16.

fort = ifort
#fort = gfortran

Add “#” to the beginning of line 15 and delete “#” from the beginning of line 16.

#fort = ifort
fort = gfortran

This operation switches the compiler from ifort to gfortran. After editing, save and exit. Then, build.

% make
% make gpd
% make spc

Build is done with the following commands.

Operation Check

The operation can be checked by executing the following command in the directory where the build was performed.

$ ./specx < in/fe