quantum_package/COMPILE_RUN.md

Compile

We need to create the file which contains all the tree dependencies for the binaries. It’s not a Makefile, but a Ninja file (so don’t type make is hopeless, type ninja instead).

The script to create the dependency file (aka build.ninja) is qp_create_ninja.py.

What utilization of the code will you do?

• If you only want the binaries (for production workflow) use the flag --production in when calling this script. It’s quicker
• Else if you are a developer and you want to be able to compile specific modules use: --development. It will create for you the build.ninja in each module

Compilation Flags

You need to specify all the flags useful for the compilation: like the optimization flags, the Lapack libary, etc. $QP_ROOT/config contains ifort.cfg and gfortran.cfg containing the compiler flags that will be used. You can edit these files to modify the compiling options.

Example to create the Ninja file

qp_create_ninja.py create --production $QP_ROOT/config/ifort.cfg

Compiling

Just type ninja if you are in $QP_ROOT (or ninja -f $QP_ROOT/build.ninja elsewhere). The compilation will take approximately 3 min.

If you have set the --developement flag in a specific module you can go in the corresponding module directory and run ninja to build only this module. You can type ninja all in a module for compiling all the submodule

Finally, go in $QP_ROOT/ocaml and type make