AKRR executes application kernels on HPC resources using the same mechanism as a regular user, for example it uses ssh to access the system and submits job scripts through the system scheduler. This allows for not only monitoring the performance of the application kernels themselves but also testing the whole workflow that regular users employ in order to carry out their work.
AKRR was designed to execute a large number of jobs on a number of HPC resources in 24/7 mode. To achieve high reliability, a multi-process design was chosen where the master process dispatches a small self-contained subtask to the children processes. This allows the master process code to be relatively simple and moves the more complicated code to the children processes. This way a severe error on one of the child processes does not cause the whole system to collapse.
Additional documentation for AKRR is included as a PDF in the AKRR package.