How do you achieve parallel test execution with Ranorex?

Because GUI automation needs exclusive control of a desktop's mouse, keyboard, and focused window, Ranorex can't simply run many UI tests at once on a single desktop session the way a headless API test suite could.

Real parallelism instead comes from spreading execution across separate machines or isolated sessions - multiple physical or virtual machines, each running a Ranorex Agent, or separate Remote Desktop/RDS sessions that each get their own desktop - with a subset of the suite (a smart folder, a data range, or a whole test suite) assigned to each one.

In a CI setup, this typically means a pipeline that fans out into several parallel jobs, each targeting a different Agent or VM and a different slice of the test suite, then collects and merges the resulting reports once every branch finishes.

For web-only portions of a suite, some teams additionally point Ranorex's WebDriver-based execution at a Selenium Grid-style farm to add browser-level parallelism on top of the machine-level split, though desktop and mobile portions still need their own dedicated sessions.