| PROCESSOR_AFFINITY | |
| ------------------ | |
| .. versionadded:: 3.12 | |
| Set to a true value to ask CTest to launch the test process with CPU affinity | |
| for a fixed set of processors. If enabled and supported for the current | |
| platform, CTest will choose a set of processors to place in the CPU affinity | |
| mask when launching the test process. The number of processors in the set is | |
| determined by the :prop_test:`PROCESSORS` test property or the number of | |
| processors available to CTest, whichever is smaller. The set of processors | |
| chosen will be disjoint from the processors assigned to other concurrently | |
| running tests that also have the ``PROCESSOR_AFFINITY`` property enabled. | |