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+PROCESSORS
+----------
+
+Set to specify how many process slots this test requires.
+
+Denotes the number of processors that this test will require. This is
+typically used for MPI tests, and should be used in conjunction with
+the :command:`ctest_test` ``PARALLEL_LEVEL`` option.
+
+This will also be used to display a weighted test timing result in label and
+subproject summaries in the command line output of :manual:`ctest(1)`. The wall
+clock time for the test run will be multiplied by this property to give a
+better idea of how much cpu resource CTest allocated for the test.