2018-01-26 17:06:56 +01:00
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CTEST_PARALLEL_LEVEL
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--------------------
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2019-11-11 23:01:05 +01:00
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.. include:: ENV_VAR.txt
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2024-04-14 22:45:38 +02:00
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Specify the number of tests for CTest to run in parallel.
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For example, if ``CTEST_PARALLEL_LEVEL`` is set to 8, CTest will run
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up to 8 tests concurrently as if ``ctest`` were invoked with the
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:option:`--parallel 8 <ctest --parallel>` option.
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.. versionchanged:: 3.29
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The value may be empty, or ``0``, to let ctest use a default level of
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parallelism, or unbounded parallelism, respectively, as documented by
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the :option:`ctest --parallel` option.
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On Windows, environment variables cannot be set to an empty string.
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CTest will interpret a whitespace-only string as empty.
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In CMake 3.28 and earlier, an empty or ``0`` value was equivalent to ``1``.
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See :manual:`ctest(1)` for more information on parallel test execution.
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