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| author | Brad King <brad.king@kitware.com> | 2018-03-01 15:38:15 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2018-03-05 14:21:32 (GMT) |
| commit | 6be53c6695e8d82d3633681f893b79db1de466f0 (patch) | |
| tree | 753efcf002e0af8545df663288627d142a299f80 /Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake | |
| parent | c5428d8db2aebb215b418d72eae99f4a106a82b0 (diff) | |
| download | CMake-6be53c6695e8d82d3633681f893b79db1de466f0.zip CMake-6be53c6695e8d82d3633681f893b79db1de466f0.tar.gz CMake-6be53c6695e8d82d3633681f893b79db1de466f0.tar.bz2 | |
CTest: Add options to control test process affinity to CPUs
In commit v2.8.0~170 (ENH: Added ctest test options PROCESSORS and
RUN_SERIAL, 2009-09-07) CTest learned to track the number of processors
allocated to running tests in order to balance it against the desired
level of parallelism. Extend this idea by introducing a new
`PROCESSOR_AFFINITY` test property to ask that CTest run a test
with the CPU affinity mask set. This will allow a set of tests
that are running concurrently to use disjoint CPU resources.
Diffstat (limited to 'Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake')
| -rw-r--r-- | Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake b/Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake index 0fafea5..3033c9c 100644 --- a/Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake +++ b/Tests/RunCMake/CTestCommandLine/RunCMakeTest.cmake @@ -141,3 +141,23 @@ function(run_TestOutputSize) ) endfunction() run_TestOutputSize() + +function(run_TestAffinity) + set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/TestAffinity) + set(RunCMake_TEST_NO_CLEAN 1) + file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}") + file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}") + # Create a test with affinity enabled. The default PROCESSORS + # value is 1, so our expected output checks that this is the + # number of processors in the mask. + file(WRITE "${RunCMake_TEST_BINARY_DIR}/CTestTestfile.cmake" " + add_test(Affinity \"${TEST_AFFINITY}\") + set_tests_properties(Affinity PROPERTIES PROCESSOR_AFFINITY ON) +") + # Run ctest with a large parallel level so that the value is + # not responsible for capping the number of processors available. + run_cmake_command(TestAffinity ${CMAKE_CTEST_COMMAND} -V -j 64) +endfunction() +if(TEST_AFFINITY) + run_TestAffinity() +endif() |