[CMake] Ctest building with Multiple Processors

[Michael Jackson]

Actually my interpretation of the manual says that the _tests_ will be run in parallel. What I want is the _Build_ to be run in parallel.

Thanks
Mike Jackson


On Sep 4, 2014, at 5:14 PM, Iosif Neitzke <iosif.neitzke+cmake at gmail.com> wrote:

> Does ctest -j <jobs>, or ctest --parallel <jobs> behave differently?
> 
> http://www.cmake.org/cmake/help/v3.0/manual/ctest.1.html
> 
> On Wed, Sep 3, 2014 at 2:31 PM, Michael Jackson
> <mike.jackson at bluequartz.net> wrote:
>> I am exploring CTest/CDash with out project and I was trying to figure out how to have CTest use all my cores for builds. So far no luck with some snippets from Google. So far I have the following in a file called CTestConfig.cmake at the top level of my project.
>> 
>> set(CTEST_PROJECT_NAME "DREAM3D")
>> set(CTEST_NIGHTLY_START_TIME "01:00:00 UTC")
>> 
>> set(CTEST_DROP_METHOD "http")
>> set(CTEST_DROP_SITE "my.cdash.org")
>> set(CTEST_DROP_LOCATION "/submit.php?project=DREAM3D")
>> set(CTEST_DROP_SITE_CDASH TRUE)
>> 
>> # Use multiple CPU cores to build
>> include(ProcessorCount)
>> ProcessorCount(N)
>> if(NOT N EQUAL 0)
>>  if(NOT WIN32)
>>    set(CTEST_BUILD_FLAGS "-j${N}")
>>  endif(NOT WIN32)
>>  set(ctest_test_args ${ctest_test_args} PARALLEL_LEVEL ${N})
>> 
>> endif()
>> 
>> 
>> And then I execute CTest like this from my terminal
>> 
>> ctest -D Experimental
>> 
>> 
>> but monitoring my processors says that only a single processor is being used.
>> 
>> Thanks for any help
>> 
>> ---
>> Mike Jackson                 www.bluequartz.net
>> 
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