My bad, we're not using nmake but msbuild in Jenkins (command line only). Judging from the
compilation speed, I'm pretty sure it respects the /MP flag.
Best regards
Andreas
On 20.09.2012 18:24, Bill Hoffman wrote:
nmake does not do parallel builds. Try using jom.
http://blog.qt.digia.com/2009/03/27/speeding-up-visual-c-qt-builds/
http://qt-project.org/wiki/jom
/MP only works from the VS IDE.
On 9/20/2012 11:34 AM, Andreas Haferburg wrote:
Hi Yuchen,
we're using the same way to enable /MP, and it works for us. You didn't
say exactly what doesn't work, so I'm left to guessing.
Have you checked in Visual Studio if the flag is set (Project
properties->C/C++->Command Line)? Maybe there's a conflicting option
enabled? Or maybe you're changing the CMAKE_CXX_FLAGS variable too late,
e.g. after calling add_executable()?
Have you checked the value in Tools->Options->Projects and
Solutions->VC++ Project Settings->Maximum ...
Best regards,
Andreas
On 20.09.2012 10:45, Loaden wrote:
Hi, there!
I am using Windows SDK 7.1 + nmake + CMake for building Windows
applications.
Follow these:
http://www.cmake.org/pipermail/cmake/2009-April/028668.html
http://msdn.microsoft.com/en-us/library/bb385193.aspx
I can't make /MP option works after this change in CMake's main
CMakeLists.txt
if (MSVC)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /MP")
message(STATUS "CMAKE_CXX_FLAGS = ${CMAKE_CXX_FLAGS}")
message(STATUS "CMAKE_C_FLAGS = ${CMAKE_C_FLAGS}")
endif()
I know Jom which is a good choice for speed up compilation, but some
times, it will broken my builds.
See: http://qt-project.org/wiki/jom
Am I lost some option? does there exist an valid way?
or, It's just a bug from CMake self?
Thanks a lot!
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Best Regards
Yuchen
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