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Sketcher: Disable Eigen multithread

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Eigen currently only provides multithread for matrix products. It has been reported that it is even slightly slower than single-thread.
Therefore, temporarely the code is commented out. If Eigen ever implements multithread for QR decomposition, then it will make a lot of
sense to enable this.
This commit is contained in:
Abdullah Tahiri
2015-06-22 05:04:48 +02:00
committed by wmayer
parent 230d505554
commit 7aad7ec432
1 changed files with 6 additions and 5 deletions
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11
src/Mod/Sketcher/App/CMakeLists.txt
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@@ -4,11 +4,12 @@ else(MSVC)
add_definitions(-DHAVE_LIMITS_H -DHAVE_CONFIG_H)
endif(MSVC)
find_package(OpenMP)
if (OPENMP_FOUND)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
endif()
# Uncomment this code if you want to try Eigen's multithread
#find_package(OpenMP)
#if (OPENMP_FOUND)
# set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
# set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
#endif()
# set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DEIGEN_NO_DEBUG") # Necessary to avoid SparseQR crash with Eigen 3.2 due to a wrong assertion