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Remove OpenMP and No threading backends.

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Since c++11, we can depend on C++ threads always being available.
With the recent work on the performance of CXX threading, the
additional complexity of maintaining multiple backends for some
minor performance delta is not worth it

https://github.com/ceres-solver/ceres-solver/issues/886

Change-Id: Idee480b22a498daec9c4366da8589aa58eaf36a1
This commit is contained in:
Sameer Agarwal
2022-11-26 16:02:28 -08:00
parent 352b320ab1
commit 06bfe6ffac
63 changed files with 34 additions and 563 deletions
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cmake/CeresCompileOptionsToComponents.cmake
-4
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@@ -80,10 +80,6 @@ function(ceres_compile_options_to_components CURRENT_CERES_COMPILE_OPTIONS CERES
CERES_NO_ACCELERATE_SPARSE "AccelerateSparse;SparseLinearAlgebraLibrary")
add_to_output_if_not_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR}
CERES_RESTRICT_SCHUR_SPECIALIZATION "SchurSpecializations")
add_to_output_if_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR}
CERES_USE_OPENMP "OpenMP;Multithreading")
add_to_output_if_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR}
CERES_USE_CXX_THREADS "Multithreading")
# Remove duplicates of SparseLinearAlgebraLibrary if multiple sparse backends
# are present.
list(REMOVE_DUPLICATES ${CERES_COMPONENTS_VAR})