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Experimenting with C++ threads to replace Intel TBB #3267

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Experimenting with C++ threads to replace Intel TBB #3267

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9f72cc3
wip: reduce_sum
syclik Nov 21, 2025
a7a95fb
10x slower
syclik Dec 4, 2025
5e78da0
1.2x
syclik Dec 4, 2025
a124301
almost working version
syclik Dec 8, 2025
99c269b
better implementation, still hangs
syclik Dec 8, 2025
1526101
updating team_thread_pool.hpp
syclik Dec 12, 2025
0258923
updates to team_thread_pool.hpp
syclik Dec 13, 2025
1cc87bb
updating make
syclik Dec 13, 2025
1ada1de
map_rect
syclik Dec 23, 2025
28a32e8
adding concurrent_vector
syclik Dec 23, 2025
ac8a0de
more changes
syclik Dec 23, 2025
cc68a9f
fixed header
syclik Dec 23, 2025
593440f
[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1
stan-buildbot Dec 23, 2025
9d4a4ae
updating concurrent_vector
syclik Dec 24, 2025
1b7c545
[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1
stan-buildbot Dec 24, 2025
00c81b8
update
syclik Dec 24, 2025
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5 changes: 1 addition & 4 deletions make/compiler_flags
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Original file line number Diff line number Diff line change
Expand Up @@ -303,9 +303,6 @@ ifneq ($(OS), Windows_NT)
LDFLAGS_TBB_RPATH ?= -Wl,-rpath,"$(TBB_LIB)"
endif

LDFLAGS_TBB ?= -Wl,-L,"$(TBB_LIB)" $(LDFLAGS_TBB_DTAGS) $(LDFLAGS_TBB_RPATH)

LDLIBS_TBB ?= -ltbb

else

Expand Down Expand Up @@ -342,7 +339,7 @@ endif
# Sets up CXXFLAGS_THREADS to use threading

ifdef STAN_THREADS
CXXFLAGS_THREADS ?= -DSTAN_THREADS
CXXFLAGS_THREADS ?= -DSTAN_THREADS -pthread
endif

################################################################################
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2 changes: 1 addition & 1 deletion make/standalone
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Expand Up @@ -22,7 +22,7 @@ MATH ?= $(realpath $(MATH_MAKE)..)/
# The sundials libraries are only needed for
# programs using the stiff ode solver or the
# algebra solver
MATH_LIBS ?= $(SUNDIALS_TARGETS) $(MPI_TARGETS) $(TBB_TARGETS)
MATH_LIBS ?= $(SUNDIALS_TARGETS) $(MPI_TARGETS)

LDLIBS += $(MATH_LIBS)

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