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| author |   ghostop14 <ghostop14@gmail.com> | 2020-01-29 17:20:16 -0500 |
|---|---|---|
| committer |   Michael Dickens <michael.dickens@ettus.com> | 2020-02-14 10:05:12 -0500 |
| commit | aa0bd44efbf8afdfd93d627e486c1427426b76f9 (patch) | |
| tree | dd2acb4ebed83dc5a553678ba46b76424690b90a /CMakeLists.txt | |
| parent | gr-dtv: Use new FFT allocation scheme for DVB-T2 blocks. (diff) | |
| download | gnuradio-aa0bd44efbf8afdfd93d627e486c1427426b76f9.tar.xz gnuradio-aa0bd44efbf8afdfd93d627e486c1427426b76f9.zip | |
gr-digital: Improve Performance of Costas Loop
This update is focused on improving the throughput of the Costas
loop, however some changes are more global performance enhancements
as this PR has evolved. Updates include an ENABLE_NATIVE added to
CMake, which is off by default but enables native compiling (including
FMA support) if desired; sincos was inlined in sincos.h and sincos.cc
was removed from the appropriate CMake to improve sincos speed, some
constants were added to math.h, inlined functions in costas loop and
nco.h, used switch instead of function pointer (much faster), and
used fast complex multiply to get around all the range checking in
the standard complex.h complex multiply function on all builds.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 007166bbf..066e973f6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -419,6 +419,20 @@ message(STATUS " Override with -DENABLE_INTERNAL_VOLK=ON/OFF") find_package(LOG4CPP REQUIRED) ######################################################################## +# Setup Native Capabilities Flag +######################################################################## +option(ENABLE_NATIVE "Enable native build optimizations" OFF) +IF(UNIX) + IF (ENABLE_NATIVE) + MESSAGE(STATUS "Found GNU Radio native optimization flag. Setting native CPU optimization flags.") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -ftree-vectorize") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native -ftree-vectorize") + ELSE (ENABLE_NATIVE) + MESSAGE(STATUS "Not using additional GNU Radio native architecture optimizations.") + ENDIF (ENABLE_NATIVE) +ENDIF(UNIX) + +######################################################################## # Disable complex math NaN/INFO range checking for performance ######################################################################## check_cxx_compiler_flag(-fcx-limited-range HAVE_CX_LIMITED_RANGE) |