Commit b3345204 authored by Axel Kohlmeyer's avatar Axel Kohlmeyer
Browse files

correct FFT definitions in docs and make -DFFT_KISSFFT explicit in CMake

parent ddd8533d

cmake/CMakeLists.txt

+2 −0
Original line number Diff line number Diff line
@@ -230,6 +230,8 @@ if(PKG_KSPACE) 
    endif()

    include_directories(${${FFT}_INCLUDE_DIRS})

    list(APPEND LAMMPS_LINK_LIBS ${${FFT}_LIBRARIES})

  else()

    add_definitions(-DFFT_KISSFFT)

  endif()

  set(PACK_OPTIMIZATION "PACK_ARRAY" CACHE STRING "Optimization for FFT")

  set_property(CACHE PACK_OPTIMIZATION PROPERTY STRINGS PACK_ARRAY PACK_POINTER PACK_MEMCPY)

doc/src/Build_settings.txt

+2 −2
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ obsolete by its developers. 
 

[CMake variables]:



-D FFT=value              # kiss or fftw3 or fftw2 or mkl, default is fftw3 if found, else kiss

-D FFT=value              # KISSFFT or FFTW3 or FFTW2 or MKL, default is FFTW3 if found, else KISSFFT

-D FFT_SINGLE=value       # yes or no (default), no = double precision

-D FFT_PACK=value         # array (default) or pointer or memcpy :pre
@@ -59,7 +59,7 @@ the FFT library, you can set these variables: 


[Makefile.machine settings]:



FFT_INC = -DFFT_FFTW3         # FFTW3, FFTW2, FFTW (same as FFTW3), MKL, or KISS

FFT_INC = -DFFT_FFTW3         # -DFFT_FFTW3, -DFFT_FFTW2, -DFFT_FFTW (same as -DFFT_FFTW3), -DFFT_MKL, or -DFFT_KISSFFT

                              # default is KISS if not specified

FFT_INC = -DFFT_SINGLE        # do not specify for double precision

FFT_INC = -DFFT_PACK_ARRAY    # or -DFFT_PACK_POINTER or -DFFT_PACK_MEMCPY :pre

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