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Compilation Flags

Some compilations flags are available to change the behavior of the code:

  • -DBLOCK_GS=X sets the number of ghost points to use (default X=2)
  • -DWAVELET_N=X dictates the interpolation order of the wavelets (default X=2)
  • -DWAVELET_NT=X dictates the moment order of the wavelets (default X=2)
  • -DLOG_ALLRANKS will enable log on every processor. By default, only the master logs
  • -DVERBOSE enable extended logs
  • -DNDEBUG disable the assertion checks and the other debuging sections
  • -DLOG_MUTE disable every logs
  • -DCOLOR_PROF enable color output in the profiler (disabled by default)
  • -DMPI_NONASYNC ask for non-asynchronous MPI calls + remove the fancy optimization options
  • -DOLD_GCC replaces the aligned_alloc by posix_memalign to support GCC 8

To use them, you can append the make command, e.g. to change the wavelet behavior 

make OPTS="-DBLOCK_GS=4 -DWAVELET_N=4"
or add it to the ARCH file: 
override OPTS += -DBLOCK_GS=4 -DWAVELET_N=2

In doubts, you should always run make info to test the different options.

⚠ the order of the wavelet must be compatible with the number of ghost points!