Makefile reordering

Makefile

@@ -27,9 +27,16 @@ CFLAGS += -I./
 
 FFTWLIBS =
 
+
 # ========================================================
-# CODE OPTIONS
-#
+# CODE OPTIONS FOR THE COMPILATION
+# (refer to the RICK wiki here
+# https://www.ict.inaf.it/gitlab/claudio.gheller/hpc_imaging/-/wikis/home)
+# ========================================================
+
+
+# PARALLEL FFT IMPLEMENTATION
+
 
 # use FFTW (it can be switched on ONLY if MPI is active)
 OPT += -DUSE_FFTW
@@ -40,37 +47,36 @@ OPT += -DUSE_FFTW
 # switch on the OpenMP parallelization
 #OPT += -DUSE_OMP
 
-# write the full 3D cube of gridded visibilities and its FFT transform
-#OPT += -DWRITE_DATA
+# ========================================================
+
+# ACTIVATE PIECES OF THE CODE TO BE PERFORMED
 
-# write the final image
-OPT += -DWRITE_IMAGE
 
 # perform w-stacking phase correction
 OPT += -DPHASE_ON
 
-# Support CFITSIO !!! Remember to add the path to the CFITSIO library to LD_LIBRARY_PATH
-#OPT += -DFITSIO
-
 # Normalize uvw in case it is not done in the binMS
 #OPT += -DNORMALIZE_UVW
 
-# Gridding kernel: GAUSS, GAUSS_HI_PRECISION, KAISERBESSEL
+# ========================================================
+
+# SELECT THE GRIDDING KERNEL: GAUSS, GAUSS_HI_PRECISION, KAISERBESSEL
+
+
 OPT += -DGAUSS_HI_PRECISION
 
 #OPT += -DGAUSS
 
 #OPT += -DKAISERBESSEL
 
-#OPT += -DVERBOSE
-
 # ========================================================
-# ACCELERATION
-#
+
+# GPU OFFLOADING OPTIONS
+
 
 #OPT += -DNVIDIA
 
-#use cuda for GPUs
+# use CUDA for GPUs
 #OPT += -DCUDACC
 
 # use GPU acceleration via OMP 
@@ -82,26 +88,47 @@ OPT += -DGAUSS_HI_PRECISION
 # use NVIDIA GPU to perform the reduce
 #OPT += -DNCCL_REDUCE
 
-# use AMD GPU to perform the reduce
-#OPT += -DRCCL_REDUCE
-
 # use GPU to perform FFT
 #OPT += -DCUFFTMP
 
+# FULL GPU SUPPORT - Recommended for full NVIDIA GPU code execution
+OPT += -DFULL_NVIDIA
+ifeq (FULL_NVIDIA,$(findstring FULL_NVIDIA,$(OPT)))
+OPT += -DCUDACC -DNCCL_REDUCE -DCUFFTMP
+endif
+
 # support for AMD GPUs
 #OPT += __HIP_PLATFORM_AMD__
 
+# use AMD GPU to perform the reduce
+#OPT += -DRCCL_REDUCE
+
+# =======================================================
+
+# OUTPUT HANDLING
+
+
+# Support CFITSIO !!! Remember to add the path to the CFITSIO library to LD_LIBRARY_PATH
+#OPT += -DFITSIO
+
+# write the full 3D cube of gridded visibilities and its FFT transform
+#OPT += -DWRITE_DATA
+
+# write the final image
+OPT += -DWRITE_IMAGE
+
+# =======================================================
+
+# DEVELOPING OPTIONS
+
+
+#OPT += -DVERBOSE
+
 #perform the debugging in the ring implementation
 #OPT += -DDEBUG
 
-# ========================================================
-
-# ========================================================
-#FULL GPU SUPPORT!!!
-OPT += -DFULL_NVIDIA
-ifeq (FULL_NVIDIA,$(findstring FULL_NVIDIA,$(OPT)))
-OPT += -DCUDACC -DNCCL_REDUCE -DCUFFTMP
-endif
+# =======================================================
+# END OF OPTIONS
 # =======================================================
 
 ifeq (USE_OMP,$(findstring USE_OMP,$(OPT)))