added a working code e structured code for profiling

.gitignore

@@ -0,0 +1,37 @@
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Solution files
+plot*
+restart.in
+residual.in

Makefile

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+FC = gfortran
+EXE = run
+
+OP_COMP = -O3 -fopenmp
+OP_LINK = -O3 -fopenmp
+
+SRC = main.f90 \
+constant.f90 \
+declaration.f90 \
+grid.f90 \
+misc.f90 \
+boundary.f90 \
+weno.f90 \
+flux.f90 \
+odesolver.f90 
+
+OBJ = main.o \
+constant.o \
+declaration.o \
+grid.o \
+misc.o  \
+boundary.o \
+weno.o \
+flux.o \
+odesolver.o
+
+all: $(EXE)
+
+compile: $(OBJ)
+
+$(EXE): $(OBJ)
+	$(FC) -o $(EXE) $(OBJ) $(OP_LINK)
+
+# $(EXE): $(OBJ)
+# 	$(FC) $(OP_LINK) -o $(EXE) $(OBJ)
+
+$(OBJ):
+	$(FC) $(OP_COMP) -c $(SRC_DIR)$(@:.o=.f90) -o $@
+
+# %.o %.mod: %.f90
+# 	$(FC) -c $(OP_COMP) $<
+
+.PHONY = clean
+
+clean:
+	rm $(OBJ) *.mod
+
+cleaner:
+	$(clean)
+	rm $(EXE)
+	rm *.dat
+
+constant.o: constant.f90
+
+declaration.o: declaration.f90 constant.o
+
+grid.o: grid.f90 constant.o declaration.o
+
+misc.o: misc.f90 constant.o declaration.o
+
+boundary.o: boundary.f90 constant.o declaration.o
+
+weno.o: weno.f90 constant.o
+
+flux.o: flux.f90 constant.o declaration.o misc.o weno.o
+
+odesolver.o: odesolver.f90 constant.o declaration.o
+# odesolver.o: odesolver.f90 constant.o declaration.o
+
+# # viscous.o: viscous.f90 constant.o declaration.o
+
+# # gradient.o: gradient.f90 constant.o declaration.o
+
+# # flux.o: flux.f90 constant.o declaration.o
+
+# # residual.o: residual.f90 constant.o declaration.o flux.o 
+
+# # wenonew.o: wenonew.f90 constant.o declaration.o flux.o
+
+# # odesolver.o: odesolver.f90 constant.o declaration.o
+
+# # main.o: main.f90 constant.o declaration.o grid.o misc.o \
+# # 		viscous.o gradient.o residual.o wenonew.o odesolver.o
+
+main.o: main.f90 constant.o declaration.o grid.o misc.o \
+		boundary.o flux.o odesolver.o