Makefile.in_gnu_impi

# Compiler and Linker
CC = gcc
MPICC = mpicc 
MPIFC = mpif90 
LD = $(MPIFC)

# Optimization specs for compiler - used for FESOM an parms.
# Metis falls back to conservative and non-compiler specific -O2, as
# it is only used in the less runtime-critical setup phase. 
OPT  = -O3 -march=native -funroll-loops -ffree-line-length-none
COPT = -O3 -march=native -funroll-loops -DLINUX -DUNDER_ -DMPI2 -Iinclude
## Options for debugging:
# OPT = -g -fbounds-check -fbacktrace

# Preprocessor flags for FESOM2
CPP_DEFS = -DDISABLE_MULTITHREADING

# NetCDF library and include definitions
NCFDIR   = /global/AWIsoft/netcdf/4.6.1_gnu
NC_LIB   = -L$(NCFDIR)/lib -Wl,-rpath,$(NCFDIR)/lib -lnetcdff
NC_INC   = -I$(NCFDIR)/include

# Definitions for MPI, if not set by compiler wrappers
MPIROOT = 
MPI_LIB = 
MPI_INC = 

## For partitioning, the FESOM initialization offers an interface to Metis 5. 
## The option -DPART_WEIGHTED distributes 2D _and_ 3D-nodes equally, but the 
## partitioning might be quite irregular.
## Without DPART_WEIGHTED, only the number of 2D nodes is considered for load balancing.
## You can start Metis 5 with different random seeds -> different partitions. 

METIS_DEFS = -DMETIS_VERSION=5 -DPART_WEIGHTED -DMETISRANDOMSEED=35243
# METISRANDDOMSEED: any integer

# Used to compile the fesom wrapper to parms
PARMS_DEFS = -DUSE_MPI -DREAL=double -DDBL  -DVOID_POINTER_SIZE_8

#######################################################
# for pARMS and metis Library, archive and options

AR     = ar qv
RANLIB = ranlib