# -*- mode: makefile -*-

# LFM currently supports the following resolutions:
#   53x24x32 on 1,2,4,8 (aka "single) cpus
#   53x48x64 on 1,2,4,8,24 (aka "double") cpus
#   106x96x128 on 9,18,36,72,144 (aka "quad") cpus
# Other (infrequently used) resolutoins:
#   106x48x64
#   212x96x128
#   212x192x256
#
# The ${NI}, ${NJ}, ${NK}, ${NP} computed here are used to setup soft
# links to pre-computed grid resolutions set via the Make target
#   links[ni]x[nj]x[nk]x[n_processors]
#
# In the future this file may define TIEGCM grid resolution (2.5 or 5 degree).

ifndef RESOLUTION
  ifndef NI
    $(info "NI not defined.  Defaulting to single res")
    RESOLUTION=single
  endif
  ifndef NJ
    $(info "NJ not defined.  Defaulting to single res")
    RESOLUTION=single
  endif
  ifndef NK
    $(info "NK not defined.  Defaulting to single res")
    RESOLUTION=single
  endif
  ifndef NP
    $(info "NP not defined.  Defaulting to single res")
    RESOLUTION=single
  endif
endif
ifdef RESOLUTION
  ifeq (${RESOLUTION},single)
    override NI=53
    override NJ=24
    override NK=32
    override NP=8
  endif
  ifeq (${RESOLUTION},double)
    override NI=53
    override NJ=48
    override NK=64
    override NP=24
  endif
  ifeq (${RESOLUTION},quad)
    override NI=106
    override NJ=96
    override NK=128
    override NP=144
  endif
$(info "RESOLUTION=${RESOLUTION}:  NI=${NI}, NJ=${NJ}, NK=${NK}, NP=${NP}")
else
$(info "Will build for resolution NI=${NI}, NJ=${NJ}, NK=${NK}, NP=${NP}")
endif