Makefile.arch

ifndef ARCHES

# if spack is running, get the arch from it.
ifndef ARCHGUESS
  ifneq (, $(shell which spack))
    #do we have an environment loaded?
    ifeq ("==> No active environment", "$(shell spack env status)")
      #get the current architecture
      SPACKGUESS = $(shell spack arch)
    else
      #get the environment
      SPACKGUESS = $(lastword $(shell spack env status))
    endif
    #either way, have we already set up a build directory? If so, use that.
    ifneq (, $(wildcard build/${SPACKGUESS}/CMakeCache.txt))
      ARCHGUESS = ${SPACKGUESS}
    endif
    
  endif
endif

ifndef ARCHGUESS
# guess hostname with hostname command, stripping off all numbers
HOSTNAME := $(shell hostname -s | sed  's/[0-9]*//g')

ifeq ($(HOSTNAME),bgqfen)  
  ARCHGUESS = spi
#  ARCHGUESS = q32
endif
ifeq ($(HOSTNAME),rzuseqlac)  
  ARCHGUESS = bgq-spi
endif
ifeq ($(HOSTNAME),seqlac)  
  ARCHGUESS = bgq-spi
endif
ifeq ($(HOSTNAME),vulcanlac)  
  ARCHGUESS = bgq-spi
endif
ifeq ($(HOSTNAME),dawn)  
  ARCHGUESS = bgp
endif
ifeq ($(HOSTNAME),dawndev)
  ARCHGUESS = bgp
endif
ifeq ($(HOSTNAME),udawn)
  ARCHGUESS = bgp
endif
ifeq ($(HOSTNAME),tambo)
  ARCHGUESS = tambo
endif
ifeq ($(HOSTNAME),rzdawndev)
  ARCHGUESS = bgp
endif
ifeq ($(HOSTNAME),bgl)  
  ARCHGUESS = bgl
endif
ifeq ($(HOSTNAME),ubgl)  
  ARCHGUESS = bgl
endif
ifeq ($(HOSTNAME),atlas)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),oslic)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),ansel)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),aztec)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),cab)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),syrah)
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),surface)
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),quartz)
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),edge)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),minos)  
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),rhea)
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),hopi)
  ARCHGUESS = peloton
endif
ifeq ($(HOSTNAME),tux)
  ARCHGUESS = linux_gnu
endif
ifeq ($(HOSTNAME),sole)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),largo)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),silence)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),polgara)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),blackcomb)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),whistler)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),cypress)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),soifon)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),rzmanta)
  ARCHGUESS = gpu-clang-default
endif
ifeq ($(HOSTNAME),pascal)
  ARCHGUESS = gpu-clang-default
endif
ifeq ($(HOSTNAME),ray)
  ARCHGUESS = gpu-clang-default
endif
ifeq ($(HOSTNAME),surface)
  ARCHGUESS = gpu-clang-default
endif
ifeq ($(HOSTNAME),sierra)
  ARCHGUESS = sierra
endif
ifeq ($(HOSTNAME),prince)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),clogin)
  ARCHGUESS = r92
endif
ifeq ($(HOSTNAME),pascal)
  ARCHGUESS = pascal
endif
ifeq ($(HOSTNAME),crestone)
  ARCHGUESS = osx
endif
ifeq ($(HOSTNAME),lassen)
  ARCHGUESS = sierra
endif
ifeq ($(HOSTNAME),araboth)
  ARCHGUESS = myopenmpi
endif
endif

#fall back if everything else fails
ifndef ARCHGUESS
   ARCHGUESS = mpi-default
   $(info Unrecognized build host.  Edit Makefile.arch)
   $(info Using $(ARCHGUESS))
endif
endif