#! /bin/sh
# /*@@
#   @file    MPICH
#   @date    Wed Jul 21 13:27:07 1999
#   @author  Tom Goodale
#   @desc
#            Configuration options for MPI=MPICH
#   @enddesc
#   @version $Header: /mnt/data2/cvs2svn/cvs-repositories/Cactus/lib/make/extras/MPI/MPICH,v 1.22 2005-02-04 11:58:14 tradke Exp $
# @@*/


echo '  MPICH selected'

# MPICH is pretty configerable itself

# Find the directory.
if test -z "$MPICH_DIR" ; then
  echo '  MPICH selected but no MPICH_DIR set. Checking some places...'
  CCTK_Search MPICH_DIR "/usr /usr/local /usr/local/mpich /usr/local/packages/mpich /usr/local/apps/mpich /usr/lib/mpich /usr/local/lib/mpich $HOME" include/mpi_errno.h
  if test -z "$MPICH_DIR" ; then
    if test -n "$MPICH_ARCH" ; then
      CCTK_Search MPICH_DIR "/usr/local/mpich/$MPICH_ARCH /usr/local/packages/mpich/$MPICH_ARCH /usr/local/apps/mpich/$MPICH_ARCH /usr/lib/mpich/$MPICH_ARCH /usr/local/lib/mpich/$MPICH_ARCH $HOME/$MPICH_ARCH" include/mpi_errno.h
      if test -z "$MPICH_DIR" ; then
        if test -n "$MPICH_DEVICE" ; then
          CCTK_Search MPICH_DIR "/usr/local/mpich/$MPICH_ARCH/$MPICH_DEVICE /usr/local/packages/mpich/$MPICH_ARCH/$MPICH_DEVICE /usr/local/apps/mpich/$MPICH_ARCH/$MPICH_DEVICE /usr/lib/mpich/$MPICH_ARCH/$MPICH_DEVICE /usr/local/lib/mpich/$MPICH_ARCH/$MPICH_DEVICE $HOME/$MPICH_ARCH/$MPICH_DEVICE" include/mpi_errno.h
          if test -z "$MPICH_DIR" ; then
            CCTK_Search MPICH_DIR "/usr/local/mpich/$MPICH_DEVICE /usr/local/packages/mpich/$MPICH_DEVICE /usr/local/apps/mpich/$MPICH_DEVICE /usr/lib/mpich/$MPICH_DEVICE /usr/local/lib/mpich/$MPICH_DEVICE $HOME/$MPICH_DEVICE" include/mpi_errno.h
          fi
        fi
      fi
    else
      CCTK_Search MPICH_DIR "/usr/local/mpich/$MPICH_DEVICE /usr/local/packages/mpich/$MPICH_DEVICE /usr/local/apps/mpich/$MPICH_DEVICE /usr/lib/mpich/$MPICH_DEVICE /usr/local/lib/mpich/$MPICH_DEVICE $HOME/$MPICH_DEVICE" include/mpi_errno.h

    fi
  fi
  if test -z "$MPICH_DIR" ; then
    echo '  Unable to locate the MPICH directory - please set MPICH_DIR'
    exit 2
  fi
fi

# Find the MPICH architecture

if test -z "$MPICH_ARCH" ; then
  if test -x "$MPICH_DIR/bin/tarch" ; then
    MPICH_ARCH=`$MPICH_DIR/bin/tarch`
    echo "  MPICH architecture is $MPICH_ARCH"
  else
    echo "  Cannot execute $MPICH_DIR/bin/tarch"
    exit 2
  fi
fi

# Find the MPICH device - this isn't necessary for mpich-1.2.0

if test -d "$MPICH_DIR/build/$MPICH_ARCH" ; then
  if test -z "$MPICH_DEVICE" ; then
    echo '  MPICH selected but no MPICH_DEVICE set. Checking for one...'
    CCTK_Search MPICH_DEVICE 'ch_p4 ch_shmem globus ch_gm' lib $MPICH_DIR/build/$MPICH_ARCH/$MPICH_DEVICE
    if test -z "$MPICH_DEVICE" ; then
      echo '  Unable to determine the MPICH device - please set MPICH_DEVICE'
      exit 2
    fi
    echo "  MPICH device is $MPICH_DEVICE"
  fi
fi

# Work out MPICH version

if test -d "$MPICH_DIR/build/$MPICH_ARCH" ; then
  MPICH_LIB_DIR="$MPICH_DIR/build/$MPICH_ARCH/$MPICH_DEVICE/lib"
  MPICH_INC_DIRS="$MPICH_DIR/include $MPICH_DIR/build/$MPICH_ARCH/$MPICH_DEVICE/include"
else
  # don't explicitely add standard include search paths
  if test "$MPICH_DIR" != '/usr' -a "$MPICH_DIR" != '/usr/local'; then
    MPICH_LIB_DIR="$MPICH_DIR/lib"
    MPICH_INC_DIRS="$MPICH_DIR/include"
  fi
fi

# Select the device and any special options for it.

case "$MPICH_DEVICE" in

  globus)
############################# Globus device ##################################
# We use the Makefile.mpich to obtain the include and library paths and libs
# for Globus. These are already prefixed by -I, -L, and -l resp. so we have to
# get rid of these. The Cactus makefile will add them later again.
    if test -z "$GLOBUS_LIB_DIR" ; then
      echo '  GLOBUS selected, but GLOBUS_LIB_DIR not set !'
      exit 2
    fi
    GLOBUS_MPICH_MAKEFILE="$GLOBUS_LIB_DIR/../etc/Makefile.mpich"
    if test ! -r "$GLOBUS_MPICH_MAKEFILE" ; then
      echo "  No Makefile \"$GLOBUS_MPICH_MAKEFILE\" found !"
      echo '  Did you set GLOBUS_LIB_DIR correctly ?'
      exit 2
    fi

    GLOBUS_INC_DIRS=`${MAKE-make} -s -f $GLOBUS_MPICH_MAKEFILE userincdir`
    GLOBUS_INC_DIRS=`echo " $GLOBUS_INC_DIRS" | sed -e 's/ -I/ /g'`
    MPICH_INC_DIRS="$MPICH_INC_DIRS $GLOBUS_INC_DIRS"

    GLOBUS_LIB_DIRS=`${MAKE-make} -s -f $GLOBUS_MPICH_MAKEFILE userlibpath`
    MPICH_DEVICE_LIB_DIR=`echo " $GLOBUS_LIB_DIRS" | sed -e 's/ -L/ /g'`

    GLOBUS_LIBS=`${MAKE-make} -s -f $GLOBUS_MPICH_MAKEFILE userlib`
    MPICH_DEVICE_LIBS=`echo " $GLOBUS_LIBS" | sed -e 's/ -l/ /g'`
    ;;

  ch_gm)
############################# Myrinet device ##################################
#
    if test -z "$MYRINET_DIR" ; then
      echo '  Myrinet device selected but no MYRINET_DIR set. Checking some places...'
      CCTK_Search MYRINET_DIR '/usr /usr/gm /usr/local /usr/local/gm /usr/local/myrinet /usr/local/packages/myrinet /usr/local/apps/myrinet' lib/libgm.a
      if test -z "$MYRINET_DIR" ; then
        echo '  Unable to locate the Myrinet directory - please set MYRINET_DIR'
        exit 2
      fi
    fi
    MPICH_DEVICE_LIB_DIR="$MYRINET_DIR/lib"
    MPICH_DEVICE_LIBS='gm'
    ;;

  *)
############################# other devices ##################################
    # if an MPICH config file exists, take device libs and libdirs from there
    # otherwise leave them empty
    mpichlib_conf_file="$MPICH_DIR/etc/mpichlib.conf"
    if test -r "$mpichlib_conf_file" ; then
      base_lib_list=`grep BASE_LIB_LIST $mpichlib_conf_file | perl -ne 's/BASE_LIB_LIST="(.+)"/\1/; print'`
      MPI_WITH_PMPI=`grep MPI_WITH_PMPI $mpichlib_conf_file | perl -ne 's/MPI_WITH_PMPI="(.+)"/\1/; print'`
      MPICH_DEVICE_LIB_DIR=`echo "$base_lib_list" | perl -nae '@libdirs = (); foreach $libdir (@F) { push (@libdirs, $libdir) if ($libdir =~ s/^-L(.+)/\1/) } print "@libdirs"'`
      MPICH_DEVICE_LIBS=`echo "$base_lib_list" | perl -nae '@libs = (); foreach $lib (@F) { push (@libs, $lib) if ($lib =~ s/^-l(.+)/\1/) } print "@libs"'`
    else
      MPICH_DEVICE_LIB_DIR=''
      MPICH_DEVICE_LIBS=''
    fi
    ;;
esac

# Work out what the MPICH library is called
if test -r "$MPICH_LIB_DIRS/libmpi.a" ; then
  MPICH_LIB='mpi'
else
  MPICH_LIB='mpich'
  if test "$MPI_WITH_PMPI" = 'no'; then
    MPICH_LIB="$MPICH_LIB pmpich"
  fi
fi

# Set the MPI version name
MPI_VERSION="MPICH_$MPICH_DEVICE"

# Finally set the library lines.
MPI_LIBS="$MPICH_LIB $MPICH_DEVICE_LIBS"
MPI_LIB_DIRS="$MPICH_LIB_DIR $MPICH_DEVICE_LIB_DIR"
MPI_INC_DIRS="$MPICH_INC_DIRS"