#! /bin/sh
# /*@@
#   @file      CUSTOM
#   @date      Wed Jul 21 13:27:07 1999
#   @author    Tom Goodale
#   @desc 
#   
#   @enddesc
#   @version $Header: /mnt/data2/cvs2svn/cvs-repositories/Cactus/lib/make/extras/MPI/MPICH,v 1.12 2001-01-19 13:30:05 tradke Exp $
# @@*/


echo "MPICH selected"

# MPICH is pretty configerable itself

# Find the directory.
if test -z "$MPICH_DIR" ; then
   echo "MPICH selected but no MPICH_DIR set... Checking some places"
   CCTK_Search MPICH_DIR "/usr /usr/local /usr/local/mpich /usr/local/packages/mpich /usr/local/apps/mpich /usr/lib/mpich /usr/local/lib/mpich" include/mpe.h
   if test -z "$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" include/mpe.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" include/mpe.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" include/mpe.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" include/mpe.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
  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/$MPICH_DEVICE/include"
else
  MPICH_LIB_DIR="$MPICH_DIR/lib"
  MPICH_INC_DIRS="$MPICH_DIR/include"
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 library paths and libs for Globus.
# These are already prefixed by -L and -l resp. so we have to get rid of these.
# The Cactus makefile will add them later again.
   if test -z "$GLOBUS_LIB_DIR" ; then
     echo "GLOBUS selected, but GLOBUS_LIB_DIR not set !"
     exit 2
   fi
   if ! test -r "$GLOBUS_LIB_DIR/../etc/Makefile.mpich" ; then
     echo "No Makefile.mpich found in \$GLOBUS_LIB_DIR/../etc/ !"
     echo "Did you set GLOBUS_LIB_DIR correctly ?"
     exit 2
   fi

   GLOBUS_LIB_DIRS=`${MAKE-make} -s -f $GLOBUS_LIB_DIR/../etc/Makefile.mpich userlibpath`
   MPICH_DEVICE_LIB_DIR=`echo " $GLOBUS_LIB_DIRS" | sed -e 's/ -L/ /g'`

   GLOBUS_LIBS=`${MAKE-make} -s -f $GLOBUS_LIB_DIR/../etc/Makefile.mpich userlib`
   MPICH_DEVICE_LIBS=`echo " $GLOBUS_LIBS" | sed -e 's/ -l/ /g'`
   ;;

 ch_gm)
############################# Myrinet device ##################################
#
   if test -z "$MYRINET_DIR" ; then
      echo "Myrinet device selected but no MYRINET_DIR set... Checking some places"
      CCTK_Search MYRINET_DIR "/usr /usr/local /usr/local/myrinet /usr/local/packages/myrinet /usr/local/apps/myrinet" lib/libgm.a
      if test -z "$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 ##################################
#
   MPICH_DEVICE_LIB_DIR=""
   MPICH_DEVICE_LIBS=""
   ;;
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
fi

# Finally set the library lines.

MPI_LIBS="$MPICH_LIB $MPICH_DEVICE_LIBS" 
MPI_LIB_DIRS="$MPICH_DEVICE_LIB_DIR $MPICH_LIB_DIR"
MPI_INC_DIRS="$MPICH_INC_DIRS"