#!/bin/csh -f
#
# This file sets up the appropriate environmental variables and paths
# for CNSsolve. In the case of the same machines with different versions
# of the OS, backward compatibility is assumed - ie. a later version will
# be setup for a previous version of the OS if nothing else is available.
#
#   written by: Paul Adams
#
#   copyright Yale University
#
# ==========================================================================
#
# >>>>>> Important: define the location of the CNSsolve directory <<<<<<
#
# CHANGE THE NEXT LINE TO POINT TO THE LOCATION OF THE CNSsolve DIRECTORY

	    setenv CNS_SOLVE /home/software/software/cns_solve_1.31-UU-large
	
#
# ==========================================================================
#
# full expansion of the CNS_SOLVE variable prior to use.
#
setenv CNS_SOLVE $CNS_SOLVE
#
# ==========================================================================
#
# get the machine architecture
#
if ( -d $CNS_SOLVE ) then
  if ( ! $?CNS_ARCH ) setenv CNS_ARCH `$CNS_SOLVE/bin/getarch`
else
  setenv CNS_ARCH 'unknown'
endif
#
# ==========================================================================
#
# system variables for OpenMP
#
# The default stack sizes are usually insufficient, especially if
# CNS is compiled with the Intel compilers. If the stack sizes are too
# small segfaults may occur. Recommended setting for "stacksize":
limit stacksize unlimited
#
# KMP_STACKSIZE is specific for Intel ifort, icc:
setenv KMP_STACKSIZE 64m
#
# OMP_STACKSIZE is used by the Portland group compiler and may not
# be required, so it is commented out here:
##setenv OMP_STACKSIZE 32m
#
#
# Uncomment the following line and change as appropriate to set the number 
# of processors (threads) to use. 
###setenv OMP_NUM_THREADS 4
#
# ==========================================================================
#
# general environmental variables
#
setenv CNS_LIB $CNS_SOLVE/libraries
setenv CNS_MODULE $CNS_SOLVE/modules
setenv CNS_TOPPAR $CNS_LIB/toppar
setenv CNS_CONFDB $CNS_LIB/confdb
setenv CNS_XTALLIB $CNS_LIB/xtal
setenv CNS_NMRLIB $CNS_LIB/nmr
setenv CNS_XRAYLIB $CNS_LIB/xray
setenv CNS_XTALMODULE $CNS_MODULE/xtal
setenv CNS_NMRMODULE $CNS_MODULE/nmr
setenv CNS_HELPLIB $CNS_SOLVE/helplib
#
# general user aliases
#
alias cns_web $CNS_SOLVE/bin/cns_web
alias cns_header $CNS_SOLVE/bin/cns_header
alias cns_info 'cat $CNS_SOLVE/bin/cns_info'
alias cns_transfer $CNS_SOLVE/bin/cns_transfer
if ( -x $CNS_SOLVE/bin/cns_edit_local ) then
  alias cns_edit $CNS_SOLVE/bin/cns_edit_local
else
  alias cns_edit $CNS_SOLVE/bin/cns_edit
endif
alias run_tutorial 'csh -f tutorial.csh'
alias cns_import_cif $CNS_SOLVE/bin/cns_import_cif
#
# g77 compilation and use
#
alias g77on "setenv CNS_G77; source $CNS_SOLVE/cns_solve_env"
alias g77off "unsetenv CNS_G77; source $CNS_SOLVE/cns_solve_env"
#
# developer aliases
#
alias run_tests $CNS_SOLVE/bin/run_tests
alias run_diffs $CNS_SOLVE/bin/run_diffs
alias maketar $CNS_SOLVE/bin/maketar
alias create_patch $CNS_SOLVE/bin/create_patch
#
# ==========================================================================
#
# re-alias make on Linux (stops directory printing)
#
if ( $CNS_ARCH =~ *linux* ) then
  alias make 'make --no-print-directory'
endif
# 
# to do expansions - unset noglob just in case user has it otherwise
#
unset noglob
#
# try to set up appropriate path
#
# first strip off any trailing information (eg. _g77)
#
setenv CNS_ARCH `echo ${CNS_ARCH} | sed -e 's/_g77//g'`
#
set cns_vendor=`echo $CNS_ARCH | awk 'BEGIN{FS="-"}{print $1}'`
set cns_cpu=`echo $CNS_ARCH | awk 'BEGIN{FS="-"}{print $2}'`
set cns_os=`echo $CNS_ARCH | awk 'BEGIN{FS="-"}{print $3}'`
set cns_major=`echo $CNS_ARCH | awk 'BEGIN{FS="-"}{print $4}'`
set cns_minor=`echo $cns_major | sed -e 's/\./ /g'`
#
# if we are looking for a specific type of setup then limit search
#
if ( ! $?CNS_G77 ) then
  set cns_dirs=`/bin/ls -d $CNS_SOLVE/$cns_vendor-* | & awk '{if (($2 != "No") && ($3 != "No"))print}' | awk 'BEGIN{FS="/"}{print $NF}' | sort -t\- -n -r -k 3 -k 4`
else
  setenv CNS_ARCH ${CNS_ARCH}_g77
  set cns_dirs=`/bin/ls -d $CNS_SOLVE/$cns_vendor-*_g77 | & awk '{if (($2 != "No") && ($3 != "No"))print}' | awk 'BEGIN{FS="/"}{print $NF}' | sort -t\- -n -r -k 3 -k 4`
endif
#
# first look for an exact match (with os version)
#
set cns_found=0
if ( $#cns_dirs > 0 ) then
  foreach cns_dir ( $cns_dirs )  
    set cns_tmp_major=`echo $cns_dir | awk 'BEGIN{FS="-"}{print $4}'`
    if ( -d $CNS_SOLVE/$cns_dir/bin ) then
      if ( $cns_dir == ${cns_vendor}-${cns_cpu}-${cns_os}-${cns_major} || \
           $cns_dir == ${cns_vendor}-${cns_cpu}-${cns_os}-${cns_major}_g77 ) then
        set cns_archenv=$cns_dir
        set cns_found=1
      endif
    endif
  end
#
# now look for an exact match (without os version)
#
  if ( ! $cns_found ) then
    foreach cns_dir ( $cns_dirs )  
      if ( -d $CNS_SOLVE/$cns_dir/bin ) then
        if ( $cns_dir == ${cns_vendor}-${cns_cpu}-${cns_os} || \
             $cns_dir == ${cns_vendor}-${cns_cpu}-${cns_os}_g77 ) then
          set cns_archenv=$cns_dir
          set cns_found=1
        endif
      endif
    end
  endif
#
# now look for a backwards compatible match (with os version major/minor)
#
  if ( ! $cns_found ) then
    foreach cns_dir ( $cns_dirs )  
      if ( ! $cns_found ) then
        set cns_tmp_major=`echo $cns_dir | awk 'BEGIN{FS="-"}{print $4}' | sed 's/_g77//g'`
        if ( -d $CNS_SOLVE/$cns_dir/bin ) then
          if ( $cns_dir =~ ${cns_vendor}-${cns_cpu}-${cns_os}-* ) then
	    set osv_test=`echo $cns_major $cns_tmp_major | awk '{if ($1 > $2) print 1}'`
            if ( $osv_test ) then
              set cns_archenv=$cns_dir
	      set cns_found=1
            endif
          endif
        endif
      endif
    end
  endif
#
# now look for a wildcard match on cpu
#
  if ( ! $cns_found ) then
    set cpu_cpu=`echo $cns_cpu | sed 's/[0-9]*\.*[0-9]*$//'`
    set cpu_ver=`echo $cns_cpu | sed 's/[A-Za-z]*//'`
    foreach cns_dir ( $cns_dirs )  
      if ( ! $cns_found ) then
        set cns_tmp_cpu=`echo $cns_dir | awk 'BEGIN{FS="-"}{print $2}' | sed 's/[0-9]*\.*[0-9]*$//'`
        set cns_tmp_ver=`echo $cns_dir | awk 'BEGIN{FS="-"}{print $2}' | sed 's/[A-Za-z]*//'`
        if ( -d $CNS_SOLVE/$cns_dir/bin ) then
          if ( $cns_dir =~ ${cns_vendor}-${cpu_cpu}*-${cns_os}-${cns_major} || \
               $cns_dir =~ ${cns_vendor}-${cpu_cpu}*-${cns_os}-${cns_major}_g77 ) then
	    set cpu_test=`echo $cpu_ver $cns_tmp_ver | awk '{if ($1 > $2) print 1}'`
            if ( $cpu_test ) then
              set cns_archenv=$cns_dir
	      set cns_found=1
            endif
          endif
        endif
      endif
    end
  endif
endif
#
# if found set environment
#
if ( $cns_found ) then
  #
  # set installation and source directory
  #
  setenv CNS_INST $CNS_SOLVE/$cns_archenv
  setenv CNS_SOURCE $CNS_INST/source
  #
  # path for CNSsolve utility programs
  #
  if ( -d $CNS_SOLVE/$cns_archenv/utils ) then
    set path=(`$CNS_SOLVE/bin/modify_path $CNS_SOLVE/$cns_archenv/utils`)
  endif
  #
  # path for CNSsolve executable if installed
  #
  if ( -d $CNS_SOLVE/$cns_archenv/bin ) then
    set path=(`$CNS_SOLVE/bin/modify_path $CNS_SOLVE/$cns_archenv/bin`)
  endif
endif
#
unset cns_vendor cns_cpu cns_os cns_major cns_minor cns_tmp_major cns_tmp_minor
unset cns_dir cns_dirs cns_found cns_archenv cns_diff cns_count cns_same
unset cpu_cpu cpu_ver cns_tmp_cpu cns_tmp_ver cpu_test osv_test
#