/[MITgcm]/MITgcm/tools/build_options/linux_ia32_gfortran
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revision 1.1 by edhill, Thu Apr 28 18:01:19 2005 UTC revision 1.8 by jmc, Fri May 14 21:59:32 2010 UTC
# Line 4  Line 4 
4  #  $Name$  #  $Name$
5  #  #
6    
7  #  This was tested with gcc-gfortran v4.0.0 as shipped in Fedora Core  #  Tested with gcc-gfortran v4.1.1 on FC5, FC6, FC8, using flags
8  #  4-test-2.  MITgcm successfully compiled but the gfortran-built  #              formally for gcc-gfortran 4.3*
9  #  mitgcmuv binary failed to read the "eedata" file.  The gfortran  #       + with gcc-gfortran v4.3.0 on FC9
10  #  docs make it clear that there are known NAMELIST bugs in curreent  #  It fixes the ' \' versus ' &' terminator problem ;
11  #  versions of gfortran and that users should turn to g77 if their  #  some namelist problems remain with old version (The biggest seems
12  #  code encounters these bugs.  Later versions of gfortran will  #     to be the inability to support namelist syntax such as:
13  #  supposedly fix the NAMELIST implementation.  #     fields(1,1) = 'UVELSLT ','VVELSLT ','WVELSLT ',
14    #      which results in run-time errors).
15    
16    #-------
17    # run with OpenMP: needs to set environment var. OMP_NUM_THREADS
18    #    and generally, needs to increase the thread stack-size:
19    #   -  sh,bash:
20    #     > export OMP_NUM_THREADS=2
21    #     > export GOMP_STACKSIZE=400m
22    #   - csh,tcsh:
23    #     > setenv OMP_NUM_THREADS 2
24    #     > setenv GOMP_STACKSIZE 400m
25    #-------
26    
27  FC=gfortran  FC=gfortran
28    F90C=gfortran
29  CC=gcc  CC=gcc
30  DEFINES='-D_BYTESWAPIO -DWORDLENGTH=4'  DEFINES='-DWORDLENGTH=4 -DNML_TERMINATOR'
31  CPP='cpp  -traditional -P'  CPP='cpp -traditional -P'
32  NOOPTFLAGS='-O0'  NOOPTFLAGS='-O0'
33    EXTENDED_SRC_FLAG='-ffixed-line-length-132'
34    OMPFLAG='-fopenmp'
35    
36    if test "x$DEVEL" != x ; then
37        FFLAGS='-g -Wall -W -ffpe-trap=invalid,zero,overflow -fbounds-check'
38    else
39        FFLAGS=''
40    fi
41    
42    # Requires gfortran from 2006 onwards for -fconvert=big-endian
43    FFLAGS="$FFLAGS -fconvert=big-endian -fimplicit-none"
44    #- otherwise, switch to the home-made byte-swap:
45    #DEFINES="-D_BYTESWAPIO $DEFINES"
46    
47  if test "x$IEEE" = x ; then  if test "x$IEEE" = x ; then
48      #  No need for IEEE-754      #  No need for IEEE-754
49      FFLAGS='-Wimplicit -Wunused -Wuninitialized'      FOPTIM='-O3 -funroll-loops'
     FOPTIM='-O3 -malign-double -funroll-loops'  
50  else  else
51      #  Try to follow IEEE-754      #  Try to follow IEEE-754
52      has_sse2=f      has_sse2=f
53      grep flags /proc/cpuinfo | grep sse2 > /dev/null 2>&1  &&  has_sse2=t      grep flags /proc/cpuinfo | grep sse2 > /dev/null 2>&1  &&  has_sse2=t
54      if test "x$has_sse2" = xt ; then      if test "x$has_sse2" = xt ; then
55          FFLAGS='-Wimplicit -Wunused -mfpmath=sse -msse -msse2'          FOPTIM='-O0 -mfpmath=sse -msse -msse2'
56      else      else
57          FFLAGS='-Wimplicit -Wunused -ffloat-store'          FOPTIM='-O0 -ffloat-store'
58      fi      fi
     #  echo 'FFLAGS="'$FFLAGS'"'  
     FOPTIM='-O0 -malign-double'  
59  fi  fi
60    #  version 4.3.0 has problems with option "-malign-double" ;
61  if test -d /usr/include/netcdf-3 ; then  #  may want to put it back with older/newer version (when it works)
62    #FOPTIM="$FOPTIM -malign-double"
63    F90FLAGS=$FFLAGS
64    F90OPTIM=$FOPTIM
65    CFLAGS=$FOPTIM
66    
67    if [ "x$NETCDF_ROOT" != x ] ; then
68        INCLUDEDIR="${NETCDF_ROOT}/include"
69        INCLUDES="-I${NETCDF_ROOT}/include"
70        LIBDIR="${NETCDF_ROOT}/lib"
71        LIBS="-L${NETCDF_ROOT}/lib"
72    elif [ "x$NETCDF_HOME" != x ]; then
73        INCLUDEDIR="${NETCDF_HOME}/include"
74        INCLUDES="-I${NETCDF_HOME}/include"
75        LIBDIR="${NETCDF_HOME}/lib"
76        LIBS="-L${NETCDF_HOME}/lib"
77    elif [ "x$NETCDF_INC" != x -a "x$NETCDF_LIB" != x ]; then
78        NETCDF_INC=`echo $NETCDF_INC | sed 's/-I//g'`
79        NETCDF_LIB=`echo $NETCDF_LIB | sed 's/-L//g'`
80        INCLUDEDIR="${NETCDF_INC}"
81        INCLUDES="-I${NETCDF_INC}"
82        LIBDIR="${NETCDF_LIB}"
83        LIBS="-L${NETCDF_LIB}"
84    elif [ "x$NETCDF_INCDIR" != x -a "x$NETCDF_LIBDIR" != x ]; then
85        INCLUDEDIR="${NETCDF_INCDIR}"
86        INCLUDES="-I${NETCDF_INCDIR}"
87        LIBDIR="${NETCDF_LIBDIR}"
88        LIBS="-L${NETCDF_LIBDIR}"
89    elif test -d /usr/include/netcdf-3 ; then
90      INCLUDES='-I/usr/include/netcdf-3'      INCLUDES='-I/usr/include/netcdf-3'
91      LIBS='-L/usr/lib/netcdf-3'      LIBS='-L/usr/lib/netcdf-3'
92  elif test -d /usr/include/netcdf ; then  elif test -d /usr/include/netcdf ; then
# Line 44  elif test -d /usr/include/netcdf ; then Line 94  elif test -d /usr/include/netcdf ; then
94  elif test -d /usr/local/netcdf ; then  elif test -d /usr/local/netcdf ; then
95      INCLUDES='-I/usr/local/netcdf/include'      INCLUDES='-I/usr/local/netcdf/include'
96      LIBS='-L/usr/local/netcdf/lib'      LIBS='-L/usr/local/netcdf/lib'
97    elif test -d /usr/local/include/netcdf.inc ; then
98        INCLUDES='-I/usr/local/include'
99        LIBS='-L/usr/local/lib'
100  fi  fi
   
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