编译和安装

操作步骤

1. 使用PuTTY工具，以root用户登录服务器。
2. 执行以下命令进入MITgcm安装包所在目录。

   cd /path/to/MITGCM

3. 执行以下命令解压安装包。

   tar -xvf MITgcm_c67o.tar.gz
   cd MITgcm

4. 执行以下命令配置相关文件。
   1. 进入“build_options”目录。

      cd tools/build_options

   2. 创建并编辑“Linux_arm64_gfortran”文件。

      vi linux_arm64_gfortran

   3. 按“i”进入编辑模式，添加如下内容。

      #!/bin/bash
      MPI='true'
      CC=mpicc
      FC=mpif77
      F90C=mpif90
      DEFINES='-DWORDLENGTH=4 -DNML_TERMINATOR -DALLOW_USE_MPI -DALWAYS_USE_MPI'
      EXTENDED_SRC_FLAG='-ffixed-line-length-132'
      F90FIXEDFORMAT='-ffixed-form'
      GET_FC_VERSION="--version"
      OMPFLAG='-fopenmp'
      NOOPTFLAGS='-O0 -g'
      NOOPTFILES=''
      CFLAGS='-O3 '
      FFLAGS="$FFLAGS -fconvert=big-endian -fimplicit-none"
      CFLAGS="$CFLAGS -fPIC"
      FFLAGS="$FFLAGS -fPIC"
      #- with FC 19, need to use this without -fPIC (which cancels -mcmodel option):
      # CFLAGS="$CFLAGS -mcmodel=medium"
      # FFLAGS="$FFLAGS -mcmodel=medium"
      #- might want to use '-fdefault-real-8' for fizhi pkg:
      #FFLAGS="$FFLAGS -fdefault-real-8 -fdefault-double-8"
      if test "x$IEEE" = x ; then #- with optimisation:
      #- full optimisation
      FOPTIM='-O3 -funroll-loops'
      NOOPTFILES="$NOOPTFILES ini_masks_etc.F"
      #- can use -O2 (safe optimisation) to avoid Pb with some gcc version of -O3:
      #FOPTIM='-O2 -funroll-loops'
      else
      # these may also be useful, but require specific gfortran versions:
      # -Wnonstd-intrinsics for gfortran <= 4.3
      # -Wintrinsics-std for gfortran >= 4.4
      # -Wno-tabs for gfortran >= 4.3
      # -Wno-unused-dummy-argument for gfortran >= 4.6
      #FFLAGS="$FFLAGS -Waliasing -Wampersand -Wsurprising -Wline-truncation"
      #- or simply:
      FFLAGS="$FFLAGS -Wall"
      #- to get plenty of warnings: -Wall -Wextra (older form: -Wall -W) or:
      #FFLAGS="$FFLAGS -Wconversion -Wimplicit-interface -Wunused-labels"
      if test "x$DEVEL" = x ; then #- no optimisation + IEEE :
      FOPTIM='-O0'
      else #- development/check options:
      FOPTIM='-O0 -g -fbounds-check'
      FOPTIM="$FOPTIM -ffpe-trap=invalid,zero,overflow -finit-real=inf"
      fi
      fi
      F90FLAGS=$FFLAGS
      F90OPTIM=$FOPTIM
      # --------------------------
      # NETCDF DIRECTORIES
      # --------------------------
      HDF5_HOME=/path/to/HDF5
      NETCDF_HOME=/path/to/NETCDF
      INCLUDEDIRS=''
      INCLUDES="-I$NETCDF_HOME/include -I$HDF5_HOME/include"
      LIBS="-L$NETCDF_HOME/lib -lnetcdff -lnetcdf -L$HDF5_HOME/lib -lhdf5_hl -lhdf5"
      # -----------------------
      # INCLUDE MPI DIRECTORIES
      # -----------------------
      MPI_HOME=/path/to/OPENMPI-4.0.1
      MPI_INC_DIR=$MPI_HOME/include
      INCLUDES="$INCLUDES -I$MPI_HOME/include"
      INCLUDEDIRS="$INCLUDEDIRS $MPI_HOME/include"
      MPIINCLUDEDIR="$MPI_INC_DIR"

   4. 按“Esc”键，输入:wq!，按“Enter”保存并退出编辑。
5. 以“exp4”算例为例，进行编译安装。
   1. 执行以下命令进入相应目录。

      cd /path/to/MITGCM/MITgcm/verification/exp4/code

   2. 执行以下命令将“SIZE.h_mpi”重命名为“SIZE.h”，覆盖原始的“SIZE.h”文件。

      mv SIZE.h_mpi SIZE.h

   3. 执行以下命令进入相应目录。

      cd /path/to/MITGCM/MITgcm/verification/exp4/build

   4. 执行以下命令生成“makefile”文件。

      ../../../tools/genmake2 -mods=../code -mpi -of=../../../tools/build_options/linux_arm64_gfortran

   5. 执行以下命令编译安装，若有“mitgcmuv”文件生成表示编译成功。

      make depend
      make