install regcm4.3

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Package DescriptionInstall Required Software

Obtain CodeConfigure

Compile Model

RegCM 4.3 training session I

Installing RegCM4.3rc

G. GiulianiInternational Centre for Theorethical Physics - Trieste

Earth System Physics Section

ICTP - Earth System Physics Section

May 7, 2012

ICTP - ESP Install RegCM4.3rc

http://www.ictp.it

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Compile Model

Description

The model is distributed as Fortran90 source code.A compiler is needed to transform to executable.

I GNU GNU fortran compiler

I intel Intel R© ifort fortran compiler

I pgi Portland R© pgf90 fortran compiler

I g95 g95 fortran compiler

Check which one is present on system. 1

1Side by side install? Consider Modules packageICTP - ESP Install RegCM4.3rc

http://gcc.gnu.org

http://software.intel.com/en-us/articles/intel-composer-xe/

http://www.pgroup.com/products/pgiworkstation.htm

http://www.g95.org

http://modules.sourceforge.net

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Compile Model

Requirements

The model needs at least two libraries:

I netCDF netCDF Library

nc-config --version

I MPI MPI Library

ompi_info --version ompi release

We have an environment for the workshop:

bash

source /home/netapp-clima/users/ggiulian/workshop_env.sh


http://www.unidata.ucar.edu/software/netcdf

http://www.openmpi.org

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Compile Model

GPL license primerThe usual way to install a package on Linux is to compile thesoftware. The Free Software distributed with GPL licenseempowers the user giving

I the freedom to use the software for any reason

I the freedom to study how it works

I the freedom to modify it to fit any personal need

I the freedom to develop any product depending on it

I the limit to contribute modifications to the originalsoftware developer

I the limit to distribute any derived work with the samelicense again as source code


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Compile Model

Software Install on Linux

The normal steps to install software relies usually on GNUautotools

I Download source package as compressed archive

I Unpack it on disk

I Configure software build

I Translate source code in machine executable

I Install software either on system or user path

I Modify environment to use the software


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Compile Model

RegCM4.3rc home

The RegCM4.3rc package is distributed by the Gforge site

http://gforge.ictp.it/gf/project/regcm

I Files section on the left sidebar

I Package RegCM4.3rc click on the tar.gz file

Download packed release file, unpack on local disk:

cd Downloads

mv RegCM-4.3-rc1.tar.gz /scratch/$USER

cd /scratch/$USER

tar zxvf RegCM-4.3-rc1.tar.gz


http://gforge.ictp.it/gf/project/regcm

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Compile Model

Configure RegCM4.3rc builder

First, we need to check the workshop environment:

gfortran --version

cd RegCM-4.3-rc1

Let the configure script do some work for you.

./configure CC=gcc FC=gfortran

I Find the required software listed above in 3

I Set up the correct flag for the compiler

I Add or remove from compilation part of the code


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Compile Model

Make the executable

How to make what executables?

make install


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Compile Model

What’s happened?

ls Bin

aerosol GrADSNcPlot icbc regcmMPI sigma2p terrain

average GrADSNcPrepare chem_icbc clm2rcm regrid sst

Now we can start play around with the model.


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Compile Model

Run Environment

We setup a run environment and start the setup

cd /scratch/$USER

mkdir -p run/{input,output}

cd run

ln -sf /scratch/$USER/RegCM-4.3-rc1/Bin .

cp /scratch/$USER/RegCM-4.3-rc1/Testing/test_001.in .

gedit test_001.in


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Compile Model

Running the model

./Bin/terrain test_001.in

./Bin/sst test_001.in

./Bin/icbc test_001.in

mpirun -np 2 ./Bin/regcmMPI test_001.in

We can now go to step 2, analize the output.


install regcm4.3

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