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Autosubmit: a versatile tool for managing Global Climate Coupled Models in Supercomputing Environments

Project description

Autosubmit is a tool to create, manage and monitor experiments using
Computing Clusters, HPC's and Supercomputers remotely via ssh.


HOW TO DEPLOY/SETUP AUTOSUBMIT FRAMEWORK
========================================

- Autosubmit has been tested:

with the following Operating Systems:
* Linux Debian

on the following HPC's/Clusters:
* Ithaca (IC3 machine)
* Stargate (IC3 machine)
* MareNostrum (BSC machine)
* MareNostrum3 (BSC machine)
* HECToR (EPCC machine)
* Lindgren (PDC machine)
* C2A (ECMWF machine)
* ARCHER (EPCC machine)

- Pre-requisties: These packages (bash, python2, sqlite3, git-scm > 1.8.2, subversion) must be available at local
machine. These packages (argparse, dateutil, pyparsing, numpy, pydotplus, matplotlib) must be available for
python runtime. And the machine is also able to access HPC's/Clusters via password-less ssh.

- Install Autosubmit
> pip install autosubmit
or download, unpack and "python setup.py install"

- Create a repository for experiments: Say for example "/cfu/autosubmit" then "autosubmit configure" and follow
instructions

- Create a blank database: "autosubmit install"

HOW TO USE AUTOSUBMIT
=====================
> autosubmit -h

> autosubmit expid --HPC ithaca --description "experiment is about..."

Say for example, "cxxx" is 4 character based expid generated by system automatically.
First character "c" represents the platform such as "i" for ithaca, "b" for bsc,
"h" for hector, "l" for lindgren, "e" for ecmwf and "m" for marenostrum3 etc. While rest
of three characters "xxx" are to represent unique alphanumeric identity for the experiment.

> vi /cfu/autosubmit/cxxx/conf/expdef_cxxx.conf

> vi /cfu/autosubmit/cxxx/conf/autosubmit_cxxx.conf

> vi /cfu/autosubmit/cxxx/conf/queues_cxxx.conf

> vi /cfu/autosubmit/cxxx/conf/jobs_cxxx.conf

> autosubmit create cxxx

> nohup autosubmit run cxxx >& cxxx_01.log &

Cautions:
- Before launching autosubmit check the following stuff:
> ssh ithaca # say for example similarly check other HPC's where password-less ssh is feasible
- After launching autosubmit, one must be aware of login expeiry limit and policy (if applicable for any HPC)
and renew the login access accordingly (by using token/key etc) before expiry.

HOW TO MONITOR EXPERIMENT
=========================

> autosubmit monitor -h

> autosubmit monitor cxxx
or
> autosubmit monitor cxxx -o png

Above generated plot with date & time stamp can be found at:

/cfu/autosubmit/cxxx/plot/cxxx_date_time.pdf
or
/cfu/autosubmit/cxxx/plot/cxxx_date_time.png


HOW TO RESTART EXPERIMENT
=========================

> autosubmit recovery -h

> autosubmit recovery cxxx -g # getting/fetching completed files

> autosubmit recovery cxxx -s # saving the pickle file

> nohup autosubmit run cxxx >& cxxx_02.log &


HOW TO RERUN/EXTEND EXPERIMENT
==============================

> vi /cfu/autosubmit/cxxx/conf/expdef_cxxx.conf # modify RERUN, CHUNKLIST

> autosubmit create cxxx

> nohup autosubmit cxxx >& cxxx_03.log &

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