*****
Usage
*****

Command list
============


-expid  Create a new experiment
-create  Create specified experiment workflow
-check  Check configuration for specified experiment
-run  Run specified experiment
-test  Test experiment
-monitor  Plot specified experiment
-stats  Plot statistics for specified experiment
-setstatus  Sets job status for an experiment
-recovery  Recover specified experiment
-clean  Clean specified experiment
-refresh  Refresh project directory for an experiment
-delete  Delete specified experiment
-configure  Configure database and path for autosubmit
-install  Install database for Autosubmit on the configured folder
-refresh  Refresh project directory for an experiment
-archive  Clean, compress and remove from the experiments' folder a finalized experiment
-unarchive  Restores an archived experiment


How to create an experiment
===========================
To create a new experiment, just run the command:
::

    autosubmit expid -H HPCname -d Description

*HPCname* is the name of the main HPC platform for the experiment: it will be the default platform for the tasks.
*Description* is a brief experiment description.

Options:
::

    usage: autosubmit expid [-h] [-y COPY | -dm] -H HPC -d DESCRIPTION

        -h, --help            show this help message and exit
        -y COPY, --copy COPY  makes a copy of the specified experiment
        -dm, --dummy          creates a new experiment with default values, usually for testing
        -H HPC, --HPC HPC     specifies the HPC to use for the experiment
        -d DESCRIPTION, --description DESCRIPTION
            sets a description for the experiment to store in the database.

Example:
::

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

How to create a copy of an experiment
=====================================
This option makes a copy of an existing experiment.
It registrates a new unique identifier and copies all configuration files in the new experiment folder:
::

    autosubmit expid -H HPCname -y COPY -d Description

*HPCname* is the name of the main HPC platform for the experiment: it will be the default platform for the tasks.
*COPY* is the experiment identifier to copy from.
*Description* is a brief experiment description.

Example:
::

    autosubmit expid -H ithaca -y cxxx -d "experiment is about..."

.. warning:: You can only copy experiments created with Autosubmit 3.0 or above.

How to create a dummy experiment
================================
This command creates a new experiment with default values, useful for testing:
::

    autosubmit expid -H HPCname -dm -d Description

*HPCname* is the name of the main HPC platform for the experiment: it will be the default platform for the tasks.
*Description* is a brief experiment description.

Example:
::

    autosubmit expid -H ithaca -dm "experiment is about..."

How to configure the experiment
===============================

Edit ``expdef_cxxx.conf``, ``jobs_cxxx.conf`` and ``platforms_cxxx.conf`` in the ``conf`` folder of the experiment.

*expdef_cxxx.conf* contains:
    - Start dates, members and chunks (number and length).
    - Experiment project source: origin (version control system or path)
    - Project configuration file path.

*jobs_cxxx.conf* contains the workflow to be run:
    - Scripts to execute.
    - Dependencies between tasks.
    - Task requirements (processors, wallclock time...).
    - Platform to use.

*platforms_cxxx.conf* contains:
    - HPC, fat-nodes and supporting computers configuration.

.. note:: *platforms_cxxx.conf* is usually provided by technicians, users will only have to change login and accounting options for HPCs.

You may want to configure Autosubmit parameters for the experiment. Just edit ``autosubmit_cxxx.conf``.

*autosubmit_cxxx.conf* contains:
    - Maximum number of jobs to be running at the same time at the HPC.
    - Time (seconds) between connections to the HPC queue scheduler to poll already submitted jobs status.
    - Number of retrials if a job fails.

Then, Autosubmit *create* command uses the ``expdef_cxxx.conf`` and generates the experiment:
After editing the files you can proceed to the experiment workflow creation.
Experiment workflow, which contains all the jobs and its dependencies, will be saved as a *pkl* file:
::

    autosubmit create EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit create [-h] [-np] expid

      expid          experiment identifier

      -h, --help     show this help message and exit
      -np, --noplot  omit plot

Example:
::

    autosubmit create cxxx

More info on pickle can be found at http://docs.python.org/library/pickle.html

How to check the experiment configuration
=========================================
To check the configuration of the experiment, use the command:
::

    autosubmit check EXPID

*EXPID* is the experiment identifier.

It checks experiment configuration and warns about any detected error or inconsistency.

Options:
::

    usage: autosubmit check [-h] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit

Example:
::

    autosubmit check cxxx


How to run the experiment
=========================
Launch Autosubmit with the command:
::

    autosubmit run EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit run [-h] expid

      expid       experiment identifier

      -h, --help  show this help message and exit

Example:
::

    autosubmit run cxxx

.. hint:: It is recommended to launch it in background and with ``nohup`` (continue running although the user who launched the process logs out).

Example:
::

    nohup autosubmit run cxxx &

.. important:: Before launching Autosubmit check password-less ssh is feasible (*HPCName* is the hostname):

    ``ssh HPCName``

More info on password-less ssh can be found at: http://www.linuxproblem.org/art_9.html

.. caution:: After launching Autosubmit, one must be aware of login expiry limit and policy (if applicable for any HPC) and renew the login access accordingly (by using token/key etc) before expiry.

How to test the experiment
==========================
This method is to conduct a test for a given experiment. It creates a new experiment for a given experiment with a
given number of chunks with a random start date and a random member to be run on a random HPC.

To test the experiment, use the command:
::

    autosubmit test CHUNKS EXPID

*EXPID* is the experiment identifier.
*CHUNKS* is the number of chunks to run in the test.



Options:
::

    usage: autosubmit test [-h] -c CHUNKS [-m MEMBER] [-s STARDATE] [-H HPC] [-b BRANCH] expid

        expid                 experiment identifier

         -h, --help            show this help message and exit
         -c CHUNKS, --chunks CHUNKS
                               chunks to run
         -m MEMBER, --member MEMBER
                               member to run
         -s STARDATE, --stardate STARDATE
                               stardate to run
         -H HPC, --HPC HPC     HPC to run experiment on it
         -b BRANCH, --branch BRANCH
                               branch from git to run (or revision from subversion)

Example:
::

    autosubmit test -c 1 -s 19801101 -m fc0 -H ithaca -b develop cxxx


How to monitor the experiment
=============================
To monitor the status of the experiment, use the command:
::

    autosubmit monitor EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit monitor [-h] [-o {pdf,png,ps,svg}] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit
      -o {pdf,png,ps,svg}, --output {pdf,png,ps,svg}
                            type of output for generated plot

Example:
::

    autosubmit monitor cxxx

The location where user can find the generated plots with date and timestamp can be found below:

::

    <experiments_directory>/cxxx/plot/cxxx_<date>_<time>.pdf

.. hint::
    Very large plots may be a problem for some pdf and image viewers.
    If you are having trouble with your usual monitoring tool, try using svg output and opening it with Google Chrome with the SVG Navigator extension installed.

How to monitor job statistics
=============================
The following command could be adopted to generate the plots for visualizing the jobs statistics of the experiment at any instance:
::

    autosubmit stats EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit stats [-h] [-o {pdf,png,ps,svg}] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit
      -o {pdf,png,ps,svg}, --output {pdf,png,ps,svg}
                            type of output for generated plot

Example:
::

    autosubmit stats cxxx

The location where user can find the generated plots with date and timestamp can be found below:

::

    <experiments_directory>/cxxx/plot/cxxx_statistics_<date>_<time>.pdf


How to stop the experiment
==========================

You can stop Autosubmit by sending a signal to the process.
To get the process identifier (PID) you can use the ps command on a shell interpreter/terminal.
::

    ps -ef | grep autosubmit
    dmanubens  22835     1  1 May04 ?        00:45:35 autosubmit run cxxy
    dmanubens  25783     1  1 May04 ?        00:42:25 autosubmit run cxxx

To send a signal to a process you can use kill also on a terminal.

To stop immediately experiment cxxx:
::

    kill -9 22835

.. important:: In case you want to restart the experiment, you must follow the
    :ref:`restexp` procedure, explained below, in order to properly resynchronize all completed jobs.

.. _restexp:

How to restart the experiment
=============================

This procedure allows you to restart an experiment.

You must execute:
::

    autosubmit recovery EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit recovery [-h] [-all] [-s] expid

        expid       experiment identifier

        -h, --help  show this help message and exit
        -all        Get all completed files to synchronize pkl
        -s, --save  Save changes to disk

Example:
::

    autosubmit recovery cxxx -s

.. hint:: When we are satisfied with the results we can use the parameter -s, which will save the change to the pkl file and rename the update file.

The -all flag is used to synchronize all jobs of our experiment locally with the information available on the remote platform
(i.e.: download the COMPLETED files we may not have). In case new files are found, the ``pkl`` will be updated.

Example:
::

    autosubmit recovery cxxx -all -s


How to rerun a part of the experiment
=====================================

This procedure allows you to create automatically a new pickle with a list of jobs of the experiment to rerun.

Using the ``expdef_<expid>.conf`` the ``create`` command will generate the rerun if the variable RERUN is set to TRUE and a CHUNKLIST is provided.

::

    autosubmit create cxxx

It will read the list of chunks specified in the CHUNKLIST and will generate a new plot.

.. note:: The results are saved in the new pkl ``rerun_job_list.pkl``.

Example:
::

    vi <experiments_directory>/cxxx/conf/expdef_cxxx.conf

.. code-block:: ini

    [...]

    [rerun]
    # Is a rerun or not? [Default: Do set FALSE]. BOOLEAN = TRUE, FALSE
    RERUN = TRUE
    # If RERUN = TRUE then supply the list of chunks to rerun
    # LIST = "[ 19601101 [ fc0 [1 2 3 4] fc1 [1] ] 19651101 [ fc0 [16-30] ] ]"
    CHUNKLIST = [ 19601101 [ fc1 [1] ]

    [...]

Then you are able to start again Autosubmit for the rerun of cxxx 19601101, chunk 1, member 1:

::

    nohup autosubmit run cxxx &


How to clean the experiment
===========================

This procedure allows you to save space after finalising an experiment.  
You must execute:
::

    autosubmit clean EXPID


Options:
::

    usage: autosubmit clean [-h] [-pr] [-p] [-s] expid

      expid           experiment identifier

      -h, --help      show this help message and exit
      -pr, --project  clean project
      -p, --plot      clean plot, only 2 last will remain
      -s, --stats     clean stats, only last will remain

* The -p and -s flag are used to clean our experiment ``plot`` folder to save disk space. Only the two latest plots will be kept. Older plots will be removed.

Example:
::

    autosubmit clean cxxx -p

* The -pr flag is used to clean our experiment ``proj`` locally in order to save space (it could be particullary big).

.. caution:: Bear in mind that if you have not synchronized your experiment project folder with the information available on the remote repository (i.e.: commit and push any changes we may have), or in case new files are found, the clean procedure will be failing although you specify the -pr option.

Example:
::

    autosubmit clean cxxx -pr

A bare copy (which occupies less space on disk) will be automatically made.

.. hint:: That bare clone can be always reconverted in a working clone if we want to run again the experiment by using ``git clone bare_clone original_clone``.

.. note:: In addition, every time you run this command with -pr option, it will check the commit unique identifier for local working tree existing on the ``proj`` directory.
    In case that commit identifier exists, clean will register it to the ``expdef_cxxx.conf`` file.


How to refresh the experiment project
=====================================

To refresh the project directory of the experiment, use the command:
::

    autosubmit refresh EXPID

*EXPID* is the experiment identifier.

It checks experiment configuration and copy code from original repository to project directory.

.. warning:: DO NOT USE THIS COMMAND IF YOU ARE NOT SURE !
    Project directory will be overwritten and you may loose local changes.


Options:
::

    usage: autosubmit refresh [-h] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit
      -mc, --model_conf     overwrite model conf file
      -jc, --jobs_conf      overwrite jobs conf file

Example:
::

    autosubmit refresh cxxx



How to delete the experiment
============================

To delete the experiment, use the command:
::

    autosubmit delete EXPID

*EXPID* is the experiment identifier.

.. warning:: DO NOT USE THIS COMMAND IF YOU ARE NOT SURE !
    It deletes the experiment from database and experiment’s folder.

Options:
::

    usage: autosubmit delete [-h] [-f] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit
      -f, --force  deletes experiment without confirmation


Example:
::

    autosubmit delete cxxx

.. warning:: Be careful ! force option does not ask for your confirmation.

How to add a new job
====================

To add a new job, open the <experiments_directory>/cxxx/conf/jobs_cxxx.conf file where cxxx is the experiment
identifier and add this text:

.. code-block:: ini

    [new_job]
    FILE = <new_job_template>

This will create a new job named "new_job" that will be executed once at the default platform. This job will user the
template located at <new_job_template> (path is relative to project folder).

This is the minimun job definition and usually is not enough. You usually will need to add some others parameters:

* PLATFORM: allows you to execute the job in a platform of yout choice. It must be defined in the experiment's
  platforms.conf file or to have the value 'LOCAL' that always refer to the machine running Autosubmit

* RUNNING: defines if jobs runs only once or once per stardate, member or chunk. Options are: once, date,
  member, chunk

* DEPENDENCIES: defines dependencies from job as a list of parents jobs separed by spaces. For example, if
  'new_job' has to wait for "old_job" to finish, you must add the line "DEPENDENCIES = old_job". For dependencies to
  jobs running in previous chunks, members or startdates, use -(DISTANCE). For example, for a job "SIM" waiting for
  the previous "SIM" job to finish, you have to add "DEPENDENCIES = SIM-1"

For jobs running in HPC platforms, usually you have to provide information about processors, wallclock times and more
. To do this use:

* WALLCLOCK: wallclock time to be submitted to the HPC queue in format HH:MM

* PROCESSORS: processors number to be submitted to the HPC. If not specified, defaults to 1.

* THREADS:  threads number to be submitted to the HPC. If not specified, defaults to 1.

* TASKS: tasks number to be submitted to the HPC. If not specified, defaults to 1.

* QUEUE: queue to add the job to. If not specificied, uses PLATFORM default.

There are also another, less used features that you can use:

* FREQUENCY: specifies that a job has only to be run after X dates, members or chunk. A job will always be created for
  the last one. If not specified, defaults to 1

* RERUN_ONLY: determines if a job is only to be executed in reruns. If not specified, defaults to false.

* RERUN_DEPENDENCIES: defines the jobs to be rerun if this job is going to be rerunned. Syntax is identical to
  the used in DEPENDENCIES

Example:

.. code-block:: ini

    [SIM]
    FILE = templates/ecearth3/ecearth3.sim
    DEPENDENCIES = INI SIM-1 CLEAN-2
    RUNNING = chunk
    WALLCLOCK = 04:00
    PROCESSORS = 1616
    THREADS = 1
    TASKS = 1

How to add a new platform
=========================

To add a new platform, open the <experiments_directory>/cxxx/conf/platforms_cxxx.conf file where cxxx is the experiment
identifier and add this text:

.. code-block:: ini

    [new_platform]
    TYPE = <platform_type>
    HOST = <host_name>
    PROJECT = <project>
    USER = <user>
    SCRATCH = <scratch_dir>


This will create a platform named "new_platform". The options specified are all mandatory:

* TYPE: queue type for the platform. Options supported are PBS, SGE, PS, LSF, ecaccess and SLURM

* HOST: hostname of the platform

* PROJECT: project for the machine scheduler.

* USER: user for the machine scheduler

* SCRATCH_DIR: path to the scratch directory of the machine

.. warning:: With some platform types, Autosubmit may also need the version, forcing you to add the parameter
    VERSION. These platforms are PBS (options: 10, 11, 12) and ecaccess (options: pbs, loadleveler)

Some platforms may require to run serial jobs in a different queue or platform. To avoid changing the job
configuration, you can specify what platform or queue to use to run serial jobs assigned to this platform:

* SERIAL_PLATFORM: if specified, Autosubmit will run jobs with only one processor in the specified platform.

* SERIAL_QUEUE: if specified, Autosubmit will run jobs with only one processor in the specified queue. Autosubmit
  will ignore this configuration if SERIAL_PLATFORM is provided

There are some other paramaters that you must need to specify:

* BUDGET: budget account for the machine scheduler. If omited, takes the value defined in PROJECT

* ADD_PROJECT_TO_HOST = option to add project name to host. This is required for some HPCs

* QUEUE: if given, Autosubmit will add jobs to the given queue instead of platformn's default queue

* TEST_SUITE: if true, autosubmit test command can use this queue as a main queue. Defaults to false

* MAX_WAITING_JOBS: maximum number of jobs to be waiting in this platform.

* TOTAL_JOBS: maximum number of jobs to be running at the same time in this platform.

Example:

.. code-block:: ini

    [platform]
    TYPE = SGE
    HOST = hostname
    PROJECT = my_project
    ADD_PROJECT_TO_HOST = true
    USER = my_user
    SCRATCH_DIR = /scratch
    TEST_SUITE = True


How to refresh an experiment
============================
To refresh the project folder after creating the experiment use the command:
::

    autosubmit refresh EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit refresh [-h] [-mc] expid

    refresh project directory for an experiment

    positional arguments:
      expid              experiment identifier

    optional arguments:
      -h, --help         show this help message and exit
      -mc, --model_conf  overwrite model conf file

Example:
::

    autosubmit refresh cxxx


How to archive an experiment
============================

To archive the experiment, use the command:
::

    autosubmit archive EXPID

*EXPID* is the experiment identifier.

.. warning:: this command calls implicitly the clean command. Check clean command documentation.

.. warning:: experiment will be unusable after archiving. If you want to use it, you will need to call first the
    unarchive command


Options:
::

    usage: autosubmit archive [-h] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit


Example:
::

    autosubmit archive cxxx

.. hint:: Archived experiment will be stored as a tar.gz file on a folder named after the year of the last
    COMPLETED file date. If not COMPLETED file is present, it will be stored in the folder matching the
    date at the time the archive command was run.

How to unarchive an experiment
==============================

To unarchive an experiment, use the command:
::

    autosubmit unarchive EXPID

*EXPID* is the experiment identifier.

Options:
::

    usage: autosubmit unarchive [-h] expid

      expid                 experiment identifier

      -h, --help            show this help message and exit


Example:
::

    autosubmit unarchive cxxx


