The SubmitOnce CLI is distributed as a single executable named “submitonce” and a set of Grid Engine wrapper scripts. These wrapper scripts are intended to function similarly to their Grid Engine counterparts, listed below:
- cacct -> qacct
- cdel -> qdel
- chost -> qhost
- cstat -> qstat
- csub -> qsub
- croute -> qsub (but used to determine job routing without performing a submission)
Each line of ouput from these scripts will generally be prefixed with a corresponding cluster name. For example:
$ cstat external > [output from a cluster named "external"] internal > [output from a cluster named "internal"]
Note that each wrapper script corresponds to the first argument of the ‘submitonce’ command, so:
cstat -c external
is the same as calling:
submitonce cstat -c external
To install the SubmitOnce CLI, first unpack the tarball:
tar -xzvf submitonce-2.4.0.linux64.tar.gz
then make sure that the bin directory is on your $PATH. One way to do this would be to edit .bash_profile in your home directory and add a line like this:
Before configuring the SubmitOnce CLI, make sure that the CycleServer web interface is running and accessible from the machine you are installing on, and that you can successfully log in. For example, if the web interface is running on the same machine, you would point your web browser to http://localhost:8080.
Initialize the CLI
The configure the SubmitOnce CLI for the first time, you should run the “initialize” command:
$ submitonce initialize
This will ask you a set of questions to configure connectivity to SubmitOnce and the various clusters in your environment. This creates a file “~/.cycle/config.ini” which you may edit in the future to change any of these settings.
Your home cluster should usually be a cluster that you could submit jobs to using qsub directly. SubmitOnce assumes that all data required by a job in your home cluster is already available and will skip the data transfer step.
Your home cluster will also be given preference in all routing decisions made by SubmitOnce.
Configuring Your Home Cluster
If no clusters have been configured for SubmitOnce, the submitonce initialize command will prompt you to configure your home cluster directly from the CLI as described below in the add_cluster description.
Adding Rsync Arguments
When jobs are submitted to remotely the contents of the working directory are copied to the remote cluster. This sync process is performed automatically using the rsync transfer utility. Additional rsync directives may be used on this transfer by adding them to the submitonce config.ini file typically stored at ~/.cycle/config.ini. Below is an example of how to add additional rsync options to all transfers:
[submitonce] homecluster = home allow_local_failback = no rsync_options = --copy-links --copy-dirlinks --keep-dirlinks
Adding Clusters to SubmitOnce
To submit work to clusters via SubmitOnce, the clusters must be configured via either the GUI or the CLI. To configure a cluster from the CLI, use the add_cluster command:
$ submitonce add_cluster CLUSTER_NAME
The add_cluster command will prompt you for all the information that SubmitOnce requires to use the cluster.
Pre-Requisites for Adding a Cluster
In order to use the add_cluster command (or to set up your home cluster from the initialize command), you’ll need:
The username of the Service Account that CycleServer can use to monitor SGE on the cluster.
- In CycleCloud clusters, this is generally the cycle_server user.
A private key which can be used by CycleServer to SSH in to the remote cluster as the Service Account user (the corresponding public key should be in the user’s authorized keys).
A shared directory owned by the Service Account with identical paths on ALL clusters for SO_HOME.
- By default, SO_HOME is set to /shared/ss
- If a different SO_HOME will be used, it should be created on ALL clusters.
A count of the total core count of the cluster for static clusters or the max core count for autoscaling clusters.