RMS - Run My Samples¶
RMS is a “cluster scripting language” and execution engine, making the creation of computational pipelines, and running them across a compute cluster, easy to do. The software takes a templated RMS script plus spreadsheet data files, generates commands by using the spreadsheet data to fill in the templates (i.e., for each file, each sample, each trio), and runs them on the current computer or across a cluster.
And, calling it a language overstates the case just a bit. It really consists of extra lines to organize the Bash, Perl, Python or R scripts of a pipeline, along with fill-in-the-blank “template elements” that are replaced when creating the executed commands. You write the pipeline steps in any combination of the four languages, include the RMS lines and template elements, and then run RMS with the script and the spreadsheet data as you would any program. It handles all of the details of creating, queueing and running jobs across the cluster.
For example, if you have the file ‘myfiles.txt’, containing the names of three files plus a column header on the first line,
File myfile1 myfile2 myfile3
and have the following RMS script ‘myscript.rms’, where the first line is an RMS line saying to execute the lines below as a command (and to execute that for each “File” in the spreadsheet data),
#### runTheFiles File mycommand <File>
then you can run rms as follows:
rms myscript.rms myfiles.txt
and RMS will execute the three commands “mycommand myfile1”, “mycommand myfile2” and “mycommand myfile3” across your cluster, handling all of the details of cluster queues and job submissions.
The best place to get started is with Installation and Configuration, because you likely will need to add a configuration file describing your cluster, even if the RMS software has been installed already. Getting Started - Hello World!, part 1 will let you test the software on your cluster and see another simple RMS example. Then, the rest of the documents contain more examples and go into detail about RMS scripts and running RMS.