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This is a brief overview of the main concepts and terms needed to follow CosmosOverview/Workflow
Everything that Experimenters can interact with is referred to as a Resource
Types include:
* Compute resources: servers, PCs, etc.
* Software Defined Radios
* Other RF Devices: basestations, full duplex radios
* RF Frontends
* Network Switches
* Optical switches and roadms
* Resources are grouped under Domains. Each domain won't interfere with any others, and they are reserved completely separately.
* The hardware in a domain may span several sites, or may be contained within a single site.
* Each Domain has a dedicated control machine called a console.
* The console can be logged into with SSH from outside.
* Access is only available during a reservation.
* It acts as a jump host to access resources within its domain.
* Physical locations where hardware is installed.
* A site consists of one or more nodes.
* Nodes refer to a set of radio, compute, and other resources meant to be used as a unit.
* The resources in a node will share infrastructure such as power, networking, or RF frontends.
* Therefore, the use of resources within a node must be coordinated to avoid interference.
* It is possible to use a subset of the resources within a node
* Reservations allow users to obtain exclusive use of resources for a define time period.
* Currently, to ensure repeatable results, resources are reserved at the domain level.
* TODO: Once the sharing policies are in place the management framework will be modified to allow for reservation of a combination of nodes + frequency allocation, but for now the time slot guarantees exclusive use of all resources in a domain.
* Compute resources have their state defined by what disk image is loaded on them
* Predefined base images are available, and described at UserGuide/DiskImages
* Tutorials will either use a base image, or a specific customized image.
* The normal workflow is to load a base image, make the changes you need, and then save your own customized image to preserve your work.
* Details on how to work with images are at OMF Quick Start
* Tutorials are used as both instructional tools, as well as starting points for developing your own experiments.
* For example, following the basic usage tutorial, you will be able to send and receive RF data with an SDR.