Allocations and compute scheduling: Difference between revisions

With the 2025 [[infrastructure renewal]], it will become possible to schedule a fraction of a GPU using [[multi-instance GPU]] technology.  Different jobs, potentially belonging to different users, can run on the same GPU at the same time.  Following [https://docs.nvidia.com/datacenter/tesla/mig-user-guide/#terminology NVidia's terminology], a fraction of a GPU allocated to a single job is called a "GPU instance", also sometimes called a "MIG instance".   

If you have access to more than one [[Running_jobs#Accounts_and_projects|Slurm account]], the "Select user’s account" pull-down menu of the "SLURM account" panel lets you select which project account will be displayed in the figure window. If the “Select user’s account” is left empty the figure will display all of your usage across accounts on the specified cluster during the selected time period. The "Select user’s account" pull-down menu is populated by a list of all the accounts that have job records on the selected cluster during the selected time interval. Other accounts that you have access to but do not have usage on the selected cluster during the selected time interval will also appear in the pull-down menu but will be grayed out and not selectable as they would not generate a figure. When you select a single project account the figure is updated and the summary panel titled "Allocation Information" is populated with details of the project account. The height of each bar in the histogram figure corresponds to the metric for that day (e.g. CPU-equivalent days) across all users in the account on the system. The top eight users are displayed in unique colors stacked on top of the summed metric for all other users in gray. You can navigate the figure using [https://plotly.com/graphing-libraries/ Plotly] tools (zoom, pan, etc) whose icons appear at the top-right when you hover your mouse over the figure window. You can also use the legend on the right-hand side to manipulate the figure. Single-clicking an item will toggle the item's presence in the figure, and double-clicking the item will toggle off or on all the other items in the figure.  

When a single account has been selected for display, the <i>Allocation target</i> is shown as a horizontal red line. It can be turned off or on with the “Display allocation target by default” item in the “Parameters” panel, or by clicking on the words "Allocation target" in the legend to the right of the figure.