# Cluster Size

Cluster size can be set by:

1. Selecting a predefined size from the dropdown list.
2. Entering a custom amount of executors (up to a maximum of 10,000).

## Predefined Cluster Sizes

The following cluster sizes are available by default:

<table><thead><tr><th width="277.5">Cluster Size </th><th>Number of executors </th></tr></thead><tbody><tr><td>XS</td><td>1</td></tr><tr><td>S</td><td>2</td></tr><tr><td>M</td><td>4</td></tr><tr><td>L</td><td>8</td></tr><tr><td>XL</td><td>16</td></tr><tr><td>XXL</td><td>32</td></tr><tr><td>XXXL</td><td>64</td></tr></tbody></table>

**NOTE:** The number of executors doubles as you increase to the next higher cluster size. e.g. XS = 1 executor, S = 2 executors, and so on.