# Job: Cache Particles on SSD

## **Description**

Cache particles on a workstation before running a job that requires the particles. This is useful when working with many particles, as it may take a long time to copy these over to the SSD. Pre-caching allows you to free up the GPU that would've normally been acquired during the caching process, allowing other jobs to use the GPU while caching completes. Read more about [SSD caching in CryoSPARC](https://guide.cryosparc.com/setup-configuration-and-management/software-system-guides/tutorial-ssd-particle-caching-in-cryosparc).

![A common "Cache Particles" workflow.](https://1916621962-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M7DGv3GkRvGGpbVPCgg%2Fuploads%2FWvOltlz4qtZi0jLyEQZZ%2FScreen%20Shot%202021-11-29%20at%204.43.30%20PM%20\(2\).png?alt=media\&token=b7d08054-2e2c-4d78-bfed-bbb6c57d3c10)

## Input

* Particles

## Output

* Particles

## Common Next Steps

* This job usually sits in between an Extract From Micrographs job and a particle processing job like 2D Classification, Non-uniform Refinement, or 3D Classification.