You can see the Cloud TPU quota for your GCP project on the Google Cloud Platform Console.
Cloud TPU allocates a default quota to all Google Cloud Platform projects. There are separate quotas for preemptible TPUs and normal (non-preemptible) TPUs:
- Normal (non-preemptible) TPUs: Default quota is at least 2 TPUs (16 cores).
- Preemptible TPUs: Default quota is at least 6 TPUs (48 cores).
The Cloud TPU architecture is 2 cores per chip and 4 chips per device for a total of 8 cores per TPU. Therefore, a quota of 8 enables the use of 1 Cloud TPU. A quota of 16 enables use of up to 2 Cloud TPUs, and so forth.
Requesting additional quota
If you need additional Cloud TPU quota, go to the TPU quota page on the GCP Console and do the following:
- From the Service pulldown, select the Cloud TPU API service. You must update the TPU cores per project per region.
- Click Edit Quotas to start the quota increase process.
You will receive a notification when the additional quota is approved. Note: Due to high demand, it's possible that some requests for additional quota will not be approved.