Quota Policy

You can see the Cloud TPU quota for your GCP project on the Google Cloud Platform Console.

Default quota

A Cloud TPU is comprised of 8 cores: 2 cores per chip and 4 chips per device. A number following a version number specifies the number of cores, for example, v2-8. A quota of 8 enables the use of 8 cores. A quota of 16 enables use of up to 16 cores, and so forth.

Cloud TPU allocates a default quota to all Google Cloud Platform projects. The default quota applies to both v2-8 and v3-8 (beta) Cloud TPU versions.

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).

Requesting additional quota

If you need additional Cloud TPU quota, go to the TPU quota page on the GCP Console and do the following:

  1. From the Service pulldown, select the Cloud TPU API service. You must update the TPU cores per project per region.
  2. 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.

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