masterType property
Specifies the type of virtual machine to use for your training job's master worker.
You must specify this field when scaleTier is set to CUSTOM. You can
use certain Compute Engine machine types directly in this field. See the
[list of compatible Compute Engine machine
types](/ai-platform/training/docs/machine-types#compute-engine-machine-types).
Alternatively, you can use the certain legacy machine types in this field.
See the [list of legacy machine
types](/ai-platform/training/docs/machine-types#legacy-machine-types).
Finally, if you want to use a TPU for training, specify cloud_tpu in
this field. Learn more about the [special configuration options for
training with
TPUs](/ai-platform/training/docs/using-tpus#configuring_a_custom_tpu_machine).
Optional.
Implementation
core.String? masterType;