# Computing API

Most of the time, the federatedml's user does not need to know how to initialize a computing session because
fate flow has already cover this for you. Unless, the user is writing unittest, and CTable related functions are involved.
Initialize a computing session:

```python
from fate_arch.session import computing_session
# initialize
computing_session.init(session_id="a great session")
# create a table from iterable data
table = computing_session.parallelize(range(100), include_key=False, partition=2)
```

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## computing session

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## computing table

After creating a table using computing session, many distributed computing api available

::: fate_arch.abc._computing.CTableABC
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