cannot setup chronos from source

[onurbarut]

When I installed bigdl-chronos using this guide and want to use autoformer forcaster, TSDataset complains about not having 'time_enc' as one of arguments. when I check bigdl-version, it is 2.0.0. Then, I wanted to install chronos from source, but while installing I got error bigdl-orca==2.1.0.dev0 not found to be installed (see below).

...
creating 'dist/bigdl_chronos-2.1.0.dev0-py3.7.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing bigdl_chronos-2.1.0.dev0-py3.7.egg
removing '/home/onur/intel/oneapi/intelpython/python3.9/envs/autots2/lib/python3.7/site-packages/bigdl_chronos-2.1.0.dev0-py3.7.egg' (and everything under it)
creating /home/onur/intel/oneapi/intelpython/python3.9/envs/autots2/lib/python3.7/site-packages/bigdl_chronos-2.1.0.dev0-py3.7.egg
Extracting bigdl_chronos-2.1.0.dev0-py3.7.egg to /home/onur/intel/oneapi/intelpython/python3.9/envs/autots2/lib/python3.7/site-packages
bigdl-chronos 2.1.0.dev0 is already the active version in easy-install.pth

Installed /home/onur/intel/oneapi/intelpython/python3.9/envs/autots2/lib/python3.7/site-packages/bigdl_chronos-2.1.0.dev0-py3.7.egg
Processing dependencies for bigdl-chronos==2.1.0.dev0
Searching for bigdl-orca==2.1.0.dev0
Reading https://pypi.org/simple/bigdl-orca/
No local packages or working download links found for bigdl-orca==2.1.0.dev0
error: Could not find suitable distribution for Requirement.parse('bigdl-orca==2.1.0.dev0')

Thanks for help!

[TheaperDeng]

Hi, thanks for your feedback.

stable version bigdl-chronos(2.0.0) does not have autoformer model or related function in TSDataset, but the nightly-built version does.

Please install nightly-build version bigdl-chronos through

pip install --pre --upgrade bigdl-chronos[all]

Detailed information can be found here: https://bigdl.readthedocs.io/en/latest/doc/Chronos/Overview/chronos.html#install

Since our nightly-build version will be released every day, you don't need to build from src.

[TheaperDeng]

Since autoformer is a very new model to chronos, some updates/bug fixes might be done in next few weeks.

A good example to start with autoformer is: https://github.com/intel-analytics/BigDL/tree/main/python/chronos/use-case/electricity