Wenjun Si

> what is `tensor fusion`? Can u give an example? Chain of chunk-wise tensor operands

Cannot reproduce with latest master branch and Jupyter Lab. Code cells: ```python import mars import mars.remote as mr ``` ```python start_sess = mars.new_session(web=True) mars.new_session(start_sess.get_web_endpoint()).as_default() ``` ```python # cancel and rerun...

I've implemented a half-done branch https://github.com/wjsi/mars/tree/feature/shuffle_svc for shuffle. The reason why it is not merged is that currently storage service lacks the capability of remote readers and writers. Now working...

> > https://github.com/wjsi/mars/tree/feature/shuffle_svc > > Is there a design doc for this? Not yet. I'll write it soon.

> Hello @wjsi, I would like to contribute to this issue but I am not sure how to do it. Could you please provide me some guidance regarding this function...

Before this feature is implemented in Mars, Ray should first implement this API in its public releases.

@chaokunyang better to trace related issues or prs in Ray here.

Both original code and `read_raydataset` variant not reproduced with current master branch.

Now after #107, the tiling time has been reduced to 1.5min.

Please open a new issue to illustrate your changes. What's more, any benchmarks for that?