v0.9.0a1

This is the release notes of v0.9.0a1. See here for the complete list of solved issues and merged PRs.

New Features

• Tensor
  • Implements mt.bincount (#2548)
• DataFrame
  • Support Series.median() (#2566, thanks @perfumescent!)
• Learn
  • Add mars.learn.metrics.multilabel_confusion_matrix and derivative metrics (#2554)
• Services
  • Add basic profiling support for supervisor (#2586)

Enhancements

• Add app_queue in new_cluster (#2550, thanks @xxxxsk!)
• Implement web API of get_infos (#2558)
• Reduce time cost of cpu_percent() calls (#2567)
• Reduce estimation time cost (#2577)
• [ray] refine mars on ray usability (#2580)
• [ray] Refine raydataset integration (#2579)
• Optimize tileable graph construction (#2583)
• Stop calling user funcs when dtypes is specified (#2587)
• Supports adding Mars extensions via setup entrypoints (#2589)
• Skip details of shuffled chunks in meta (#2600)
• Reduce the time cost of fetching tileable data (#2594)
• Use batched request to apply for slots (#2601)
• Reduce RPC cost of oscar by removing unnecessary tasks (#2597)

Bug fixes

• Fix index series.apply when result index unchanged (#2557)
• Stop using asdict to handle dataclasses (#2561)
• Fix tests under cudf 21.10 (#2608)
• Fix DataFrame getitem when exists duplicate columns (#2581)
• Upgrade required version of vineyard. (#2588)
• Fix progress always is 0 or 100% (#2591)
• Make Proxima work with latest Mars (#2599, thanks @yuyiming!)
• Fix None dtype for some unary tensor functions (#2603)
• Fix duplicate decref of subtask input chunk (#2611, thanks @Catch-Bull!)

Documentation

• Add a document about how to implement a Mars operand (#2562)