xgboost

Author SHA1 Message Date

Author	SHA1	Message	Date
Jiaming Yuan	bc267dd729	Use ptr from `mmap` for `GHistIndexMatrix` and `ColumnMatrix`. (#9315 ) * Use ptr from mmap for `GHistIndexMatrix` and `ColumnMatrix`. - Define a resource for holding various types of memory pointers. - Define ref vector for holding resources. - Swap the underlying resources for GHist and ColumnM. - Add documentation for current status. - s390x support is removed. It should work if you can compile XGBoost, all the old workaround code does is to get GCC to compile.	2023-06-27 19:05:46 +08:00
Jiaming Yuan	c0afdb6786	Fix CPU bin compression with categorical data. (#8809 ) * Fix CPU bin compression with categorical data. * The bug causes the maximum category to be lesser than 256 or the maximum number of bins when the input data is dense.	2023-02-16 04:20:34 +08:00
Jiaming Yuan	8dd96013f1	Split up column matrix initialization. (#8060 ) * Split up column matrix initialization. This PR splits the column matrix initialization into 2 steps, the first one initializes the storage while the second one does the transpose. By doing so, we can reuse the code for Quantile DMatrix.	2022-07-14 10:34:47 +08:00

Jiaming Yuan

bc267dd729

Use ptr from mmap for GHistIndexMatrix and ColumnMatrix. (#9315 )

* Use ptr from mmap for `GHistIndexMatrix` and `ColumnMatrix`.

- Define a resource for holding various types of memory pointers.
- Define ref vector for holding resources.
- Swap the underlying resources for GHist and ColumnM.
- Add documentation for current status.
- s390x support is removed. It should work if you can compile XGBoost, all the old workaround code does is to get GCC to compile.

2023-06-27 19:05:46 +08:00

Jiaming Yuan

c0afdb6786

Fix CPU bin compression with categorical data. (#8809 )

* Fix CPU bin compression with categorical data.

* The bug causes the maximum category to be lesser than 256 or the maximum number of bins when
the input data is dense.

2023-02-16 04:20:34 +08:00

Jiaming Yuan

8dd96013f1

Split up column matrix initialization. (#8060 )

* Split up column matrix initialization.

This PR splits the column matrix initialization into 2 steps, the first one initializes
the storage while the second one does the transpose. By doing so, we can reuse the code
for Quantile DMatrix.

2022-07-14 10:34:47 +08:00

3 Commits