Rong Ou
a65ad0bd9c
Support column split in histogram builder ( #8811 )
2023-02-17 22:37:01 +08:00
Jiaming Yuan
3760cede0f
Consistent use of context to specify number of threads. ( #8733 )
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- Use context in all tests.
- Use context in R.
- Use context in C API DMatrix initialization. (0 threads is used as dft).
2023-01-30 15:25:31 +08:00
Rory Mitchell
8f77677193
Use quantised gradients in gpu_hist histograms ( #8246 )
2022-09-26 17:35:35 +02:00
Dmitry Razdoburdin
eb7bbee2c9
Optional by-column histogram build. ( #8233 )
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Co-authored-by: dmitry.razdoburdin <drazdobu@jfldaal005.jf.intel.com>
2022-09-22 05:16:13 +08:00
Jiaming Yuan
4a4e5c7c18
Prepare gradient index for Quantile DMatrix. ( #8103 )
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* Prepare gradient index for Quantile DMatrix.
- Implement push batch with adapter batch.
- Implement `GetFvalue` for prediction.
2022-07-22 17:26:33 +08:00
Jiaming Yuan
142a208a90
Fix compiler warnings. ( #8022 )
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- Remove/fix unused parameters
- Remove deprecated code in rabit.
- Update dmlc-core.
2022-06-22 21:29:10 +08:00
Jiaming Yuan
18a38f7ca0
Refactor for GHistIndex. ( #7923 )
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* Pass sparse page as adapter, which prepares for quantile dmatrix.
* Remove old external memory code like `rbegin` and extra `Init` function.
* Simplify type dispatch.
2022-05-23 23:04:53 +08:00
Jiaming Yuan
1b6538b4e5
[breaking] Drop single precision histogram ( #7892 )
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Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
2022-05-13 19:54:55 +08:00
Jiaming Yuan
4d81c741e9
External memory support for hist ( #7531 )
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* Generate column matrix from gHistIndex.
* Avoid synchronization with the sparse page once the cache is written.
* Cleanups: Remove member variables/functions, change the update routine to look like approx and gpu_hist.
* Remove pruner.
2022-03-22 00:13:20 +08:00
Jiaming Yuan
6762c45494
Small cleanup to gradient index and hist. ( #7668 )
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* Code comments.
* Const accessor to index.
* Remove some weird variables in the `Index` class.
* Simplify the `MemStackAllocator`.
2022-02-23 11:37:21 +08:00
Jiaming Yuan
2775c2a1ab
Prepare external memory support for hist. ( #7638 )
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This PR prepares the GHistIndexMatrix to host the column matrix which is used by the hist tree method by accepting sparse_threshold parameter.
Some cleanups are made to ensure the correct batch param is being passed into DMatrix along with some additional tests for correctness of SimpleDMatrix.
2022-02-10 16:58:02 +08:00
Jiaming Yuan
bf7bb575b4
Test CPU histogram with cat data. ( #7465 )
2021-11-27 00:43:28 +08:00
Jiaming Yuan
176110a22d
Support external memory in CPU histogram building. ( #7372 )
2021-11-23 01:13:33 +08:00
Jiaming Yuan
8e619010d0
Extract CPUExpandEntry and HistParam. ( #7321 )
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* Remove kRootNid.
* Check for empty hessian.
2021-10-17 14:22:25 +08:00
Jiaming Yuan
149f209af6
Extract histogram builder from CPU Hist. ( #7152 )
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* Extract the CPU histogram builder.
* Fix tests.
* Reduce number of histograms being built.
2021-08-09 21:15:21 +08:00
