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Fix CPU hist init for sparse dataset. (#4625)

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* Fix CPU hist init for sparse dataset.

* Implement sparse histogram cut.
* Allow empty features.

* Fix windows build, don't use sparse in distributed environment.

* Comments.

* Smaller threshold.

* Fix windows omp.

* Fix msvc lambda capture.

* Fix MSVC macro.

* Fix MSVC initialization list.

* Fix MSVC initialization list x2.

* Preserve categorical feature behavior.

* Rename matrix to sparse cuts.
* Reuse UseGroup.
* Check for categorical data when adding cut.

Co-Authored-By: Philip Hyunsu Cho <chohyu01@cs.washington.edu>

* Sanity check.

* Fix comments.

* Fix comment.
This commit is contained in:
Jiaming Yuan
2019-07-04 19:27:03 -04:00
committed by Philip Hyunsu Cho
parent b7a1f22d24
commit d9a47794a5
33 changed files with 681 additions and 299 deletions
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10
src/tree/constraints.cu
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@@ -170,7 +170,7 @@ void FeatureInteractionConstraint::ClearBuffers() {
CHECK_LE(feature_buffer_.Size(), output_buffer_bits_.Size());
int constexpr kBlockThreads = 256;
const int n_grids = static_cast<int>(
dh::DivRoundUp(input_buffer_bits_.Size(), kBlockThreads));
common::DivRoundUp(input_buffer_bits_.Size(), kBlockThreads));
ClearBuffersKernel<<<n_grids, kBlockThreads>>>(
output_buffer_bits_, input_buffer_bits_);
}
@@ -227,7 +227,7 @@ common::Span<int32_t> FeatureInteractionConstraint::Query(
int constexpr kBlockThreads = 256;
const int n_grids = static_cast<int>(
dh::DivRoundUp(output_buffer_bits_.Size(), kBlockThreads));
common::DivRoundUp(output_buffer_bits_.Size(), kBlockThreads));
SetInputBufferKernel<<<n_grids, kBlockThreads>>>(feature_list, input_buffer_bits_);
QueryFeatureListKernel<<<n_grids, kBlockThreads>>>(
@@ -328,8 +328,8 @@ void FeatureInteractionConstraint::Split(
BitField right = s_node_constraints_[right_id];
dim3 const block3(16, 64, 1);
dim3 const grid3(dh::DivRoundUp(n_sets_, 16),
dh::DivRoundUp(s_fconstraints_.size(), 64));
dim3 const grid3(common::DivRoundUp(n_sets_, 16),
common::DivRoundUp(s_fconstraints_.size(), 64));
RestoreFeatureListFromSetsKernel<<<grid3, block3>>>
(feature_buffer_,
feature_id,
@@ -339,7 +339,7 @@ void FeatureInteractionConstraint::Split(
s_sets_ptr_);
int constexpr kBlockThreads = 256;
const int n_grids = static_cast<int>(dh::DivRoundUp(node.Size(), kBlockThreads));
const int n_grids = static_cast<int>(common::DivRoundUp(node.Size(), kBlockThreads));
InteractionConstraintSplitKernel<<<n_grids, kBlockThreads>>>
(feature_buffer_,
feature_id,