Copy data from Ellpack to GHist. (#8215)

2022-09-06 23:05:49 +08:00
parent 7ee10e3dbd
commit 441ffc017a
16 changed files with 466 additions and 112 deletions
--- a/tests/cpp/tree/test_quantile_hist.cc
+++ b/tests/cpp/tree/test_quantile_hist.cc
@@ -37,7 +37,7 @@ TEST(QuantileHist, Partitioner) {
    GHistIndexMatrix gmat(page, {}, cuts, 64, true, 0.5, ctx.Threads());
    bst_feature_t const split_ind = 0;
    common::ColumnMatrix column_indices;
-    column_indices.Init(page, gmat, 0.5, ctx.Threads());
+    column_indices.InitFromSparse(page, gmat, 0.5, ctx.Threads());
    {
      auto min_value = gmat.cut.MinValues()[split_ind];
      RegTree tree;