Hendrik/xgboost
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Deterministic data partitioning for external memory (#6317)

Browse Source 
* Make external memory data partitioning deterministic.

* Change the meaning of `page_size` from bytes to number of rows.

* Design a data pool.

* Note for external memory.

* Enable unity build on Windows CI.

* Force garbage collect on test.
This commit is contained in:
Jiaming Yuan
2020-11-11 06:11:06 +08:00
committed by GitHub
parent 9564886d9f
commit 43efadea2e
15 changed files with 334 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tests/cpp/common/test_column_matrix.cc
View File

@@ -130,8 +130,10 @@ TEST(DenseColumnWithMissing, Test) {
void TestGHistIndexMatrixCreation(size_t nthreads) {
dmlc::TemporaryDirectory tmpdir;
std::string filename = tmpdir.path + "/big.libsvm";
size_t constexpr kPageSize = 1024, kEntriesPerCol = 3;
size_t constexpr kEntries = kPageSize * kEntriesPerCol * 2;
/* This should create multiple sparse pages */
std::unique_ptr<DMatrix> dmat{ CreateSparsePageDMatrix(1024, 1024, filename) };
std::unique_ptr<DMatrix> dmat{ CreateSparsePageDMatrix(kEntries, kPageSize, filename) };
omp_set_num_threads(nthreads);
GHistIndexMatrix gmat;
gmat.Init(dmat.get(), 256);