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[EM] Return a full DMatrix instead of a Ellpack from the GPU sampler. (#10753)

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This commit is contained in:
Jiaming Yuan
2024-08-28 01:05:11 +08:00
committed by GitHub
parent d6ebcfb032
commit bde1265caf
20 changed files with 525 additions and 214 deletions
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15
tests/cpp/common/test_linalg.cu
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@@ -2,8 +2,9 @@
* Copyright 2021-2024, XGBoost Contributors
*/
#include <gtest/gtest.h>
#include <thrust/equal.h> // for equal
#include <thrust/sequence.h> // for sequence
#include <thrust/equal.h> // for equal
#include <thrust/iterator/constant_iterator.h> // for make_constant_iterator
#include <thrust/sequence.h> // for sequence
#include "../../../src/common/cuda_context.cuh"
#include "../../../src/common/linalg_op.cuh"
@@ -83,6 +84,14 @@ void TestSlice() {
}
});
}
void TestWriteAccess(CUDAContext const* cuctx, linalg::TensorView<double, 3> t) {
thrust::for_each(cuctx->CTP(), linalg::tbegin(t), linalg::tend(t),
[=] XGBOOST_DEVICE(double& v) { v = 0; });
auto eq = thrust::equal(cuctx->CTP(), linalg::tcbegin(t), linalg::tcend(t),
thrust::make_constant_iterator<double>(0.0), thrust::equal_to<>{});
ASSERT_TRUE(eq);
}
} // anonymous namespace
TEST(Linalg, GPUElementWise) { TestElementWiseKernel(); }
@@ -106,5 +115,7 @@ TEST(Linalg, GPUIter) {
bool eq = thrust::equal(cuctx->CTP(), data.cbegin(), data.cend(), linalg::tcbegin(t));
ASSERT_TRUE(eq);
TestWriteAccess(cuctx, t);
}
} // namespace xgboost::linalg