Method FillGroupOrder

catboost/cuda/data/permutation.cpp:20–28

}

void NCatboostCuda::TDataPermutation::FillGroupOrder(TVector<ui32>& groupOrder) const {
    CB_ENSURE_INTERNAL(DataProvider->MetaInfo.HasGroupId, "FillGroupOrder supports only datasets with group ids");
    if (Index != IdentityPermutationId()) {
        Shuffle(GetSeed(), BlockSize, DataProvider->ObjectsGrouping->GetGroupCount(), &groupOrder);
    } else {
        groupOrder.yresize(DataProvider->ObjectsGrouping->GetGroupCount());
        std::iota(groupOrder.begin(), groupOrder.end(), 0);
    }
}

void NCatboostCuda::TDataPermutation::FillInversePermutation(TVector<ui32>& permutation) const {
    TVector<ui32> order;