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Fix 0 recall issue in raft_cagra_hnswlib ANN benchmark #2369

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merged 1 commit into from
Jun 27, 2024
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Fix 0 recall issue in raft_cagra_hnswlib ANN benchmark #2369

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fix recall
@divyegala
divyegala committed Jun 27, 2024

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jeff-mccoy Megamind
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Learn about vigilant mode
commit b7a8d925ef3e29a6bf08a7cc072e2468312b1c3a
2 changes: 1 addition & 1 deletion cpp/bench/ann/src/raft/raft_cagra_hnswlib_wrapper.h
View file
Original file line number Diff line number Diff line change
@@ -31,7 +31,7 @@ class RaftCagraHnswlib : public ANN<T>, public AnnGPU {

RaftCagraHnswlib(Metric metric, int dim, const BuildParam& param, int concurrent_searches = 1)
: ANN<T>(metric, dim),
cagra_build_{metric, dim, param, concurrent_searches},
cagra_build_{metric, dim, param, concurrent_searches, true},
// HnswLib param values don't matter since we don't build with HnswLib
hnswlib_search_{metric, dim, typename HnswLib<T>::BuildParam{50, 100}}
{
12 changes: 9 additions & 3 deletions cpp/bench/ann/src/raft/raft_cagra_wrapper.h
View file
Original file line number Diff line number Diff line change
@@ -72,11 +72,16 @@ class RaftCagra : public ANN<T>, public AnnGPU {
std::optional<raft::neighbors::ivf_pq::search_params> ivf_pq_search_params = std::nullopt;
};

RaftCagra(Metric metric, int dim, const BuildParam& param, int concurrent_searches = 1)
RaftCagra(Metric metric,
int dim,
const BuildParam& param,
int concurrent_searches = 1,
bool shall_include_dataset = false)
: ANN<T>(metric, dim),
index_params_(param),
dimension_(dim),
need_dataset_update_(true),
shall_include_dataset_(shall_include_dataset),
dataset_(std::make_shared<raft::device_matrix<T, int64_t, row_major>>(
std::move(make_device_matrix<T, int64_t>(handle_, 0, 0)))),
graph_(std::make_shared<raft::device_matrix<IdxT, int64_t, row_major>>(
@@ -135,6 +140,7 @@ class RaftCagra : public ANN<T>, public AnnGPU {
float refine_ratio_;
BuildParam index_params_;
bool need_dataset_update_;
bool shall_include_dataset_;
raft::neighbors::cagra::search_params search_params_;
std::shared_ptr<raft::neighbors::cagra::index<T, IdxT>> index_;
int dimension_;
@@ -161,7 +167,7 @@ void RaftCagra<T, IdxT>::build(const T* dataset, size_t nrow)
auto& params = index_params_.cagra_params;

// Do include the compressed dataset for the CAGRA-Q
bool shall_include_dataset = params.compression.has_value();
bool include_dataset = params.compression.has_value() || shall_include_dataset_;

index_ = std::make_shared<raft::neighbors::cagra::index<T, IdxT>>(
std::move(raft::neighbors::cagra::detail::build(handle_,
@@ -171,7 +177,7 @@ void RaftCagra<T, IdxT>::build(const T* dataset, size_t nrow)
index_params_.ivf_pq_refine_rate,
index_params_.ivf_pq_build_params,
index_params_.ivf_pq_search_params,
shall_include_dataset)));
include_dataset)));
}

inline std::string allocator_to_string(AllocatorType mem_type)