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178 lines (165 loc) · 7.02 KB
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/*
* SPDX-FileCopyrightText: Copyright (c) 2019-2025, NVIDIA CORPORATION.
* SPDX-License-Identifier: Apache-2.0
*/
#include <cuml/common/distance_type.hpp>
#include <cuml/metrics/metrics.hpp>
#include <raft/core/handle.hpp>
#include <cuvs/distance/distance.hpp>
namespace ML {
namespace Metrics {
void pairwise_distance(const raft::handle_t& handle,
const double* x,
const double* y,
double* dist,
int m,
int n,
int k,
ML::distance::DistanceType metric,
bool isRowMajor,
double metric_arg)
{
if (isRowMajor) {
cuvs::distance::pairwise_distance(
handle,
raft::make_device_matrix_view<const double, int64_t, raft::row_major>(x, m, k),
raft::make_device_matrix_view<const double, int64_t, raft::row_major>(y, n, k),
raft::make_device_matrix_view<double, int64_t, raft::row_major>(dist, m, n),
static_cast<cuvs::distance::DistanceType>(metric),
metric_arg);
} else {
cuvs::distance::pairwise_distance(
handle,
raft::make_device_matrix_view<const double, int64_t, raft::col_major>(x, m, k),
raft::make_device_matrix_view<const double, int64_t, raft::col_major>(y, n, k),
raft::make_device_matrix_view<double, int64_t, raft::col_major>(dist, m, n),
static_cast<cuvs::distance::DistanceType>(metric),
metric_arg);
}
}
void pairwise_distance(const raft::handle_t& handle,
const float* x,
const float* y,
float* dist,
int m,
int n,
int k,
ML::distance::DistanceType metric,
bool isRowMajor,
float metric_arg)
{
if (isRowMajor) {
cuvs::distance::pairwise_distance(
handle,
raft::make_device_matrix_view<const float, int64_t, raft::row_major>(x, m, k),
raft::make_device_matrix_view<const float, int64_t, raft::row_major>(y, n, k),
raft::make_device_matrix_view<float, int64_t, raft::row_major>(dist, m, n),
static_cast<cuvs::distance::DistanceType>(metric),
metric_arg);
} else {
cuvs::distance::pairwise_distance(
handle,
raft::make_device_matrix_view<const float, int64_t, raft::col_major>(x, m, k),
raft::make_device_matrix_view<const float, int64_t, raft::col_major>(y, n, k),
raft::make_device_matrix_view<float, int64_t, raft::col_major>(dist, m, n),
static_cast<cuvs::distance::DistanceType>(metric),
metric_arg);
}
}
template <typename value_idx = int, typename value_t = float>
void pairwiseDistance_sparse(const raft::handle_t& handle,
value_t* x,
value_t* y,
value_t* dist,
value_idx x_nrows,
value_idx y_nrows,
value_idx n_cols,
value_idx x_nnz,
value_idx y_nnz,
value_idx* x_indptr,
value_idx* y_indptr,
value_idx* x_indices,
value_idx* y_indices,
ML::distance::DistanceType metric,
float metric_arg)
{
auto out = raft::make_device_matrix_view<value_t, value_idx>(dist, y_nrows, x_nrows);
auto x_structure = raft::make_device_compressed_structure_view<value_idx, value_idx, value_idx>(
x_indptr, x_indices, x_nrows, n_cols, x_nnz);
auto x_csr_view = raft::make_device_csr_matrix_view<const value_t>(x, x_structure);
auto y_structure = raft::make_device_compressed_structure_view<value_idx, value_idx, value_idx>(
y_indptr, y_indices, y_nrows, n_cols, y_nnz);
auto y_csr_view = raft::make_device_csr_matrix_view<const value_t>(y, y_structure);
cuvs::distance::pairwise_distance(handle,
y_csr_view,
x_csr_view,
out,
static_cast<cuvs::distance::DistanceType>(metric),
metric_arg);
}
void pairwiseDistance_sparse(const raft::handle_t& handle,
float* x,
float* y,
float* dist,
int x_nrows,
int y_nrows,
int n_cols,
int x_nnz,
int y_nnz,
int* x_indptr,
int* y_indptr,
int* x_indices,
int* y_indices,
ML::distance::DistanceType metric,
float metric_arg)
{
pairwiseDistance_sparse<int, float>(handle,
x,
y,
dist,
x_nrows,
y_nrows,
n_cols,
x_nnz,
y_nnz,
x_indptr,
y_indptr,
x_indices,
y_indices,
metric,
metric_arg);
}
void pairwiseDistance_sparse(const raft::handle_t& handle,
double* x,
double* y,
double* dist,
int x_nrows,
int y_nrows,
int n_cols,
int x_nnz,
int y_nnz,
int* x_indptr,
int* y_indptr,
int* x_indices,
int* y_indices,
ML::distance::DistanceType metric,
float metric_arg)
{
pairwiseDistance_sparse<int, double>(handle,
x,
y,
dist,
x_nrows,
y_nrows,
n_cols,
x_nnz,
y_nnz,
x_indptr,
y_indptr,
x_indices,
y_indices,
metric,
metric_arg);
}
} // namespace Metrics
} // namespace ML