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avoid async copy crash when extremely large concurrency #410

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avoid async copy crash when extremely large concurrency #410

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5 changes: 5 additions & 0 deletions src/common/raft/integration/raft_knowhere_index.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -416,6 +416,7 @@ struct raft_knowhere_index<IndexKind>::impl {
res, index_params, raft::make_const_mdspan(host_data));
}
}
this->synchronize();
}

void
Expand Down Expand Up @@ -462,6 +463,7 @@ struct raft_knowhere_index<IndexKind>::impl {
RAFT_FAIL("Index has not yet been trained");
}
}
this->synchronize();
}

auto
Expand Down Expand Up @@ -576,6 +578,7 @@ struct raft_knowhere_index<IndexKind>::impl {
raft::copy(res, host_ids, device_knowhere_ids);
raft::copy(res, host_distances, device_distances);
}
this->synchronize();
return std::make_tuple(ids.release(), distances.release());
}
void
Expand All @@ -601,6 +604,7 @@ struct raft_knowhere_index<IndexKind>::impl {
} else {
raft::serialize_scalar(res, os, false);
}
this->synchronize();
}
auto static deserialize(std::istream& is) {
auto new_device_id = select_device_id();
Expand All @@ -621,6 +625,7 @@ struct raft_knowhere_index<IndexKind>::impl {
res, des_index, raft::make_const_mdspan(dataset->view()));
}
}
this->synchronize();
return std::make_unique<typename raft_knowhere_index<index_kind>::impl>(std::move(des_index), new_device_id,
std::move(dataset));
}
Expand Down
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