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Allow input shared across execution providers #1715

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Aug 29, 2019
Merged

Allow input shared across execution providers #1715

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12 changes: 6 additions & 6 deletions onnxruntime/core/framework/session_state.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -205,20 +205,20 @@ common::Status SessionState::AddInputNameToNodeInfoMapping(const std::string& in
// replace existing entry that is for an implicit input with new entry for explicit usage in this graph
entries[0] = node_info;
} else {
// if the providers match we can add the new entry for completeness (it will be ignored in
// if the devices match we can add the new entry for completeness (it will be ignored in
// utils::CopyOneInputAcrossDevices though).
// if they don't, we are broken.
const auto& current_provider = utils::GetNodeInputProviderType(entries[0]);
const auto& new_provider = utils::GetNodeInputProviderType(node_info);
const auto& current_device = entries[0].device;
const auto& new_device = node_info.device;

if (current_provider == new_provider) {
if (current_device == new_device) {
entries.push_back(node_info);
} else {
return ORT_MAKE_STATUS(
ONNXRUNTIME, NOT_IMPLEMENTED,
"Using an input in multiple nodes on different devices is not supported currently. Input:", input_name,
" is used by node ", existing_entry.p_node->Name(), " (", current_provider, ") and node ",
node_info.p_node->Name(), " (", new_provider, ").");
" is used by node ", existing_entry.p_node->Name(), " (", current_device->ToString(), ") and node ",
node_info.p_node->Name(), " (", new_device->ToString(), ").");
}
}
}
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