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fix: fix bug that ListConstruct in TRT subgraph when it's entire graph's output #1220

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Merged
merged 1 commit into from
Aug 2, 2022
Merged

fix: fix bug that ListConstruct in TRT subgraph when it's entire graph's output #1220

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13 changes: 13 additions & 0 deletions core/partitioning/partitioning.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,16 @@ std::vector<torch::jit::Node*> getDependencyNodes(
return stk;
}

void find_nontensor_output_nodes(
torch::jit::Block* block,
std::unordered_map<torch::jit::Node*, int>& global_fallback_nodes) {
for (auto i : block->outputs()) {
if (!isTensor(i)) {
global_fallback_nodes.insert({i->node(), FallbackNodeType::kNON_TENSOR});
}
}
}

void find_all_fallback_nodes(
std::unordered_map<torch::jit::Node*, int>& initial_fallback_nodes,
std::unordered_map<torch::jit::Node*, int>& global_fallback_nodes) {
Expand Down Expand Up @@ -430,6 +440,9 @@ PartitionedGraph Partition(
const PartitionInfo& partition_info,
std::unordered_map<torch::jit::Node*, int>& global_fallback_nodes) {
LOG_DEBUG(partition_info);
// if there is nonTensor output for the entire graph, fallback the node that produces this nonTensor output
find_nontensor_output_nodes(block, global_fallback_nodes);

// segment lowering global graph into blocks
LOG_DEBUG("Parititioning source module into PyTorch and TensorRT sub blocks");
PartitionedGraph segmented_blocks = segment_graph(block, partition_info, global_fallback_nodes);
Expand Down