bug fix for pruner

Author: Archermmt

python/tvm/contrib/msc/core/tools/prune/pruner.py

@@ -340,7 +340,12 @@ def _prune_by_shape(tensor: MSCTensor, shape: List[int]):
         def _prune_by_channel(tensor: MSCTensor, dim, channel_axis: int = None):
             shape = tensor.get_shape()
             if channel_axis is None:
-                channel_axis = tensor.layout_of("C")
+                if self.has_w_node(tensor.name):
+                    w_node = self.find_w_node(tensor.name)
+                    _, channel_axis = self._get_io_axes(w_node)
+                else:
+                    channel_axis = tensor.layout_of("C")
+            assert channel_axis >= 0, "Can not infer channel_axis for " + str(tensor)
             shape[channel_axis] = dim
             return _prune_by_shape(tensor, shape)
 

python/tvm/contrib/msc/core/tools/tool.py

@@ -1620,6 +1620,9 @@ def _get_io_axes(self, w_node: WeightJoint) -> Tuple[int, int]:
         in_axis, out_axis = w_node.weight.layout_of("I"), w_node.weight.layout_of("O")
         if in_axis >= 0 and out_axis >= 0:
             return in_axis, out_axis
+        if w_node.weight.ndim == 2 and w_node.weight.dim_at("N") > 0:
+            io_axis = 1 - w_node.weight.layout_of("N")
+            return io_axis, io_axis
         if w_node.weight.layout_of("C") >= 0:
             return w_node.weight.layout_of("C"), w_node.weight.layout_of("C")
         raise Exception("Can not infer in_axis/out_axis from " + str(w_node))

src/contrib/msc/core/ir/graph.cc

@@ -1116,9 +1116,8 @@ void WeightGraphNode::Build(const MSCGraph& graph, const Map<String, Array<Strin
         const auto& tensor = node->OutputAt(0);
         Map<String, String> attrs;
         attrs.Set("producer_type", node->optype);
-        if (node->optype == "reshape" && node->InputAt(0)->LayoutOf("C") >= 0 &&
-            node->OutputAt(0)->LayoutOf("C") >= 0 &&
-            node->InputAt(0)->DimAt("C")->value == node->OutputAt(0)->DimAt("C")->value) {
+        if (node->optype == "reshape") {
+          // TODO(archermmt): check non-passby reshape
           attrs.Set("weight_strategy", "passby");
         } else {
           attrs.Set("weight_strategy", relation_wtypes[node->optype]);

tests/python/contrib/test_msc/test_tools.py

@@ -47,7 +47,7 @@ def _get_config(
 
     path = "_".join(["test_tools", model_type, compile_type] + [t["tool_type"] for t in tools])
     return {
-        "workspace": msc_utils.msc_dir(path),
+        "workspace": msc_utils.msc_dir(path, keep_history=False),
         "verbose": "critical",
         "model_type": model_type,
         "inputs": inputs,