diff --git a/stream/parser/onnx/conv.py b/stream/parser/onnx/conv.py
index d286e4c..d22dafc 100644
--- a/stream/parser/onnx/conv.py
+++ b/stream/parser/onnx/conv.py
@@ -83,8 +83,7 @@ def get_layer_node_user_format(
 
         if is_1d_conv:
             # No FY, OY, IY
-            data["loop_sizes"] = [B, K, G, OX, C, FX]
-            data["loop_dims"] = ["B", "K", "G", "OX", "C", "FX"]
+            loop_size_dict = {"B": B, "K": K, "G": G, "OX": OX, "C": C, "FX": FX}
             data["equation"] = f"O[b][g][k][ox]+=W[{weight_dim}][c][fx]*I[b][g][c][ix]"
             data["pr_loop_dims"] = ["IX"]
             data["pr_loop_sizes"] = [IX]
@@ -99,8 +98,7 @@ def get_layer_node_user_format(
             FY = kernel_shape[1]  # TODO is kernel_shape in (FX, FY) format or (FY, FX)? (I assumed the former)
             IY = input_shape[3]
             OY = output_shape[3]
-            data["loop_sizes"] = [B, K, G, OX, C, FX, OY, FY]
-            data["loop_dims"] = ["B", "K", "G", "OX", "C", "FX", "OY", "FY"]
+            loop_size_dict = {"B": B, "K": K, "G": G, "OX": OX, "C": C, "FX": FX, "OY": OY, "FY": FY}
             data["equation"] = f"O[b][g][k][oy][ox]+=W[{weight_dim}][c][fy][fx]*I[b][g][c][iy][ix]"
             data["pr_loop_dims"] = ["IX", "IY"]
             data["pr_loop_sizes"] = [IX, IY]
@@ -113,22 +111,15 @@ def get_layer_node_user_format(
                 [padding[1], padding[3]],
             ]
 
-        # Remove dims with size 1, except batch
-        dim_sizes_larger_than_1 = {
-            dim: size for dim, size in zip(data["loop_dims"], data["loop_sizes"]) if size > 1 or dim == "B"
-        }
-        dims_with_size_1 = [dim for dim in data["loop_dims"] if dim not in dim_sizes_larger_than_1]
-        data["loop_dims"] = list(dim_sizes_larger_than_1.keys())
-        data["loop_sizes"] = list(dim_sizes_larger_than_1.values())
-        for dim in dims_with_size_1:
-            data["equation"] = data["equation"].replace(f"[{dim.lower()}]", "")
-
-        # Filter out loops with size 1
-        # loop_sizes = {"B": B, "K": K, "G": G, "OX": OX, "OY": OY, "C": C, "FX": FX, "FY": FY}
-        # dims_with_size_1 = [k for k, v in loop_sizes.items() if v == 1]
-        # loop_sizes = {k: v for k, v in loop_sizes.items() if v > 1}
-        # data["loop_dims"] = list(loop_sizes.keys())
-        # data["loop_sizes"] = list(loop_sizes.values())
+        # Remove C/K if they have size 1
+        for dim in ["C", "K"]:
+            if loop_size_dict[dim] == 1:
+                del loop_size_dict[dim]
+                # Remove from equation
+                data["equation"] = data["equation"].replace(f"[{dim.lower()}]", "")
+
+        data["loop_dims"] = list(loop_size_dict.keys())
+        data["loop_sizes"] = list(loop_size_dict.values())
 
         return data
 
diff --git a/stream/parser/onnx/operator_parser.py b/stream/parser/onnx/operator_parser.py
index a434589..78d5e99 100644
--- a/stream/parser/onnx/operator_parser.py
+++ b/stream/parser/onnx/operator_parser.py
@@ -68,6 +68,14 @@ def get_operand_precision_user_format(self) -> dict[str, int]:
         intermediate_output_precision: int = self.get_intermediate_output_precision()
         predecessors = self.get_node_predecessors()
         match len(predecessors):
+            case 0:
+                # e.g. the first node in the network -> assume only one variable input
+                return {
+                    "W": weight_precision,
+                    "I": act_precision,
+                    "O_final": act_precision,
+                    "O": intermediate_output_precision,
+                }
             case 1:
                 # One source operand, one constant
                 return {
diff --git a/stream/workload/computation/pooling_node.py b/stream/workload/computation/pooling_node.py
index 0c4151c..74a2716 100644
--- a/stream/workload/computation/pooling_node.py
+++ b/stream/workload/computation/pooling_node.py
@@ -5,12 +5,15 @@
 
 
 class PoolingNode(ComputationNode):
+    """TODO this node can be replaced by instantiating ComputationNode directly"""
+
     def __init__(
         self,
         node_id: int,
         node_name: str,
         node_attr: LayerNodeAttributes,
         mapping_attr: InterCoreMappingAttributes,
+        input_names: list[str] = [],
     ):
         super().__init__(
             node_id=node_id,
@@ -18,4 +21,5 @@ def __init__(
             node_attr=node_attr,
             mapping_attr=mapping_attr,
             op_type="pooling",
+            input_names=input_names,
         )