PCS test: cast agent name to str (#546)

* PCS test: cast agent name to str

tests/rocprofv3/pc-sampling/host-trap/transpose-multiple-agents/conftest.py

@@ -84,4 +84,11 @@ def input_kernel_trace_csv(request):
 def input_agent_info_csv(request):
     filename = request.config.getoption("--input-agent-info-csv")
     with open(filename, "r") as inp:
-        return pd.read_csv(inp)
+        return pd.read_csv(
+            inp,
+            na_filter=False,  # parse empty fields as ""
+            keep_default_na=False,  # parse empty fields as ""
+            dtype={
+                "Name": str,
+            },
+        )

tests/rocprofv3/pc-sampling/stochastic/transpose-multiple-agents/conftest.py

@@ -93,7 +93,14 @@ def input_kernel_trace_csv(request):
 def input_agent_info_csv(request):
     filename = request.config.getoption("--input-agent-info-csv")
     with open(filename, "r") as inp:
-        return pd.read_csv(inp)
+        return pd.read_csv(
+            inp,
+            na_filter=False,  # parse empty fields as ""
+            keep_default_na=False,  # parse empty fields as ""
+            dtype={
+                "Name": str,
+            },
+        )
 
 
 @pytest.fixture