test(bench): p2-parakeet-dml contender (Parakeet on the iGPU via DirectML EP)

src-tauri/examples/asr_bench.rs

@@ -211,11 +211,12 @@ fn load_engine(contender: &str) -> Result<Engine, String> {
                 .map(Engine::Onnx)
                 .map_err(|e| e.to_string())
         }
-        p if p.starts_with("p1-parakeet-t") => {
+        p if p.starts_with("p1-parakeet-t") || p.starts_with("p2-parakeet-dml-t") => {
+            let dml = p.starts_with("p2-");
             let threads: i32 = p
-                .trim_start_matches("p1-parakeet-t")
-                .parse()
-                .map_err(|_| format!("bad thread count in '{p}'"))?;
+                .rsplit_once('t')
+                .and_then(|(_, n)| n.parse().ok())
+                .ok_or_else(|| format!("bad thread count in '{p}'"))?;
             let dir = paths::models_dir().join("bench-parakeet");
             let config = sherpa_rs::transducer::TransducerConfig {
                 encoder: find_onnx(&dir, "encoder")?.to_string_lossy().into_owned(),
@@ -227,7 +228,11 @@ fn load_engine(contender: &str) -> Result<Engine, String> {
                 sample_rate: SAMPLE_RATE as i32,
                 feature_dim: 80,
                 num_threads: threads,
-                provider: Some("cpu".to_string()),
+                // "directml" needs the bench-directml cargo feature (DirectML
+                // sherpa-onnx binaries); with plain binaries sherpa falls back
+                // noisily and the run is invalid — P2 rows only count from a
+                // bench-directml build.
+                provider: Some(if dml { "directml" } else { "cpu" }.to_string()),
                 ..Default::default()
             };
             sherpa_rs::transducer::TransducerRecognizer::new(config)
@@ -235,7 +240,7 @@ fn load_engine(contender: &str) -> Result<Engine, String> {
                 .map_err(|e| e.to_string())
         }
         other => Err(format!(
-            "unknown contender '{other}' (w1-cpu-base | w2-vulkan-base | w3-vulkan-medium | w4-npu-onnx | p1-parakeet-t<N>)"
+            "unknown contender '{other}' (w1-cpu-base | w2-vulkan-base | w3-vulkan-medium | w4-npu-onnx | p1-parakeet-t<N> | p2-parakeet-dml-t<N>)"
         )),
     }
 }