fix[hardware_predict]: Fixed rebuild when hardware predict, changed default to shared_lib

Author: Djokzer

hls4ml/backends/vitis_accelerator/vitis_accelerator_backend.py

@@ -114,13 +114,21 @@ def dat_to_numpy(self, model):
         y = np.loadtxt(output_file, dtype=float).reshape(-1, expected_shape)
         return y
 
-    def hardware_predict(self, model, x, target="hw", debug=False, profilingRepeat=-1, method="file"):
+    def hardware_predict(self, model, x, target="hw", debug=False, profilingRepeat=-1, method="lib"):
         if method == "file":
             """Run the hardware prediction using file-based communication."""
+            
             command = ""
 
             if debug:
                 command += "DEBUG=1 "
+                xclbin_path = model.config.get_output_dir() + "/build_hw_deb/kernel_wrapper.xclbin"
+            else:
+                xclbin_path = model.config.get_output_dir() + "/build_hw_rel/kernel_wrapper.xclbin"
+
+            if not os.path.exists(xclbin_path):
+                raise Exception(f"XCLBIN file {xclbin_path} does not exist. Please run build first.")
+
             if isinstance(profilingRepeat, int) and profilingRepeat > 0:
                 command += "PROFILING_DATA_REPEAT_COUNT=" + profilingRepeat + " "
             self._validate_target(target)

hls4ml/backends/vitis_accelerator/vitis_accelerator_config.py

@@ -32,7 +32,7 @@ def __init__(self, config):
                 else:
                     print(
                         "WARNING: You set an unrecognized Platform."
-                        "Using " + platforms[0] + " platform instead"
+                        "Using " + platforms[0] + " platform instead."
                     )
                     self.platform = platforms[0]
             else:

hls4ml/templates/vitis_accelerator/Makefile

@@ -124,7 +124,7 @@ host_shared: $(KERNEL_NAME)_host_cl.cpp libs/xcl2.cpp $(wildcard libs/*.hpp)
 
 # Execute program #############################################################
 
-run: ./host $(BUILD_DIR)/$(WRAPPER_NAME).xclbin
+run: ./host #$(BUILD_DIR)/$(WRAPPER_NAME).xclbin
 ifeq ($(TARGET), hw)
 	@echo "TARGET is hw, not setting XCL_EMULATION_MODE"
 	$(eval EMULATION_MODE :=)