@mytec: iter3.7.0 start, gpu calc int

backend/app/services/gpu_backend.py

@@ -171,17 +171,34 @@ class GPUManager:
         """Full diagnostic info for troubleshooting GPU detection."""
         import sys
         import platform
+        import subprocess
+
+        is_wsl = "microsoft" in platform.release().lower()
 
         diag = {
             "python_version": sys.version,
+            "python_executable": sys.executable,
             "platform": platform.platform(),
+            "is_wsl": is_wsl,
             "numpy": {"version": np.__version__},
             "cuda": {},
             "opencl": {},
+            "nvidia_smi": None,
             "detected_devices": len(self._devices),
             "active_backend": self._active_backend.value,
         }
 
+        # Check nvidia-smi (works even without CuPy)
+        try:
+            result = subprocess.run(
+                ["nvidia-smi", "--query-gpu=name,memory.total,driver_version", "--format=csv,noheader"],
+                capture_output=True, text=True, timeout=5
+            )
+            if result.returncode == 0 and result.stdout.strip():
+                diag["nvidia_smi"] = result.stdout.strip()
+        except Exception:
+            diag["nvidia_smi"] = "not found or error"
+
         # Check CuPy/CUDA
         try:
             import cupy as cp
@@ -200,7 +217,10 @@ class GPUManager:
                 }
         except ImportError:
             diag["cuda"]["error"] = "CuPy not installed"
-            diag["cuda"]["install_hint"] = "pip install cupy-cuda12x"
+            if is_wsl:
+                diag["cuda"]["install_hint"] = "pip3 install cupy-cuda12x --break-system-packages"
+            else:
+                diag["cuda"]["install_hint"] = "pip install cupy-cuda12x"
         except Exception as e:
             diag["cuda"]["error"] = str(e)
 
@@ -221,7 +241,10 @@ class GPUManager:
                 diag["opencl"]["platforms"].append(platform_info)
         except ImportError:
             diag["opencl"]["error"] = "PyOpenCL not installed"
-            diag["opencl"]["install_hint"] = "pip install pyopencl"
+            if is_wsl:
+                diag["opencl"]["install_hint"] = "pip3 install pyopencl --break-system-packages"
+            else:
+                diag["opencl"]["install_hint"] = "pip install pyopencl"
         except Exception as e:
             diag["opencl"]["error"] = str(e)