test.py

#!/usr/bin/env python3
"""
Simple Gradio Dropdown Test
Test basic dropdown functionality with GPU detection
"""

import gradio as gr
import torch
import os

def get_test_gpus():
    """Simple GPU detection for testing"""
    gpus = []
    
    if torch.cuda.is_available():
        device_count = torch.cuda.device_count()
        print(f"CUDA devices found: {device_count}")
        
        for i in range(device_count):
            try:
                name = torch.cuda.get_device_name(i)
                memory = torch.cuda.get_device_properties(i).total_memory / (1024**3)
                gpu_option = f"GPU {i}: {name} ({memory:.1f}GB)"
                gpus.append(gpu_option)
                print(f"Added: {gpu_option}")
            except Exception as e:
                print(f"Error with GPU {i}: {e}")
                gpus.append(f"GPU {i}: Error")
    
    gpus.append("CPU Only")
    
    print(f"Final GPU list: {gpus}")
    return gpus

def on_gpu_change(selected_gpu):
    """Handle GPU selection change"""
    print(f"Selected GPU: {selected_gpu}")
    return f"You selected: {selected_gpu}"

def refresh_gpus():
    """Refresh GPU list"""
    new_gpus = get_test_gpus()
    print(f"Refreshed GPUs: {new_gpus}")
    return gr.update(choices=new_gpus, value=new_gpus[0])

# Get initial GPU list
gpu_list = get_test_gpus()

# Create simple interface
with gr.Blocks(title="GPU Dropdown Test") as demo:
    gr.Markdown("# GPU Dropdown Test")
    
    with gr.Row():
        gpu_dropdown = gr.Dropdown(
            label="Select GPU",
            choices=gpu_list,
            value=gpu_list[0] if gpu_list else None,
            interactive=True,
            allow_custom_value=False,
            scale=4
        )
        
        refresh_btn = gr.Button("🔄 Refresh", scale=1)
    
    output_text = gr.Textbox(
        label="Selected",
        value=f"Current selection: {gpu_list[0] if gpu_list else 'None'}",
        interactive=False
    )
    
    status_text = gr.Textbox(
        label="Status",
        value=f"Detected {len(gpu_list)} options: {', '.join(gpu_list)}",
        interactive=False,
        lines=2
    )
    
    # Event handlers
    gpu_dropdown.change(on_gpu_change, inputs=[gpu_dropdown], outputs=[output_text])
    refresh_btn.click(refresh_gpus, outputs=[gpu_dropdown])

if __name__ == "__main__":
    demo.launch(debug=True)