| |
| """ |
| Monitor GPU stats and output as a formatted table. |
| """ |
|
|
| import subprocess |
| import time |
| import argparse |
| from datetime import datetime |
|
|
|
|
| def get_gpu_stats(): |
| """Query GPU stats using nvidia-smi.""" |
| cmd = [ |
| "nvidia-smi", |
| "--query-gpu=utilization.gpu,utilization.memory,memory.used,memory.total", |
| "--format=csv,noheader,nounits" |
| ] |
| result = subprocess.run(cmd, capture_output=True, text=True) |
| if result.returncode != 0: |
| return None |
|
|
| values = result.stdout.strip().split(", ") |
| if len(values) != 4: |
| return None |
|
|
| return { |
| "gpu_util": int(values[0]), |
| "mem_util": int(values[1]), |
| "mem_used": int(values[2]), |
| "mem_total": int(values[3]) |
| } |
|
|
|
|
| def print_header(): |
| """Print table header.""" |
| print("+" + "-" * 25 + "+" + "-" * 12 + "+" + "-" * 12 + "+" + "-" * 18 + "+" + "-" * 18 + "+") |
| print(f"| {'Timestamp':<23} | {'GPU %':>10} | {'Mem %':>10} | {'Used (MiB)':>16} | {'Total (MiB)':>16} |") |
| print("+" + "-" * 25 + "+" + "-" * 12 + "+" + "-" * 12 + "+" + "-" * 18 + "+" + "-" * 18 + "+") |
|
|
|
|
| def print_row(stats): |
| """Print a table row.""" |
| timestamp = datetime.now().strftime("%Y/%m/%d %H:%M:%S.%f")[:-3] |
| print(f"| {timestamp:<23} | {stats['gpu_util']:>10} | {stats['mem_util']:>10} | {stats['mem_used']:>16} | {stats['mem_total']:>16} |") |
|
|
|
|
| def print_footer(): |
| """Print table footer.""" |
| print("+" + "-" * 25 + "+" + "-" * 12 + "+" + "-" * 12 + "+" + "-" * 18 + "+" + "-" * 18 + "+") |
|
|
|
|
| def main(): |
| parser = argparse.ArgumentParser(description="Monitor GPU stats as a formatted table") |
| parser.add_argument("-i", "--interval", type=float, default=2.0, help="Sampling interval in seconds (default: 2.0)") |
| parser.add_argument("-n", "--count", type=int, default=0, help="Number of samples (0 = infinite)") |
| args = parser.parse_args() |
|
|
| print_header() |
|
|
| count = 0 |
| try: |
| while args.count == 0 or count < args.count: |
| stats = get_gpu_stats() |
| if stats: |
| print_row(stats) |
| else: |
| print("| ERROR: Could not get GPU stats" + " " * 47 + "|") |
|
|
| count += 1 |
| if args.count == 0 or count < args.count: |
| time.sleep(args.interval) |
| except KeyboardInterrupt: |
| pass |
|
|
| print_footer() |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
