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