supermicro gpu server fancurve script

supermicro_fan.py

import os
import time
import subprocess

# speed 0-100, speed is for zone0, zone1 will have speed -2
zone_info = [
    {
        "hex": "0x00",
        "f_low_speed": 11,
        "f_high_speed": 88,
        "f_low_temp": 60,
        "f_high_temp": 83,
        "items": [4, 4761]
    },
    {
        "hex": "0x01",
        "f_low_speed": 8,
        "f_high_speed": 86,
        "f_low_temp": 60,
        "f_high_temp": 84,
        "items": [71]
    }
]

os.system("ipmitool raw 0x30 0x45 0x01 0x01")

while True:
    reading_str = subprocess.check_output(
        ["ipmi-sensors", "-s", "4,71,4761", "--comma-separated-output", "--no-header-output"]).decode()
    reading_lines = reading_str.splitlines()
    reading_split = list(map(lambda x: x.split(","), reading_lines))

    for zone in zone_info:
        temp = max(map(lambda x: float(x[3]), filter(lambda x: x[0] in map(str, zone["items"]), reading_split)))
        if temp < zone["f_low_temp"]:
            f_speed = zone["f_low_speed"]
        elif temp > zone["f_high_temp"]:
            f_speed = zone["f_high_speed"]
        else:
            f_speed_f = zone["f_low_speed"] + (
                    (temp - zone["f_low_temp"]) / (zone["f_high_temp"] - zone["f_low_temp"]) * (
                    zone["f_high_speed"] - zone["f_low_speed"]))
            f_speed = int(f_speed_f)

        print(hex(f_speed))
        print(temp)
        command = 'ipmitool raw 0x30 0x70 0x66 0x01 ' + zone["hex"] + " " + hex(f_speed)
        os.system(command)
        time.sleep(0.75)