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add fan curve

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This commit is contained in:
Carl Philipp Klemm 2023-05-02 12:23:28 +02:00
parent 0e9cd620c4
commit 04fadc760c
1 changed files with 46 additions and 2 deletions
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48
main.cpp
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@ -6,6 +6,7 @@
#include <sensors/sensors.h>
#include <sensors/error.h>
#include <signal.h>
#include <limits>
#include "ipmi.h"
#include "lm.h"
@ -54,13 +55,56 @@ std::vector<Sensor> gather_sensors(std::vector<Sensor>& ipmi_sensors, ipmi_monit
return out;
}
std::vector<double> get_fan_zones(const std::vector<Sensor>& sensors)
double fan_curve(double temperature, double min_fan, double max_fan, double low_temperature, double high_temperature)
{
double slope = (max_fan-min_fan)/(low_temperature-high_temperature);
return std::min(max_fan, min_fan+slope*temperature-low_temperature);
}
double gpu_fan_zone(const std::vector<Sensor>& sensors)
{
const char mi50Chip[] = "amdgpu-pci-2300";
const char mi25Chip[] = "amdgpu-pci-4300";
const char monitored_sensor_name[] = "edge";
double max_temp = std::numeric_limits<double>::min();
for(const Sensor& sensor : sensors)
{
if((sensor.chip == mi50Chip || sensor.chip == mi25Chip) && sensor.name == monitored_sensor_name)
{
if(max_temp < sensor.reading)
max_temp = sensor.reading;
}
}
return fan_curve(max_temp, 0.2, 1.0, 40, 75);
}
double system_fan_zone(const std::vector<Sensor>& sensors)
{
Sensor cpu("IPMI", "CPU Temp");
Sensor system("IPMI", "System Temp");
std::vector<double> out;
for(const Sensor& sensor : sensors)
std::cout<<sensor.chip<<' '<<sensor.name<<": "<<sensor.reading<<'\n';
{
if(cpu == sensor)
cpu = sensor;
else if(sensor == system)
system = sensor;
}
double fanSystem = fan_curve(system.reading, 0.2, 1.0, 35, 45);
double fanCpu = fan_curve(cpu.reading, 0.2, 1.0, 40, 70);
return std::max(fanSystem, fanCpu);
}
std::vector<double> get_fan_zones(const std::vector<Sensor>& sensors)
{
std::vector<double> out;
out.push_back(system_fan_zone(sensors));
out.push_back(gpu_fan_zone(sensors));
return out;
}