60 lines
1.8 KiB
Markdown
60 lines
1.8 KiB
Markdown
# NVIDIA GPU-based FAN controller for SUPERMICRO server
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This controller enables automatic adjustments of FANs in SUPERMICRO servers based on GPU temperature. Only NVIDIA GPUs are supported since the tool uses nvidia-smi to parse the GPU temperature. FANs are controlled through IPMI tool (`impitool`) using the modified superfans (https://github.com/putnam/superfans) script.
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# Requirements
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* Linux (tested on Ubuntu 18.04)
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* Python 2.7
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* nvidia drivers/tools (`nvidia-smi`)
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* IPMI tool (`impitool`) with loaded module (`modprobe ipmi_devintf`)
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Tested on SUPERMICRO 4029GP TRT2 with RTX 2080 Ti (nvidia 415.27 drivers).
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NOTE: Using on other systems requires manual calibration of conversion function for FAN RPM to %-based values. Current this is hardcoded for SUPERMICRO 4029GP TRT2.
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# Usage
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Directly call python script (requires sudo access for `impitool`):
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```bash
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sudo python superfans_gpu_controller.py
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```
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Or install systemd service (`superfans-gpu-controller.service`):
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```bash
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sudo chmod +x ./install_daemon.sh
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sudo ./install_daemon.sh
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```
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Service is registered to start at system startup. Start and stop it using:
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```bash
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# start
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sudo systemctl start superfans-gpu-controller
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# stop
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sudo systemctl stop superfans-gpu-controller
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# check the status
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sudo systemctl status superfans-gpu-controller
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# view logs (with trailing)
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sudo journalctl -f -u superfans-gpu-controller
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```
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# Settings
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Currently the settings are hardcoded into superfans_gpu_controller.py using the following table:
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* 0°C => 25%
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* 60°C => 30%
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* 70°C => 36%
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* 80°C => 40%
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* 85°C => 45%
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* 90°C => 50%
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At full workload using 4x RTX 2080 Ti this results in around 75°C - 80°C at GPU.
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## TODO:
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* split settings into seperate config file
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* enable linear increases between each setting point
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* enable online calibration of FANs (currenlty hardcoded for SUPERMICRO 4029GP TRT2!!)
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