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2976 rexy 1 
<?php
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/**
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 * nvidiasmi sensor class, getting hardware temperature information and fan speed from nvidia-smi utility
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 *
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 * PHP version 5
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 *
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 * @category  PHP
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 * @package   PSI_Sensor
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 * @author    Mieczyslaw Nalewaj <namiltd@users.sourceforge.net>
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 * @copyright 2020 phpSysInfo
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 * @license   http://opensource.org/licenses/gpl-2.0.php GNU General Public License version 2, or (at your option) any later version
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 * @version   Release: 3.0
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 * @link      http://phpsysinfo.sourceforge.net
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 */
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class NvidiaSMI extends Sensors
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{
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    /**
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     * content to parse
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     *
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     * @var array
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     */
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    private $_gpus = array();
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    /**
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     * fill the private array
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     */
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    public function __construct()
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    {
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        parent::__construct();
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        if (!defined('PSI_EMU_HOSTNAME')) switch (defined('PSI_SENSOR_NVIDIASMI_ACCESS')?strtolower(PSI_SENSOR_NVIDIASMI_ACCESS):'command') {
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        case 'command':
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            if (PSI_OS == 'WINNT') {
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                $winnt_exe = (defined('PSI_SENSOR_NVIDIASMI_EXE_PATH') && is_string(PSI_SENSOR_NVIDIASMI_EXE_PATH))?strtolower(PSI_SENSOR_NVIDIASMI_EXE_PATH):"c:\\Program Files\\NVIDIA Corporation\\NVSMI\\nvidia-smi.exe";
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                if (($_exe=realpath(trim($winnt_exe))) && preg_match("/^([a-zA-Z]:\\\\[^\\\\]+)/", $_exe, $out)) {
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                    CommonFunctions::executeProgram('cmd', "/c set ProgramFiles=".$out[1]."^&\"".$_exe."\" -q", $lines);
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                } else {
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                    $this->error->addConfigError('__construct()', '[sensor_nvidiasmi] EXE_PATH="'.$winnt_exe.'"');
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                }
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            } else {
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                CommonFunctions::executeProgram('nvidia-smi', '-q', $lines);
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            }
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            $this->_gpus = preg_split("/^(?=GPU )/m", $lines, -1, PREG_SPLIT_NO_EMPTY);
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            break;
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        case 'data':
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            if (CommonFunctions::rfts(PSI_APP_ROOT.'/data/nvidiasmi.txt', $lines)) {
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                $this->_gpus = preg_split("/^(?=GPU )/m", $lines, -1, PREG_SPLIT_NO_EMPTY);
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            }
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            break;
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        default:
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            $this->error->addConfigError('__construct()', '[sensor_nvidiasmi] ACCESS');
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            break;
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        }
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    }
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    /**
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     * get the information
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     *
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     * @see PSI_Interface_Sensor::build()
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     *
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     * @return Void
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     */
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    public function build()
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    {
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        $gpuc=count($this->_gpus);
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        switch ($gpuc) {
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            case 0:
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                $this->error->addError("nvidia-smi", "No values");
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                break;
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            case 1:
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                $this->error->addError("nvidia-smi", "Error: ".$this->_gpus[0]);
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                break;
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            default:
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                for ($c = 0; $c < $gpuc; $c++) {
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                    if (preg_match("/^\s+GPU Current Temp\s+:\s*(\d+)\s*C\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        if (preg_match("/^\s+GPU Shutdown Temp\s+:\s*(\d+)\s*C\s*$/m", $this->_gpus[$c], $out)) {
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                            $dev->setMax($out[1]);
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                        }
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                        $this->mbinfo->setMbTemp($dev);
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                    }
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                    if (preg_match("/^\s+Power Draw\s+:\s*([\d\.]+)\s*W\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        if (preg_match("/^\s+Power Limit\s+:\s*([\d\.]+)\s*W\s*$/m", $this->_gpus[$c], $out)) {
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                            $dev->setMax($out[1]);
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                        }
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                        $this->mbinfo->setMbPower($dev);
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                    }
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                    if (preg_match("/^\s+Fan Speed\s+:\s*(\d+)\s*%\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $dev->setUnit("%");
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                        $this->mbinfo->setMbFan($dev);
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                    }
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                    if (preg_match("/^\s+Performance State\s+:\s*(\S+)\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." Performance State (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $this->mbinfo->setMbOther($dev);
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                    }
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                    if (preg_match("/^\s+Gpu\s+:\s*(\d+)\s*%\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." Utilization (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $dev->setUnit("%");
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                        $this->mbinfo->setMbOther($dev);
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                    }
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                    if (preg_match("/^\s+Memory\s+:\s*(\d+)\s*%\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." Memory Utilization (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $dev->setUnit("%");
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                        $this->mbinfo->setMbOther($dev);
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                    }
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                    if (preg_match("/^\s+Encoder\s+:\s*(\d+)\s*%\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." Encoder Utilization (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $dev->setUnit("%");
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                        $this->mbinfo->setMbOther($dev);
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                    }
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                    if (preg_match("/^\s+Decoder\s+:\s*(\d+)\s*%\s*$/m", $this->_gpus[$c], $out)) {
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                        $dev = new SensorDevice();
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                        $dev->setName("GPU ".($c)." Decoder Utilization (nvidiasmi)");
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                        $dev->setValue($out[1]);
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                        $dev->setUnit("%");
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                        $this->mbinfo->setMbOther($dev);
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                    }
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                }
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                break;
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        }
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    }
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}