@specs-feup/clava/api/lara/code/Energy.js

A C/C++ source-to-source compiler written in Typescript

import EnergyBase from "@specs-feup/lara/api/lara/code/EnergyBase.js";
import Clava from "../../clava/Clava.js";
import Logger from "./Logger.js";
import IdGenerator from "@specs-feup/lara/api/lara/util/IdGenerator.js";
import PrintOnce from "@specs-feup/lara/api/lara/util/PrintOnce.js";
export default class Energy extends EnergyBase {
    /**
     * Current SpecsRapl library measures uJ.
     */
    getPrintUnit() {
        return "uJ";
    }
    measure($start, prefix = "", $end = $start) {
        //Check for valid joinpoints and additional conditions
        if (!this.measureValidate($start, $end, "function")) {
            return;
        }
        // Message about dependency
        PrintOnce.message("Woven code has dependency to project SpecsRapl, which can be found at https://github.com/specs-feup/specs-c-libs");
        // Adds SpecsRapl include
        Clava.getProgram().addExtraIncludeFromGit("https://github.com/specs-feup/specs-c-libs.git", "SpecsRapl/include/");
        // Adds SpecsRapl source
        Clava.getProgram().addExtraSourceFromGit("https://github.com/specs-feup/specs-c-libs.git", "SpecsRapl/src/");
        Clava.getProgram().addExtraLib("-pthread");
        const logger = new Logger(false, this.filename);
        // Add include
        const $file = $start.getAncestor("file");
        if ($file === undefined) {
            console.log("Could not find the corresponding file of the given joinpoint: " +
                $start.joinPointType);
            return;
        }
        $file.addInclude("rapl.h", false);
        const energyVar = IdGenerator.next("clava_energy_output_");
        const energyVarStart = energyVar + "_start";
        const energyVarEnd = energyVar + "_end";
        const codeBefore = Energy.energy_rapl_measure(energyVarStart);
        const codeAfter = Energy.energy_rapl_measure(energyVarEnd);
        $start.insert("before", codeBefore);
        logger.append(prefix).appendLongLong(energyVarEnd + " - " + energyVarStart);
        if (this.printUnit) {
            logger.append(this.getPrintUnit());
        }
        logger.ln();
        logger.log($end);
        $end.insert("after", codeAfter);
    }
    static energy_rapl_measure(energyVar) {
        return `long long ${energyVar} = rapl_energy();`;
    }
}
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