استفاده از یک الگوریتم بهینه‌سازی چند هدفه برای تخصیص کارها در سیستمهای مبتنی بر ابر با هدف کاهش انرژی مصرفی
الموضوعات :سارا طبقچی میلان 1 , نیما جعفری نویمی پور 2
1 - گروه مهندسی کامپیوتر، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران
2 - گروه مهندسی کامپیوتر، واحد تبریز، دانشگاه آزاد اسلامی، تبریز، ایران
الکلمات المفتاحية: رایانش ابری, انرژی مصرفی, تخصیص کار, الگوریتم بهینه‌سازی چند هدفه,
ملخص المقالة :
افزایش تقاضا منجر به افزایش تنوع، تعداد خدمات و درنتیجه ایجاد مراکز داده رایانش با مقیاس بزرگ‌شده است که علاوه بر هزینههای عملیاتی بالا، مقادیر عظیمی از توان الکتریکی را مصرف میکند. از طرفی سیستمهای خنک‌کننده ناکافی و ناکارآمد، نه‌تنها باعث گرم شدن بیش‌ازحد منابع و کاهش عمر کاری دستگاه‌ها می‌شود، بلکه باعث تولید کربن شده که در وضعیت آب‌وهوا نقش مهمی دارد. ازاین‌رو، در این پژوهش، یک روش مؤثر مدیریت منابع انرژی در مراکز داده ابری مجازی شده ارائه‌شده که علاوه بر کاهش مصرف انرژی و هزینههای عملیاتی، باعث افزایش کیفیت خدمات نیز شده است. این پژوهش، به ارائه یک استراتژی تخصیص منبع در سیستمهای ابری باهدف کاهش انرژی و هزینه اجرا پرداخته و کاربرد آن را در محیط رایانش ابری بررسی میکند. نتایج حاصل از شبیهسازی نشان میدهد که روش پیشنهادی میتواند نسبت به روشهای NPA[1]، [2]DVFS، [3]ST و [4]MM ، میانگین انرژی مصرفی را تا 0.626 کیلووات ساعت کاهش دهد، همچنین نیاز به مهاجرت و موارد نقض SLA نیز به ترتیب به 186 و 30.91% کاهش پیدا نمود.
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