Node | 節點

  • 節點是什麼?
    電腦科學領域,所謂的「節點」是指資料結構當中,儲存和處理數據的一個基本單位。這個定義非常廣泛,可能代表不同裝置或設備,包含個人電腦、伺服器、伺服器內不同元件、或是功能相似的數台伺服器。簡單來說,節點就是分配運算資源的一種「單位」,讓使用者理解手上掌握多少資源,可同時處理多少工作。舉例來說,技嘉科技H262-P60高密度伺服器在2U機身內裝有四個節點,等於是有四個分開的子系統,能獨立作業;同時,這台伺服器可能在由多台伺服器組成的運算叢集當中,扮演「運算節點」或「控制節點」的角色。

  • 為何需要?
    運算工作永遠做不完,運算資源卻相當有限,身為IT管理者,當然需要一種資源分類方法。因此,在HPC高效能運算系統或資料中心當中,好幾台伺服器可組成一個「節點」,專門負責某項工作:例如,負責運算的「運算節點」,處理器必須提供強大運算效能;負責儲存資料的「儲存節點」,必須安全保護資訊;還有「網路節點」,將不同節點彼此連接,並將整個運算叢集與外界連接。除了這三種節點之外,有時還會追加設計一個「控制節點」,供用戶管控整個運算叢集。

  • 技嘉的特色
    如果您希望您的伺服器能提供很多獨立「子系統」,負責執行不同工作,推薦挑選技嘉科技H系列高密度伺服器,例如H262-Z62,在2U規格機殼內容納高達四個不同節點,一個節點可安裝兩顆64核心AMD EPYC™中央處理器,等於一台伺服器搭載512顆核心、1,024條執行緒,這是很可觀的運算功力。

    如果您需要運算叢集中扮演不同角色的「節點」,技嘉全系列伺服器產品,可提供許多不同功能。比方說,「運算節點」和「控制節點」很講究處理器效能,除了先前提到的H系列高密度伺服器之外,還可採用搭載大量GPGPUG系列GPU協同運算伺服器,用來進行平行運算等工作。S系列儲存伺服器適合拿來擔任「儲存節點」,通用型R系列機架式伺服器可扮演「網路節點」或其他角色。如果您的所在環境類似大學實驗室、小型動畫工作室,沒有自己的伺服器機房,可挑選W系列塔式伺服器/工作站產品,在您的桌上裝置一台運算效能強大的伺服器。

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