ivan tsai
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    # 基本環境需求 <font color="#f00">不同版本</font>的 domjudge 最低要求的環境配置會有所不同,可以依照自身的需求參考[官網](https://www.domjudge.org/docs/manual/master/index.html)提供的最低需求來進行環境設定 硬體/軟體部分 -------- - 執行 DOMjudge 的機器<font color="#f00">(至少一台)</font> - 執行 Linux(或是 Unix variant) - php version 7.25 或是更新的版本(domjudge v7.2.0) - MariaDB 或是 MySQL - 執行 judgehost 的機器<font color="#f00">(至少一台)</font> - 執行 Linux(需要有 sudo 或是 root 存取權限) - 軟體的必須要求是 php cli - 用戶所想要編譯語言的 compiler - team workstation<font color="#f00">(每個參與者/團隊要有一個)</font> - 可以拿來使用 modern browser(chrome Edge等) 或是能與 domjudge 做交互操作 - administrator/jury workstation - 想要配置和監視比賽的陪審員(人員)只需要具有 Web 瀏覽器的任何工作站即可訪問 Web 界面 - 這些機器上沒有執行 DOMjudge 軟體。 需要一台(虛擬)計算機來執行DOMserver。 judgehost 的最小數量也是一個,但最好是更多:取決於配置的時限和每個問題的測試例子的數量,判斷一個提交的解答可以佔用一個 judgehost 幾分鐘,如果一個 judgehost 存在一些 bug,則可以在解決 bug 同時繼續評判的提交解答。 * 根據經驗,官方建議每20個團隊配置一台 judgehost。 過度配置也不會造成損害:DOMjudge 可以輕鬆地根據 judgehost 的數量進行擴展。因此,如果有多餘可用的硬體,則一定要使用它。但是用更少的機器進行比賽將同樣有效,只是團隊獲得答案的等待時間可能會增加。 每個 judgehost 都應是一台專用的(虛擬)計算機,該計算機不執行任何其他任務。 - 例如,儘管可以在與 domserver 相同的機器上運行 judgehost,但除測試目的外,不建議這樣做。 judgehosts 也不應兼任 jury 的 local workstation。使所有judgehost 具有統一的硬體配置,有助於創建公平,可複製的設置;在理想情況下,它們在相同類型的機器上執行。 DOMjudge 支持在一台 judgehost 上同時執行多個審判程序守護程序(judgedaemon)。這在多核心計算機上能有比較好的效能表現。 :::danger 執行 judgehost 的 Linux 需要支援 cgroup 記憶體以及 swap accounting. 不提供此支援的平台(如某些虛擬化環境,例如:WSL1/2)將不是和執行judgehost,有關DOMjudge和SWL的資訊可以參考此[連結](https://github.com/DOMjudge/domjudge/wiki/Running-DOMjudge-in-WSL) :::

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