---
# System prepended metadata

title: 8/26
tags: [會議記錄]

---

---
title: 8/26
tags: 會議記錄
---
進度報告
===
* hw1:完成
* hw2:不知道client如何操作
>https://docs.oracle.com/cd/E19708-01/821-1319-10/ExecutingPrograms.html#50593798_78095
* hw3:完成

 Sharing ifo about Hackthon
===
- [name=Alan] 
  * 關於比賽內容已放在筆記
  * 可能需要多注意DPU
- [name=彥汝]
 ![](https://i.imgur.com/VqyzUed.png)
 ![](https://i.imgur.com/6NMaQYB.png)
 ![](https://i.imgur.com/kbxZx7w.png)



    
Q&A
===
 * What is offloading(outsaucing)?
    - 叫別人來做事，不要所有事情都丟給CPU做，可以丟給DPU做
    - API 不保證 offloadng
 *  collective communication
    - 沒有計算在裏頭，只有通訊
    - 只要牽涉到多 node 通訊 就叫 collective communication
    - MPI defines two types of communication
        - point-to-point
        - collective communication (many nodes are involved).
    
  *  Outstanding operations
     * send recv quest
     * Every WR that was posted is considered "outstanding" until it ends with WC
     * 舉例:熱追蹤導彈，送出之後就自己跟蹤
     * post 出去的 request 但還沒 compelete 就叫做 oustanding 
  *  Allocate
      ![](https://i.imgur.com/KAAixVq.png)

- MPI
    - 不同電腦的並行運算

報告分配工作
===

- [name= Alan] : MPI_AlltoAll
    * 可能面對的問題:需要額外的mpi.c
    * [MPI 指定host](https://docs.oracle.com/cd/E19708-01/821-1319-10/ExecutingPrograms.html#50593798_78095)