vault backup: 2023-10-04 12:23:31

.obsidian/workspace.json

@@ -160,9 +160,10 @@
   },
   "active": "37b14566e757368b",
   "lastOpenFiles": [
+    "Excalidraw/Drawing 2023-10-04 12.19.18.excalidraw.md",
+    "4a1s/CP/PL - Aula 4.md",
     "Images/Pasted image 20231004115725.png",
     "Images/Pasted image 20231004115135.png",
-    "4a1s/CP/PL - Aula 4.md",
     "Images/Pasted image 20231004115209.png",
     "Images",
     "4a1s/CP/PL - Aula 3.md",

4a1s/CP/PL - Aula 4.md

@@ -1,3 +1,6 @@
+---
+dg-publish: true
+---
 4 de Outubro 2023 - #CP 
 
 ## Ex. 2
@@ -50,5 +53,29 @@ Ganhos de 4 vezes mais.
 
 
 ## Ex. 3
-#### a)
+#### a) Peak Performance
-2 operações em FP
+2 operações em FP
+4 elementos de cada vez em cada ciclo
+2.5 GHz -> 2.5 billion cycles per second
+
+conclusion: 20 GFlop/s
+
+#### b)
+peak with vectorization: 20 GFlop/s
+peak without vectorization: 5 GFlop/s
+memory bandwith limitation: 20 GFlop/s
+real achievable performance:
+measured performance:
+
+#### c)
+memory bandwith limitation
+
+| GFlop/s | Flop/Byte |
+| ------- | --------- |
+| 0.125   |           |
+| 0.25    |           |
+| 0.5     | 10        |
+| 1       | 20        |
+| 2       |           |
+| 4       |           |
+| 8        |           |

Excalidraw/Drawing 2023-10-04 12.19.18.excalidraw.md

@@ -0,0 +1,15 @@
+---
+
+excalidraw-plugin: parsed
+tags: [excalidraw]
+
+---
+==⚠  Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document. ⚠==
+
+
+%%
+# Drawing
+```json
+{"type":"excalidraw","version":2,"source":"https://github.com/zsviczian/obsidian-excalidraw-plugin/releases/tag/1.9.19","elements":[],"appState":{"gridSize":null,"viewBackgroundColor":"#ffffff"}}
+```
+%%