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

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Alice 2023-10-04 12:23:31 +01:00
parent 6f6741a669
commit 47bd74f5ee
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---
dg-publish: true
---
4 de Outubro 2023 - #CP
## Ex. 2
@ -50,5 +53,29 @@ Ganhos de 4 vezes mais.
## Ex. 3
#### a)
2 operações em FP
#### a) Peak Performance
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 | |

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---
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"}}
```
%%