Wk 10 : GPU's

Question 1

What did gaming need from GPU’s

Answer 1

Lots of matrix, vector mult’s

Question 2

What’s the biggest challenge that using GPU’s creates?

Answer 2

Lots of data streams to/from memory

Question 3

Explain GPU’s in as few words as possible

Answer 3

GPU’s does the same instructions on multiple different sets of data. Each of the thousands of GPU’s have their own ctrl, own cache, all execute same instructions on diff data

Question 4

How do GPU’s connect to main processor?

Answer 4

Via IO bridge

Question 5

What does GPU memory look like?

Answer 5

Each MP has it’s own share memory

Question 6

What are two main GPU components?

Answer 6

Global Memory

Streaming Multiprocessors

Question 7

What are 4 GPU types

Answer 7

Tesla, Fermi, Kepler, Maxwell

Question 8

What is the 3-step GPU process?

Answer 8

1) Copy input CPU -> GPU
2) Load GPU program + Execute on Chip for performance
3) Copy GPU Mem to CPU mem

Question 9

How do all MP access memory in GPU

Answer 9

its controlled and unless there’s conflict, any can access at any time