Term
| What execution units are associated with Execution Port 0 |
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Definition
ALU 0 (ADD, LOGIC, BRANCH)
FP Mov (FP MOVES, FXCH) |
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Term
| What execution units are associated with Execution Port 1 |
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Definition
ALU 1(ADD)
INT(SHIFT, ROTATE)
FP EXE |
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Term
| What execution units are associated with Execution Port 2 |
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Definition
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Term
| What execution units are associated with Execution Port 4 |
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Definition
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Term
| What are some micro optimizations for the execution stage? |
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Definition
Well-Blended Execution Types
Low Cache Misses
Hyper-Threading
Low Data Dependencies |
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Term
| What is the different between parallel and serial execution? |
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Definition
| Serial execution uses a single variable, while parallel execution uses multiple variables (Loop Unrolling) |
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Term
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Definition
Updates Machine State
Notifies Missed Branch
Stores Memory
Issues Exceptions
Removes Micro-Ops |
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Term
| What does the Application Stage do? |
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Definition
Creates World/Object Space Triangles
Stores Tris/Indicies in non-local video memory
Drivers
Sends commands to GPU
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Term
| What does the Vertex Processing Stage do? |
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Definition
Fetches verts from Video Memory
Runs vertex Shader
Vertex Shaders support instruction level parallelism |
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Term
| What does the Rasterization Stage do? |
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Definition
Interpolates Vertex Attributes
Shades Pixels
Resolves Pixels |
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Term
| What is the optimization process? |
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Definition
1) Benchmark
2) Detection(measure/analyze)
3) Fix Problem
4) Repeat |
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