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vidyasagar-amd merged 3 commits into from
Oct 16, 2025
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docs: add quant mode comparison to readme #3032

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docs: add quant mode comparison to readme
AviralGoelAMD Oct 15, 2025
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Update example/ck_tile/38_block_scale_gemm/README.md
AviralGoelAMD Oct 15, 2025
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Merge branch 'develop' into aviralgoel/block_scale_qaunt_readme
AviralGoelAMD Oct 15, 2025
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9 changes: 9 additions & 0 deletions example/ck_tile/38_block_scale_gemm/README.md
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Expand Up @@ -7,6 +7,15 @@ This folder contains examples of quant GEMMs using the ck_tile tile-programming
- Row and Column-wise scaled: All of the rowwise elements in A Matrix and columwise elements in B Matrix will share the same quantization element and the elementwisde operation will complete in epilogue.
- Tensor-wise scaled: Share the same scalar scale across the whole tensor of A or B
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## Quantization Mode Comparison

| Quant Mode | A Matrix Organization | A Scale Shape | B Matrix Organization | B Scale Shape |
|------------|----------------------|---------------|----------------------|---------------|
| **AQuant** | Blocks along K dimension<br/>Each M×GroupSize block shares one scale | `[M, K/GroupSize]` | Not quantized | N/A |
| **BQuant** | Not quantized | N/A | Blocks along K dimension<br/>Each GroupSize×N block shares one scale | `[K/GroupSize, N]` |
| **RowColQuant** | Per-row quantization<br/>All K elements in each row share one scale | `[M, 1]` | Per-column quantization<br/>All K elements in each column share one scale | `[1, N]` |
| **TensorQuant** | Tensor-wise quantization<br/>All M×K elements share one scale | `[1]` | Tensor-wise quantization<br/>All K×N elements share one scale | `[1]` |

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## Features
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