[Examples] [Xe] Improve performance for some upconversion cases in xe_gemm #605
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tdeng5
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Nov 4, 2025
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@petercad Can you quote the observed performance improvement as well? |
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Here are some improved cases (BMG 160EU @ 2.85GHz, m = 2560, n = k = 4096):
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Antonyvance
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Nov 5, 2025
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Using smaller B loads reduces the amount of upconversion/reorder work, which can improve performance when that is expensive.
This PR updates the xe_gemm example to illustrate this, using 64x32 subgroup tiles instead of 32x64 subgroup tiles for such cases.