Quiz · 5 questions
🔬 BLAS Deep Dive — What Vendors Actually Do
Five tuning pillars, Nsight Compute, Apple Instruments, modern GEMM tiling
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Quiz
01What is 'occupancy' in GPU profiling?
Hint
It's about warp scheduling on an SM, not memory.
02What does high F32 Utilization (93.9%) indicate?
Hint
High utilization = busy hardware = good.
03What is Split-K in GEMM?
Hint
The K dimension is the 'shared' inner dimension between A and B.
04What is epilogue fusion?
Hint
What happens after the matmul in a typical Linear layer?
05When profiling a custom kernel vs vendor BLAS, what's the most telling pair of metrics?
Hint
What did the table in lesson 3 actually show?
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