methodology

Spread Does Not Detect an Inert Parameter

A hand-written GEMM that looked twice as fast as the vendor library, and a no-speculation control arm that was quietly speculating — both produced clean, tight, repeatable numbers. The bug was never the math. It was a parameter that was set and never took effect.

• benchmarking
• RDNA3
• hipBLASLt
• methodology
• speculative decoding