Longer sequences exercise more state updates, different boundaries and sometimes different kernel paths. Use a two-tile example to check online softmax, then test masking, indexing and precision against a stable reference.
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Longer sequences exercise more state updates, different boundaries and sometimes different kernel paths. Use a two-tile example to check online softmax, then test masking, indexing and precision against a stable reference.
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Change the assumptions in a free calculator, then explain what the result establishes and what still needs measurement.
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Treat length-dependent drift as a clue, not a unique diagnosis. Derive the rescaling of both softmax accumulators, test tile and mask boundaries, and distinguish an algorithm reference from validation of the actual GPU kernel.
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