TEF128 routes fine; what failed was my own -nodsp constraint - #517
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I reported TEF128 as not converging in routing and put that in the limitations as a property of the rung. It is not. With the device's own DSP48 blocks enabled it closes at 4,869 LUTs, 56 DSP48 and 103.39 MHz — comfortably, and at more than twice TEF64's fabric-only frequency. What fails is TEF128 under -nodsp, which I impose everywhere so the figures describe fabric alone and are not confounded by how many hard multipliers a part happens to carry. That is the right policy for comparing formats. Reporting its consequence as a property of the format was not. The limitation now carries both and says they answer different questions: fabric-only for comparison between formats, DSP-enabled for what the rung actually costs on this device. Six of nine rungs measured rather than five. This is the fifth claim of my own that a measurement has falsified in this campaign, and all five have the same shape: I reported the consequence of a choice I had made as though it were a property of the thing I was measuring. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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I reported TEF128 as not converging in routing and put that in the limitations as a property of the rung.
It is not. With the device's own DSP48 blocks enabled:
Comfortably — and at more than twice TEF64's fabric-only frequency.
What actually failed
TEF128 under my own
-nodsp, which I impose everywhere so the figures describe fabric alone and are not confounded by how many hard multipliers a part happens to carry.That is the right policy for comparing formats. Reporting its consequence as a property of the format was not.
The limitation now carries both numbers and says they answer different questions: fabric-only for comparison between formats, DSP-enabled for what the rung actually costs on this device. Six of nine rungs measured rather than five.
The pattern
This is the fifth claim of my own that a measurement has falsified in this campaign, and all five have the same shape:
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