 Yuval Tassa
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a2d0e33c0f
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2-3x speedup of sparse matrix squaring.
Split symbolic and numeric phases for sparse `M'*diag*M` computation. Microseconds per call for the monolithic vs the split approach for the 100_humanoids and 2humanoid100 models:
```
+-------+------+----------+------------+---------+
| Model | Arch | Col (µs) | Split (µs) | Speedup |
+-------+------+----------+------------+---------+
| 2H100 | x86 | 238.3 | 74.5 | 3.2x |
+-------+------+----------+------------+---------+
| | ARM | 111.6 | 53.2 | 2.1x |
+-------+------+----------+------------+---------+
| 100H | x86 | 1325.3 | 656.2 | 2.0x |
+-------+------+----------+------------+---------+
| | ARM | 594.8 | 306.6 | 1.9x |
+-------+------+----------+------------+---------+
```
PiperOrigin-RevId: 900154308
Change-Id: Ia6e9b8e196e2ed37b723a0faf60e9731303a9619
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2026-04-15 07:19:41 -07:00 |
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