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compiler: Fix performance profiling of busy-waits - #3055
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FabioLuporini wants to merge 3 commits into
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FabioLuporini
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FabioLuporini
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Oct 14, 2026
| if size == 1: | ||
| continue | ||
| if v.is_double_buffering: | ||
| # E.g., `f[time] = b[t0]` must become `b1[t0] = b[t0]` |
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actually this is a bug fix (tested both here and in PRO)
Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #3055 +/- ##
==========================================
+ Coverage 84.23% 84.32% +0.09%
==========================================
Files 258 258
Lines 57070 57151 +81
Branches 4874 4885 +11
==========================================
+ Hits 48072 48192 +120
+ Misses 8170 8133 -37
+ Partials 828 826 -2
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mloubout
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Oct 14, 2026
Select compute_100a/sm_100a in CudaCompiler for detected SM100 devices. Use explicit Blackwell as the SM100 fallback when device detection is unavailable, and preserve other detected targets. Explicit gencode avoids the generic compute_100 PTX fallback generated by -arch=sm_100a, which rejects architecture-specific instructions such as tcgen05. Target selection no longer needs a downstream pass override. Add hardware-independent coverage of native fallback, older GPUs, SM100, and other Blackwell targets.
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Reuse the first buffer's slot indices when inserting further buffering levels, including initialization outside the time loop. Preserve physical irregular-buffer slots in copy-in masks and flatten transfers using their allocated stride independently of the transferred payload size. Add a subsampled multilevel buffering regression for degrees 1, 2 and 4.
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