Additional kernels & improved color reuse & multi-hop routing - #68
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luxfg wants to merge 64 commits into
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Additional kernels & improved color reuse & multi-hop routing#68luxfg wants to merge 64 commits into
luxfg wants to merge 64 commits into
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Establishes the hardware contract the shift-bundle lowering will rely on, after the per-hop SWITCH_ADV payload turned out to be inert in slots 1-7: senders hand their router over in descending send order, triggered by a wavelet they emit themselves, and statically routed receivers use a counter filter to pick out the block addressed to them. Also pins the filter arithmetic, which the manual describes ambiguously: a wavelet reaches the compute element iff counter <= max_counter, counting modulo limit1 + 1 from init_counter.
Takes the stream-bounds routing and emission layer wholesale. Its RouteConfig / ColorSwitchPlan model supersedes the private _emit_shift_schedules path this branch grew, which drove switches with a hop-indexed SWITCH_ADV payload that the hardware ignores past slot 0. The shift-bundle detector survives but is unwired for now; the tests that cover the old emitter fail until it is reconnected to ColorSwitchPlan.
luxfg
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…e at compile time
luxfg
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August 20, 2026 09:04
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Summary
Compiler and sample work to pack more communication onto fewer colors, recycle task IDs across epochs, and run new kernels on WSE-2 and WSE-3.
Routing and color reuse
detect_shift_bundles; documented inirspec/docs/spatial/routing_wse.md).FilterConfig, standalone routes) instead of a per-hop switch-advance wavelet. WSE-2 local flips use.advance_switchon the last data wavelet; WSE-3 emitsSWITCH_ADV..ut_id) independently of queues so an input and an output of the same number can run together.Task IDs
@get_data_task_idtakes the fabin input queue, not a color. Program queues are 2–7 (memcpy owns 0 and 1). Local-task allocation skips memcpy-reserved IDs, including WSE-3’s color-21LOCAL_MEMCPYD2H_DATAhole.Samples
samples/spatial/blas/spmv.sptl).Kkeys per PE andRindependent rows (samples/spatial/sort/).odd_even_sort_1D_looped.sptl).shearsort_2D_looped.sptl, WSE-3; four inbound colours in one epoch).samples/spatial/simple/).