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Cycle 38

25.08.2026 → builds until 21.09.2026 → cool-down ends 05.10.2026

Nothing to save
25.08.2026
22.09.2026
Builds until
21.09.2026 · 4 working weeks
Cool-down ends
05.10.2026 — assumed: the next cycle's betting table is what ends it, and there is no record after this one

Who is in this cycle

Availability is a fraction of the 4 working weeks this cycle builds for. Only the people named here are in the cycle.

personavailablecapacitybetload scheduled until
DropD 100% 4.0 wk4.0 wk 28.09.2026
edopao 50% 2.0 wk1.6 wk 26.08.2026
havogt 100% 4.0 wk1.6 wk 26.08.2026
iomaganaris 50% 2.0 wk7.6 wk 18.11.2026
jcanton 50% 2.0 wk1.0 wk 01.10.2026
kotsaloscv 50% 2.0 wk3.0 wk 14.09.2026
msimberg 50% 2.0 wk3.0 wk 01.10.2026
muellch 50% 2.0 wk4.1 wk 09.10.2026
nfarabullini 50% 2.0 wk1.6 wk 26.08.2026
OngChia 100% 4.0 wk2.0 wk 23.09.2026
yiluchen1066 100% 4.0 wk4.0 wk 07.10.2026

added here, saved with the setup

Over capacity: iomaganaris, kotsaloscv, msimberg, muellch. The room can still bet it — this is a number, not a refusal.

Delivered

What ended inside this cycle's window, by the date on the record. It is not in the weeks above: those are what people's next weeks hold, and finished work is nobody's next week.

titlebetended
NVIDIA + AMD kernel optimization1.0 wk26.08.2026 · 2.3 wk past cycle 37
Shared Config parameters1.0 wk31.08.2026
Design State and Component3.0 wk18.09.2026
muphys -> icon0.5 wk19.09.2026

Goal

The bet

Everything ready or in progress, with the tasks each one is made of underneath it. Ticking one stamps it with cycle 38; an item already in progress from an earlier cycle keeps the cycle it was bet in, so its overrun keeps counting. A task has no tick of its own — it is part of the bet above it — and its appetite is typed here because this is where what the bet has to hold is argued about.

in 38
Distributed driver run Pitch 38
Optimize the standalone-driver startup time on GPU Task 38
Clean up muphys tests Task —
Distributed standalone driver benchmarks on bencher Pitch 38
Plug in turbulence - TMX Pitch 37
Review tmx port Task
Integrate tmx into phys driver Task
AMD MI300A kernel optimization Pitch 38
Self-documenting Config Pitch 38
NWP Turbulence granule Python port Pitch 38
Driver config and CLI cleanup Pitch 38
Single precision dycore Pitch —
Refactor IC and topography Pitch —
Physics Driver refactor Pitch 38
Async distributed output Pitch 38
Audit ICON4Py programs with new GT4Py features Pitch 38
Port remaining horizontal tracer advection schemes Pitch 38
State and Component Pitch 38
Prototype implementation Task
Simplified land Task —
Gridlook export Task 38

Notes