# Portable SIMD 2021-04-12 Meeting ###### tags: `Portable SIMD` `Minutes` [Last Meeting] | [This Meeting's Chat] | [Next Meeting] [Last Meeting]: https://hackmd.io/t3zBrB9bQLGkpbL1twBHlw [This Meeting's Chat]: https://rust-lang.zulipchat.com/#narrow/stream/257879-project-portable-simd/topic/Meeting.202021-04-12/near/234220376 [Next Meeting]: https://hackmd.io/bk7HHiZeSaC7r1tnwFtZhA ## Agenda 0. PR https://github.com/rust-lang/stdsimd/pull/83 1. PR https://github.com/rust-lang/stdsimd/pull/89 2. What should our approach to Wasm SIMD be? 3. Meet on biweekly basis instead? 4. What about aarch64 codegen? 5. BIKESHED TIME: LanesAtMostWhat? ## Resolution - on Wasm: try to disable the tests that are causing errors specifically, otherwise shrug and ignore the wasm target entirely - On meeting scheduling: Yes, biweekly or perhaps reschedule - On aarch64: This should be treated as blocking stable until we understand why. - On the limiter trait: We don't want to go below 32 lanes. We **very** much don't want to go below 16 lanes. - What use is a single lane anyways?