GCN: '--param=gcn-preferred-vector-lane-width=[default,32,64]' (was: [committed] amdgcn: Prefer V32 on RDNA devices)

Hi! On 2024-03-28T08:00:50+0100, I wrote: > On 2024-03-22T15:54:48+, Andrew Stubbs wrote: >> This patch alters the default (preferred) vector size to 32 on RDNA devices >> to >> better match the actual hardware. 64-lane vectors will continue to be >> used where they are hard-coded (such as

Re: [committed] amdgcn: Prefer V32 on RDNA devices

Hi Andrew! On 2024-03-22T15:54:48+, Andrew Stubbs wrote: > This patch alters the default (preferred) vector size to 32 on RDNA devices to > better match the actual hardware. 64-lane vectors will continue to be > used where they are hard-coded (such as function prologues). > > We run these

[committed] amdgcn: Prefer V32 on RDNA devices

This patch alters the default (preferred) vector size to 32 on RDNA devices to better match the actual hardware. 64-lane vectors will continue to be used where they are hard-coded (such as function prologues). We run these devices in wavefrontsize64 for compatibility, but they actually only have