Module flex 

Bernoulli marginal-slope FLEX GPU policy and backend probe.

Structs

BmsFlexGpuBackend

Process-wide BMS-flex GPU backend. Lazy-initialised on first call to BmsFlexGpuBackend::probe.

Functions

require_row_primary_hessian_supported

Same as row_primary_hessian_decision but turns gpu=force-without-support into an Err string at the call site.

row_primary_hessian_decision

Decide whether the GPU row-primary Hessian path is eligible for this fit’s (n, r). Always-use_gpu=false for r == 0 (no flex jets to process) and below the runtime row-kernel threshold.