embedded3 R6-2 step 2: the device ub/impose default ON (RTX_E3_UB_DEVICE=0 restores the host) — its two-period 3D gate held; merged-tree gate: slab ny 62 default / BAND_CHECK / RTX_E3_GEOM_DEVICE=0 all byte-identical to main's base, 0 differs over 2,349 geometry+mask+table and 1,174 ub+impose checks; device suites 2/2, 3/3

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-09-25 02:56:28 -05:00
parent 1bfa0e4334
commit c860783c81
1 changed files with 5 additions and 3 deletions
@@ -163,10 +163,12 @@ fn upload_pairs(v: &[[f64; 2]]) -> CudaSlice<f64> {
        .expect("upload pairs")
 }

-/// R6-2 step 2 (`RTX_E3_UB_DEVICE=1`, default off): the band's surface
-/// velocity at the foot and the end-of-rebuild imposition on the device.
+/// R6-2 step 2: the band's surface velocity at the foot and the
+/// end-of-rebuild imposition on the device — default ON since its
+/// two-period 3D gate held (2026-09-25); `RTX_E3_UB_DEVICE=0` restores the
+/// host. Bodies without a device velocity fall back to the host.
 pub(crate) fn ub_device_enabled() -> bool {
-    std::env::var("RTX_E3_UB_DEVICE").is_ok_and(|v| v == "1")
+    !std::env::var("RTX_E3_UB_DEVICE").is_ok_and(|v| v == "0")
 }

 /// R6-2 step 2: the body's surface velocity in the device's form at one