Block 5117
( per-isa-doe.4th - per-ISA DoE driver. FABRIC-3 SXXXIV.4/     )
( SXXXV.5/.7: 6-cell factorial from multiuser-doe.4th's own    )
( MU-EXEC-CAMPAIGN, unchanged. Seed/reps are VARIABLEs, not    )
( CONSTANTs -- settable before a run. Default N=3 reps/cell=   )
( 18 trials/ISA (ratified 2026-09-17). Load multiuser-doe.4th  )
( FIRST.                                                       )
VARIABLE AMD64-SEED   20260917 AMD64-SEED !
VARIABLE AARCH64-SEED 20260918 AARCH64-SEED !
VARIABLE RISCV64-SEED 20260919 RISCV64-SEED !
VARIABLE PER-ISA-NREPS 3 PER-ISA-NREPS !

Block 5119
( DOE -- common entry point, seed reps isa-addr isa-u --.      )
( Tags, checks resume count, runs the campaign. Any experiment )
( goes through this one word -- run ONE per boot (one QEMU at  )
( a time). See FABRIC-3.md SXXXV.12 for why MU-EMIT-TRIAL-     )
( MARKER can't just be redefined instead.                      )
: DOE ( seed reps isa-addr isa-u -- )
  2DUP MU-ISA-TAG!
  DOE-RESUME-COUNT MU-EXEC-CAMPAIGN ;
: RUN-AMD64-CAMPAIGN ( -- )
  AMD64-SEED @ PER-ISA-NREPS @ S" amd64" DOE ;
: RUN-AARCH64-CAMPAIGN ( -- )
  AARCH64-SEED @ PER-ISA-NREPS @ S" aarch64" DOE ;
: RUN-RISCV64-CAMPAIGN ( -- )
  RISCV64-SEED @ PER-ISA-NREPS @ S" riscv64" DOE ;