インテル® Fortran コンパイラー 19.0 デベロッパー・ガイドおよびリファレンス
Run-Time Subroutine: Inserts a memory store fence instruction that ensures completion of preceding store instructions.
USE IFCORE
CALL FOR_SFENCE ()
Using this subroutine guarantees that in program order, every store instruction that precedes the store fence instruction is globally visible before any store instruction that follows the store fence.