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 load fence instruction that ensures completion of preceding load instructions.
USE IFCORE
CALL FOR_LFENCE ()
Using this subroutine guarantees that in program order, every load instruction that precedes the load fence instruction is globally visible before any load instruction that follows the load fence.