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
Inquiry Intrinsic Function (Specific): Returns time accounting for a program.
result = MCLOCK( )
The result type is INTEGER(4). The result is the sum (in units of milliseconds) of the current process's user time and the user and system time of all its child processes.