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
Specifies a reduction among tasks. The TASK_REDUCTION clause is a reduction scoping clause.
TASK_REDUCTION (reduction-identifier : list)
Arguments reduction-identifier and list are defined in REDUCTION clause. All the common restrictions for the REDUCTION clause apply to this clause.