SYNC ALL statement

Standard: F77 F90 F95 F2003 F2008 F2018 Example program

＜Syntax＞

SYNC ALL [ ( [ sync-stat-list ] ) ]
sync-stat-list ::= sync-stat [ , sync-stat ]
sync-stat ::= STAT = stat-variable | ERRMSG = errmsg-variable

A stat-variable must be a non-coindexed scalar Integer variable, and should be able to represent values from −9999 to +9999. An errmsg-variable must be a non-coindexed scalar Character variable with default kind.

＜Semantics＞

In multiple image execution of a coarray program, execution of a SYNC ALL statement synchronises with corresponding SYNC ALL statement executions on other images in the current team; the segment following the n^th execution of a SYNC ALL statement on one image follows all the segments that preceded the n^th execution of a SYNC ALL statement on every other image in the current team.

If the STAT= clause is present, zero is assigned to the stat-variable if no error occurs, and a positive value if an error occurs. If the ERRMSG= clause is present and an error occurs, the errmsg-variable is assigned an explanatory message; it remains unchanged if no error occurs.