Target Parallel Worksharing-Loop SIMD Construct

| OPENMP API Specification: Version 5.1 November 2020

2.16.18 Target Parallel Worksharing-Loop SIMD Construct

Summary The target parallel worksharing-loop SIMD construct is a shortcut for specifying a target construct containing a parallel worksharing-loop SIMD construct and no other statements.

Syntax

The syntax of the target parallel worksharing-loop SIMD construct is as follows:

 
#pragma omp target parallel for simd \ 
            [clause[[,] clause] ... ] new-line 
    loop-nest

where loop-nest is a canonical loop nest and clause can be any of the clauses accepted by the target or parallel for simd directives, except for copyin, with identical meanings and restrictions.

The syntax of the target parallel worksharing-loop SIMD construct is as follows:

 
!$omp target parallel do simd [clause[ [,] clause] ... ] 
    loop-nest 
[!$omp end target parallel do simd]

where loop-nest is a canonical loop nest and clause can be any of the clauses accepted by the target or parallel do simd directives, except for copyin, with identical meanings and restrictions.

If an end target parallel do simd directive is not specified, an end targetparallel do simd directive is assumed at the end of the loop-nest.

Description The semantics are identical to explicitly specifying a target directive immediately followed by a parallel worksharing-loop SIMD directive.

Restrictions The restrictions for the target and parallel worksharing-loop SIMD constructs apply except for the following explicit modifications:

If any if clause on the directive includes a directive-name-modifier then all if clauses on the directive must include a directive-name-modifier.
At most one if clause without a directive-name-modifier can appear on the directive.
At most one if clause with the parallel directive-name-modifier can appear on the directive.
At most one if clause with the target directive-name-modifier can appear on the directive.
At most one if clause with the simd directive-name-modifier can appear on the directive.

Cross References

Canonical loop nest form, see Section 2.11.1.
target construct, see Section 2.14.5.
Parallel worksharing-loop SIMD construct, see Section 2.16.5.
if clause, see Section 2.18.
Data attribute clauses, see Section 2.21.4.
copyin clause, see Section 2.21.6.1.

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