omp_clause¶

The omp_clause union represents OpenMP clauses that modify the behavior of an OMPRegion directive.

Declaración¶

Sintaxis¶

omp_clause
    = OMPPrivate(expr* vars)
    | OMPShared(expr* vars)
    | OMPFirstPrivate(expr* vars)
    | OMPReduction(reduction_op operator, expr* vars)
    | OMPCollapse(expr count)
    | OMPNumThreads(expr num_threads)
    | OMPSchedule(schedule_type kind, expr? chunk_size)
    | OMPNumTeams(expr num_teams)
    | OMPThreadLimit(expr thread_limit)
    | OMPMap(map_type type, expr* vars)

Argumentos¶

Clause Type	Argumentos
`OMPPrivate`	`vars`: List of variables to privatize.
`OMPShared`	`vars`: List of variables to share.
`OMPFirstPrivate`	`vars`: List of variables to first-privatize.
`OMPReduction`	`operator`: Reduction operator (e.g., ReduceAdd). `vars`: List of variables for reduction.
`OMPCollapse`	`count`: Number of loops to collapse.
`OMPNumThreads`	`num_threads`: Number of threads.
`OMPSchedule`	`kind`: Schedule type (e.g., Static). `chunk_size`: Optional chunk size expression.
`OMPNumTeams`	`num_teams`: Number of teams.
`OMPThreadLimit`	`thread_limit`: Thread limit per team.
`OMPMap`	`type`: Mapping type (e.g., ToFrom). `vars`: List of variables to map.

Valores devueltos¶

None.

Descripción¶

omp_clause defines modifiers for OpenMP regions in the Abstract Semantic Representation (ASR). Clauses control aspects like data scoping (e.g., OMPPrivate, OMPShared), reductions (OMPReduction), loop scheduling (OMPSchedule), team configuration (OMPNumTeams), and device data mapping (OMPMap). These clauses are attached to OMPRegion nodes to specify runtime behavior during execution.

More enums¶

map_type: Enumeration for mapping directions in OMPMap.
- To: Map data to device.
- From: Map data from device.
- ToFrom: Map data to and from device.
- Alloc: Allocate on device.
- Release: Release from device.
- Delete: Delete from device.
schedule_type: Enumeration for loop scheduling in OMPSchedule.
- Static: Static scheduling.
- Dynamic: Dynamic scheduling.
- Guided: Guided scheduling.
- Auto: Compiler-decided scheduling.
- Runtime: Runtime-decided scheduling.