:orphan:
# PetscDeviceContextJoinMode
Describes the type of join operation to perform in `PetscDeviceContextJoin()` 
## Synopsis
```
#include <petscdevicetypes.h> 
typedef enum {
  PETSC_DEVICE_CONTEXT_JOIN_DESTROY,
  PETSC_DEVICE_CONTEXT_JOIN_SYNC,
  PETSC_DEVICE_CONTEXT_JOIN_NO_SYNC
} PetscDeviceContextJoinMode;
```

## Values

- ***`PETSC_DEVICE_CONTEXT_JOIN_DESTROY` -*** Destroy all incoming sub-contexts after join.
- ***`PETSC_DEVICE_CONTEXT_JOIN_SYNC`    -*** Synchronize incoming sub-contexts after join.
- ***`PETSC_DEVICE_CONTEXT_JOIN_NO_SYNC` -*** Do not synchronize incoming sub-contexts after join.





## See Also
 `PetscDeviceContext`, `PetscDeviceContextFork()`, `PetscDeviceContextJoin()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscdevicetypes.h.html#PetscDeviceContextJoinMode">include/petscdevicetypes.h</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petscdevicetypes.h)


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