PETSc version 3.17.0
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# PetscDeviceInitType

Initialization strategy for PetscDevice

### Synopsis

    #include petscsys.h
    typedef enum {
      PETSC_DEVICE_INIT_NONE,
      PETSC_DEVICE_INIT_LAZY,
      PETSC_DEVICE_INIT_EAGER
    } PetscDeviceInitType;

    PETSC_DEVICE_INIT_NONE  - PetscDevice is never initialized

    PETSC_DEVICE_INIT_LAZY  - PetscDevice is initialized on demand

    PETSC_DEVICE_INIT_EAGER - PetscDevice is initialized as soon as possible

### Notes

PETSC_DEVICE_INIT_NONE implies that any initialization of PetscDevice is disallowed and doing so results in an error. Useful to ensure that no accelerator is used in a program.

### See Also

PetscDevice, PetscDeviceType, PetscDeviceInitialize(), PetscDeviceInitialized(), PetscDeviceCreate()

### Level

beginner

### Location

include/petscdevicetypes.h
Index of all Sys routines
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