Enum kn_cuda_sys::bindings::CUstreamWaitValue_flags_enum

#[non_exhaustive]
#[repr(u32)]
pub enum CUstreamWaitValue_flags_enum {
    CU_STREAM_WAIT_VALUE_GEQ = 0,
    CU_STREAM_WAIT_VALUE_EQ = 1,
    CU_STREAM_WAIT_VALUE_AND = 2,
    CU_STREAM_WAIT_VALUE_NOR = 3,
    CU_STREAM_WAIT_VALUE_FLUSH = 1_073_741_824,
}

Flags for ::cuStreamWaitValue32 and ::cuStreamWaitValue64

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

CU_STREAM_WAIT_VALUE_GEQ = 0

< Wait until (int32_t)(*addr - value) >= 0 (or int64_t for 64 bit values). Note this is a cyclic comparison which ignores wraparound. (Default behavior.)

CU_STREAM_WAIT_VALUE_EQ = 1

< Wait until *addr == value.

CU_STREAM_WAIT_VALUE_AND = 2

< Wait until (*addr & value) != 0.

CU_STREAM_WAIT_VALUE_NOR = 3

< Wait until ~(*addr | value) != 0. Support for this operation can be queried with ::cuDeviceGetAttribute() and ::CU_DEVICE_ATTRIBUTE_CAN_USE_STREAM_WAIT_VALUE_NOR.

CU_STREAM_WAIT_VALUE_FLUSH = 1_073_741_824

< Follow the wait operation with a flush of outstanding remote writes. This means that, if a remote write operation is guaranteed to have reached the device before the wait can be satisfied, that write is guaranteed to be visible to downstream device work. The device is permitted to reorder remote writes internally. For example, this flag would be required if two remote writes arrive in a defined order, the wait is satisfied by the second write, and downstream work needs to observe the first write. Support for this operation is restricted to selected platforms and can be queried with ::CU_DEVICE_ATTRIBUTE_CAN_FLUSH_REMOTE_WRITES.

Trait Implementations

impl Clone for CUstreamWaitValue_flags_enum

fn clone(&self) -> CUstreamWaitValue_flags_enum

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CUstreamWaitValue_flags_enum

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for CUstreamWaitValue_flags_enum

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CUstreamWaitValue_flags_enum

fn eq(&self, other: &CUstreamWaitValue_flags_enum) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for CUstreamWaitValue_flags_enum

impl Eq for CUstreamWaitValue_flags_enum

impl StructuralEq for CUstreamWaitValue_flags_enum

impl StructuralPartialEq for CUstreamWaitValue_flags_enum