Struct uct_md_mem_attr

#[repr(C)]
pub struct uct_md_mem_attr {
    pub field_mask: u64,
    pub mem_type: ucs_memory_type_t,
    pub sys_dev: ucs_sys_device_t,
    pub base_address: *mut c_void,
    pub alloc_length: size_t,
}

@ingroup UCT_MD @brief Memory domain attributes.

This structure defines the attributes of a memory pointer which may include the memory type of the pointer, and the system device that backs the pointer depending on the bit fields populated in field_mask.

Fields

field_mask: u64

Mask of valid fields in this structure, using bits from @ref uct_md_mem_attr_field_t.

mem_type: ucs_memory_type_t

The type of memory. E.g. CPU/GPU memory or some other valid type. If the md does not support sys_dev query, then UCS_MEMORY_TYPE_UNKNOWN is returned.

sys_dev: ucs_sys_device_t

Index of the system device on which the buffer resides. eg: NUMA/GPU If the md does not support sys_dev query, then UCS_SYS_DEVICE_ID_UNKNOWN is returned.

base_address: *mut c_void

Base address of the allocation to which the provided buffer belongs to. If the md not support base address query, then the pointer passed to uct_md_mem_query is returned as is.

alloc_length: size_t

Length of the whole allocation to which the provided buffer belongs to. If the md not support querying allocation length, then the length passed to uct_md_mem_query is returned as is.

Trait Implementations

impl Clone for uct_md_mem_attr

fn clone(&self) -> uct_md_mem_attr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for uct_md_mem_attr

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

Formats the value using the given formatter.

impl Copy for uct_md_mem_attr