Struct ManagedMemAlloc 

pub struct ManagedMemAlloc;

Allocate managed memory on AMD that lives on the CPU and is visible to the GPU as well.

On GPUs that support it (mostly MI cards), managed memory can be automatically transferred between CPU and GPU. See the unified memory management documentation.

With the amd-allocator crate feature (enabled by default), this is the default allocator.

Trait Implementations

impl GlobalAlloc for ManagedMemAlloc

Available on crate feature amd and neither AMD GPU nor NVidia GPU only.

unsafe fn alloc(&self, layout: Layout) -> *mut u8

Allocates memory as described by the given layout.

unsafe fn dealloc(&self, ptr: *mut u8, _: Layout)

Deallocates the block of memory at the given ptr pointer with the given layout.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize, ) -> *mut u8

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.