hysop.core.memory.allocator module

class hysop.core.memory.allocator.AllocatorBase(verbose, **kwds)

Bases: TaggedObject

Base class for allocators.

Initialize a TaggedObject with a tag prefix/postfix/formatter, all optional.

__call__(size, alignment=None)

Allocate nbytes aligned on min_alignment. If the first allocation fails, call the garbage collector and try again. It this fails a second time, raise a MemoryError.

abstract allocate(nbytes, verbose=True)

Allocate nbytes bytes of memory. No minimal memory alignment is guaranteed. If allocation fails, this method has to raise a MemoryError.

allocate_aligned(size, alignment)

Allocate size bytes aligned on alignment.

free(buf)

Release the allocated buffer.

is_deferred = False

abstract is_on_host()

Return true if buffers are allocated in host memory.

abstract max_alloc_size()

Max allocatable size in bytes.

abstract prefix()

Prefix for logs

try_release_blocks()

Try to release memory blocks by calling the garbage collector.