USM Host Alloc Register#

Warning

Experimental features:

  • May be replaced, updated, or removed at any time.

  • Do not require maintaining API/ABI stability of their own additions over time.

  • Do not require conformance testing of their own additions.

Motivation#

This extension enables applications to register externally-allocated host memory (such as memory-mapped files or standard malloc allocations) with the runtime, allowing the device to access it efficiently as USM host memory without requiring data copies.

Changelog#

Revision

Changes

1.0

Initial Draft

Support#

Adapters which support this experimental feature must return true for the new :ref:`UR_DEVICE_INFO_USM_HOST_ALLOC_REGISTER_SUPPORT_EXP <ur-device-info-t>`\ device info query.

Contributors#