SUPPORT FOR APPLICATION TRANSPARENT, HIGH AVAILABLE GPU COMPUTING WITH VM CHECKPOINTING

Title:

SUPPORT FOR APPLICATION TRANSPARENT, HIGH AVAILABLE GPU COMPUTING WITH VM CHECKPOINTING

Document Type and Number:

WIPO Patent Application WO/2016/082073

Kind Code:

A1

Abstract:

Methods, software, and apparatus for application transparent, high available GPU computing with VM checkpointing. The guest access of certain GPU resources, such as MMIO resources, are trapped to keep a copy of guest context per semantics, and/or emulate the guest access of the resources prior to submission to the GPU, while other commands relating to certain graphics memory address regions are trapped before being passed through to the GPU. The trapped commands are scanned before submission to predict: a) potential to-be-dirtied graphics memory pages, and b) the execution time of intercepted commands, so the next checkpointing can be aligned to a predicted execution time. The GPU internal states are drained by flushing internal context/tlb/cache, at the completion of submitted commands, and then a snapshot of the vGPU state is taken, based on tracked GPU state, GPU context (through GPU-specific commands), detected dirty graphics memory pages and predicted to-be dirtied graphics memory pages.

Inventors:

DONG YAOZU (CN)
TIAN KUN (CN)

Application Number:

PCT/CN2014/092028

Publication Date:

June 02, 2016

Filing Date:

November 24, 2014

Export Citation:

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Assignee:

INTEL CORP (US)
DONG YAOZU (CN)
TIAN KUN (CN)

International Classes:

G06F9/445

Foreign References:

US20080155169A1	2008-06-26
US20110134111A1	2011-06-09

Other References: