发明授权
- 专利标题: In-place memory copy during remote data transfer in heterogeneous compute environment
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申请号: US17876936申请日: 2022-07-29
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公开(公告)号: US11947801B2公开(公告)日: 2024-04-02
- 发明人: Reshma Lal , Sarbartha Banerjee
- 申请人: Intel Corporation
- 申请人地址: US CA Santa Clara
- 专利权人: INTEL CORPORATION
- 当前专利权人: INTEL CORPORATION
- 当前专利权人地址: US CA Santa Clara
- 代理机构: JEFFERY WATSON MENDONSA & HAMILTON LLP
- 主分类号: G06F12/1009
- IPC分类号: G06F12/1009 ; G06F3/06 ; G06F12/14
摘要:
An apparatus to facilitate in-place memory copy during remote data transfer in a heterogeneous compute environment is disclosed. The apparatus includes a processor to receive data via a network interface card (NIC) of a hardware accelerator device; identify a destination address of memory of the hardware accelerator device to write the data; determine that access control bits of the destination address in page tables maintained by a memory management unit (MMU) indicate that memory pages of the destination address are both registered and free; write the data to the memory pages of the destination address; and update the access control bits for memory pages of the destination address to indicate that the memory pages are restricted, wherein setting the access control bits to restricted prevents the NIC and a compute kernel of the hardware accelerator device from accessing the memory pages.
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