Electrical computers and digital processing systems: multicomput – Multicomputer data transferring via shared memory – Accessing another computer's memory
Patent
1997-12-23
1999-11-23
Shin, Christopher B.
Electrical computers and digital processing systems: multicomput
Multicomputer data transferring via shared memory
Accessing another computer's memory
G06F 1300
Patent
active
059917970
ABSTRACT:
A first host system directs an I/O device to transfer data directly between a requesting application program's buffers on a second host system and an I/O unit coupled to the I/O device without the need to pass through the first host system. Since the first host system retains control of the I/O request, it maintains security and protection features at the same time as realizing increases in performance gained from not having to participate in the actual data transfer. This direct movement capability supports peer-to-peer operation where a number of different I/O units, each with its own physical memory addressing domain, require access to the same I/O device. The direct movement capability is also useful in clustered systems. Clustered host systems are allowed direct access to an I/O device for data transfer without intervention by the host system owning the I/O device.
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patent: 5568402 (1996-10-01), Gray et al.
patent: 5644712 (1997-07-01), Coscarella
patent: 5655146 (1997-08-01), Baum et al.
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Futral William T.
Regnier Greg J.
Intel Corporation
Shin Christopher B.
Skabrat Steven P.
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