Electrical computers and digital processing systems: multicomput – Computer-to-computer data addressing
Reexamination Certificate
2004-12-20
2008-09-30
Maung, Zarni (Department: 2151)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data addressing
C709S214000
Reexamination Certificate
active
07430615
ABSTRACT:
In remote direct memory access (RDMA) transfers in a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, there is a need for the system to ensure efficient memory protection mechanisms across jobs. A method is thus desired for addressing virtual memory on local and remote servers that is independent of the process ID on the local and/or remote node. The use of global Translation Control Entry (TCE) tables that are accessed/owned by RDMA jobs and are managed by a device driver in conjunction with a Protocol Virtual Offset (PVO) address format solves this problem.
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Blackmore Robert S.
Chaudhary Piyush
Goscinski Jason E.
Helmer, Jr. Leonard W.
Houston John S.
Biela, Esq. Joseph
Cutter, Esq. Lawrence D.
Heslin Rothenberg Farley & & Mesiti P.C.
International Business Machines - Corporation
Maung Zarni
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