Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2007-08-09
2009-11-24
Vy, Hung T (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07624107
ABSTRACT:
One embodiment of the present invention sets forth a technique for efficiently performing a radix sort operation on a graphics processing unit (GPU). The radix sort operation is conducted on an input list of data using one or more passes of a series of three processing phases. In each processing phase, thread groups are each associated with one segment of input data. In the first phase, occurrences of each radix symbol are counted and stored in a list of counters. In the second phase, the list of counters is processed by a parallel prefix sum operation to generate a list of offsets. In the third phase, the list of offsets is used to perform re-ordering on the list of data, according to the current radix symbol. To maintain sort stability, the one or more passes proceed from least significant data to most significant data in the sort key.
REFERENCES:
patent: 5434995 (1995-07-01), Oberlin et al.
patent: 5721921 (1998-02-01), Kessler et al.
patent: 5924091 (1999-07-01), Burkhard
patent: 5928351 (1999-07-01), Horie et al.
patent: 6085303 (2000-07-01), Thorson et al.
patent: 6216174 (2001-04-01), Scott et al.
patent: 6519593 (2003-02-01), Matias et al.
patent: 6897871 (2005-05-01), Morein et al.
patent: 7424467 (2008-09-01), Fontoura et al.
patent: 2005/0165838 (2005-07-01), Fontoura et al.
patent: 2007/0106876 (2007-05-01), Goswami
patent: 2007/0271268 (2007-11-01), Fontoura et al.
patent: 2008/0316214 (2008-12-01), Peeper
Eggers, et al. “Simultaneous Multithreading: A Platform for Next-Generation Processors”, IEEE Micro. Sep./Oct. 1997 (vol. 17, No. 5) pp. 12-19.
Johnson, et al. “A Distributed Hardware Mechanism for Process Synchronization on Shared-Bus Multiprocessors,”1994. IEE Computer Society; ICPP '94. pp. 268-275.
Eggers, et al., “Simultaneous Multithreading: A Platform for Next-Generation Processors,”IEEE Micro, vol. 17, No. 5, pp. 12-19, Sep./Oct. 1997.
NVIDIA Corporation
Patterson & Sheridan LLP
Vy Hung T
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