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Big data transposition method based on C6678 platform

A big data and platform technology, applied in electrical digital data processing, digital data processing components, processing data according to predetermined rules, etc. The effect of avoiding the low efficiency of single-point reading of DDR jumps and improving the efficiency of data transfer

Inactive Publication Date: 2019-02-01
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Description
  • Claims
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Problems solved by technology

However, limited by the linear storage constraints of large data storage devices, the performance of traditional transposition reading and writing of massive data will decrease rapidly with the increase of matrix operations, and sometimes the transposition time even takes up 70% of the entire signal processing time. , has become a fatal shortcoming restricting the development of radar real-time signal processing
[0003] In order to solve the problem of extremely low efficiency of single-address jump reading and writing in traditional matrix transposition operation, this paper proposes a high-speed transposition method in combination with TI's latest signal processing chip TMS30C6678DSP processing chip

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  • Big data transposition method based on C6678 platform
  • Big data transposition method based on C6678 platform
  • Big data transposition method based on C6678 platform

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Embodiment Construction

[0030] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0031] The big data transposition method based on the C6678 platform can be realized only by making full use of the on-chip and off-chip memories of the C6678, as well as the high-speed signal processing function of the C6678, which fully reflects the high throughput performance of the C6678.

[0032] in accordance with figure 1 The flow chart shows that the specific implementation steps are as follows:

[0033] 1. System initialization, set the detailed parameters of the block transposition: the number of blocks, the column size of the block matrix, and the row size of the block matrix;

[0034] 2. System synchronization, 8-core synchronization once, 8-core is in the ready state;

[0035] 3. DSP chip 0-core starts, DDR block transposition reading is performed through the QDMA channel, and the block matrix is ​​transferred from DDR to shared data;

[0036] 4. Syste...

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Abstract

The invention discloses a big data transposition method based on a C6678 platform, comprising the following steps: system initialization, setting detailed parameters of block transposition: number ofblocks, column size of block matrix, and row size of block matrix. According to the initialized block transposing parameters, the block matrix is moved from DDR to shared data through QDMA channel DDRblock transposing reading. Start 8 cores to carry out block reading of data sharing storage in parallel, jump storage of on-chip storage, data is stored in sequence according to column format. Data processing of parallel transposed columns is carried out in on-chip memory space, and matrix transposed signal processing is completed. The transpose parallel column processing results are sequentiallywritten into the DDR, and the transpose processing results in the on-chip memory are stored in the DDR buffer area to complete the block transpose processing. The invention can greatly improve the efficiency of matrix transposition, shorten the data moving time, and has the advantages of processing while moving.

Description

technical field [0001] The invention relates to the technical field of radar data processing, in particular to a large data transposition method based on the C6678 platform. Background technique [0002] With the advancement of radar technology, big data, fast storage, and high-speed computing have become the mainstream of radar signal processing, especially the transposition reading and writing of massive data is an indispensable link for important functions such as STAP clutter suppression and SAR imaging. . However, limited by the linear storage constraints of large data storage devices, the performance of traditional transposition reading and writing of massive data will decrease rapidly with the increase of matrix operations, and sometimes the transposition time even takes up 70% of the entire signal processing time. , has become a fatal short board restricting the development of radar real-time signal processing. [0003] In order to solve the problem of extremely lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/78
CPCG06F7/785
Inventor 李磊淩凯
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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