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Method for evaluating FPGA (Field Programmable Gata Array) interconnection structure based on quantization of model

An interconnection structure and model technology, applied in the field of electronics, can solve the problems of subjective conclusions, high time cost, inability to fully search and mine the FPGA interconnection structure, etc., to ensure the accuracy and speed up the evaluation.

Active Publication Date: 2014-09-03
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both methods have obvious shortcomings. The former cannot fully search and mine the potential FPGA interconnect structure, and the conclusion is more subjective; although the latter is accurate, it costs a lot of time, and it is impossible to conduct large-scale searches in practice.

Method used

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  • Method for evaluating FPGA (Field Programmable Gata Array) interconnection structure based on quantization of model
  • Method for evaluating FPGA (Field Programmable Gata Array) interconnection structure based on quantization of model
  • Method for evaluating FPGA (Field Programmable Gata Array) interconnection structure based on quantization of model

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Embodiment Construction

[0033] Take the statistics of "average number of jumps" as an example to further elaborate the present invention below, but it does not constitute a limitation of the present invention

[0034] As the name implies, the "average number of jumps" ( AverageHop ) refers to the weighted average of the number of hops required for a signal to reach any CLB within a certain area. The indicator contains three variable parameters, the formula is as follows:

[0035]

[0036] in:

[0037]

[0038]

[0039] The first parameter is the "view window radius" ( ), which refers to the size of the area. Adjusting this parameter can adjust the scope of our evaluation of the performance of the interconnection structure, because the performance advantages of different interconnection structures are different in different ranges, and some may be localized Very good, and some are good at interspersed, so the evaluation is performed under different observation windows, which is convenien...

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Abstract

The invention belongs to the electronic technology field, and in particular relates to a method for evaluating a FPGA (Field Programmable Gata Array) interconnection structure based on the quantization of a model. With the adoption of the method, the key factors capable of influencing the FPGA interconnection structure are quantitatively modeled, and an evaluation index based on average jumping number statistics is proposed on the basis of the model. Through the method, a large-scale FPGA interconnection structure space can be transversely searched within the short time, which is ensured to be basically consistent with the evaluation result obtained by the complete CAD process within the large scope.

Description

technical field [0001] The invention belongs to the field of electronic technology, relates to the design of FPGA interconnection structure, and in particular relates to an evaluation method of FPGA interconnection structure based on model quantification. technical background [0002] The hardware structure of modern FPGAs is becoming more and more complex, and the performance indicators for judging an FPGA chip are also varied. The purpose of the FPGA evaluation system is to evaluate the pros and cons of various FPGA hardware structure designs under the specified optimization goals, and finally use this to determine Guide the direction of hardware structure design and improvement. [0003] There are generally two traditional FPGA interconnection structure evaluation methods, one is to make choices based on the experience of designers, and the other is to map a set of standard test circuits to the target structure through a complete CAD process to observe the performance. B...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3185
Inventor 来金梅王臻谢丁王健胡敏陈利光
Owner FUDAN UNIV