Presentation 2010-05-14
GALS Design for Scalable Array Processors Operating on Multiple FPGAs
Luzhou WANG, Kentaro SANO, Satoru YAMAMOTO,
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Abstract(in English) So far we have proposed systolic computational-memory(SCM)architecture for high-performance and scalable computation based on the finite difference methods. The SCM architecture has a completely parallel array structure to achieve scalable performance to the increased hardware resources of a multi-FPGA system. The problem is that real-world implementation requires globally asynchronous and locally synchronous(GALS)design for scalably operating over multiple FPGAs with different clock domains. This paper presents GALS design of SCM arrays(SCMA)for asynchronous communication and a stall mechanism to guarantee the data synchronization among processing elements of different clock domains. Prototype implementation with ALTERA Stratix III FPGAs shows that the proposed design does not give a big overhead in operating frequency and hardware resource utilization. We also evaluate the scalability of the SCMA over multiple FPGAs considering actual stall cycles.
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Keyword(in English) custom computing machines / difference scheme / FPGA / GALS
Paper # RECONF2010-13
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Committee RECONF
Conference Date 2010/5/6(1days)
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Registration To Reconfigurable Systems (RECONF)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) GALS Design for Scalable Array Processors Operating on Multiple FPGAs
Sub Title (in English)
Keyword(1) custom computing machines
Keyword(2) difference scheme
Keyword(3) FPGA
Keyword(4) GALS
1st Author's Name Luzhou WANG
1st Author's Affiliation Graduate School of Information Sciences, Tohoku University()
2nd Author's Name Kentaro SANO
2nd Author's Affiliation Graduate School of Information Sciences, Tohoku University
3rd Author's Name Satoru YAMAMOTO
3rd Author's Affiliation Graduate School of Information Sciences, Tohoku University
Date 2010-05-14
Paper # RECONF2010-13
Volume (vol) vol.110
Number (no) 32
Page pp.pp.-
#Pages 6
Date of Issue