A cycle-accurate compilation algorithm for custom pipelined datapaths
A cycle-accurate compilation algorithm for custom pipelined datapaths
复制标题
用于自定义流水线数据路径的周期精确编译算法
DOI:
10.1145/1084834.1084845
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
D. Gajski
中科院分区:
文献类型:
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作者:
Mehrdad Reshadi;D. Gajski
Traditional high level synthesis (HLS) techniques generate a datapath and controller for a given behavioral description. The growing wiring cost and delay of today technologies require aggressive optimizations, such as interconnect pipelining, that cannot be done after generating the datapath and without invalidating the schedule. On the other hand, the increasing manufacturing complexities demand approaches that favor design for manufacturability (DFM).To address these problems we propose an approach in which the datapath of the architecture is fully allocated before scheduling and binding. We compile a C program directly to the datapath and generate the controller. We can support the entire ANSI C syntax because the datapath can be as complex as the datapath of a processor. Since there is no instruction abstraction in this architecture we call it No-Instruction-Set-Computer (NISC). As the first step towards realization of a NISC-based design flow, we present an algorithm that maps an application on a given datapath by performing scheduling and binding simultaneously. With this algorithm, we achieved up to 70% speedup on a NISC with a datapath similar to that of MIPS, compared to a MIPS gcc compiler. It also efficiently handles different datapath features such as pipelining, forwarding and multi-cycle units.
DOI:
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发表时间:
2008
期刊:
社会保険旬報 2008年11月1日号
影响因子:
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作者:
姫野順一;北川勝彦;高橋泰
通讯作者:
高橋泰