Proposal of a desk-side supercomputer with reconfigurable data-paths using rapid single-flux-quantum circuits

Naofumi Takagi, Kazuaki Murakami, Akira Fujimaki, Nobuyuki Yoshikawaj, Koji Inoue, Hiroaki Honda

Research output: Contribution to journalArticle

32 Citations (Scopus)


We propose a desk-side supercomputer with large-scale reconfigurable data-paths (LSRDPs) using superconducting rapid single- flux-quantum (RSFQ) circuits. It has several sets of computing unit which consists of a general-purpose microprocessor, an LSRDP and a memory. An LSRDP consists of a lot of, e.g., a few thousand, floating-point units (FPUs) and operand routing networks (ORNs) which connect the FPUs. We reconfigurethe LSRDP to fit a computation, i.e., a group of floating- point operations, which appears in a 'for' loop of numerical programs by setting the route in ORNs before the execution of the ioop. We propose to implement the LSRDPs by RSFQ circuits. The processors and the memories can be implemented by semiconductor technology. We expect that a 10 TFLOPS supercomputer, as well as a refrigerating engine, will be housed in a desk-side rack, using a near-future RSFQ process technology, such as 0.35 m process.

Original languageEnglish
Pages (from-to)350-355
Number of pages6
JournalIEICE Transactions on Electronics
Issue number3
Publication statusPublished - Mar 2008


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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