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- W2026036594 abstract "Message-Passing is the dominant programming model for distributed memory parallel computers and Message-Passing Interface (MPI) is the standard. Along with point-to-point send and receive message primitives, MPI includes a set of collective communication operations that are used to synchronize and coordinate groups of tasks. The MPI_Barrier, one of the most important collective procedures, has been extensively studied on a variety of architectures over last twenty years. However, a cluster of Platform FPGAs is a new architecture and offers interesting, resource-efficient options for implementing the barrier operation. This paper describes an FPGA implementation of MPI_Barrier. The premise is that barrier (and other collective communication operations) are very sensitive to latency as the number of nodes scales to the tens-of-thousands. The relatively slow processors found on FPGAs will significantly cap performance. The FPGA hardware design implements a tree-based algorithm and is tightly integrated with the custom high-speed on-chip/off-chip network. MPI access is available through a specially-designed kernel module. This effectively offloads the work from the CPU and OS into hardware. The evaluation of this design shows significant performance gains compared with a conventional software implementation on both an FPGA cluster and a commodity cluster. Further, it suggests that moving other MPI collective operations into hardware would be beneficial." @default.
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- W2026036594 date "2009-08-01" @default.
- W2026036594 modified "2023-09-26" @default.
- W2026036594 title "Hardware implementation of MPI_Barrier on an FPGA cluster" @default.
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- W2026036594 doi "https://doi.org/10.1109/fpl.2009.5272560" @default.
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