Advanced Software Technologies for Post-Peta Scale Computing
The Japanese Post-Peta CREST Research Project
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Article
Open AccessDesign and performance evaluation of UCX for the Tofu Interconnect D on Fugaku towards efficient multithreaded communication
The increasing trend of manycore processors makes multithreaded communication more important to avoid costly global synchronization among cores. One of the representative approaches that require multithreaded ...
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Chapter and Conference Paper
Enhancing the Parallel UC2B Framework: Approach Validation and Scalability Study
Anomaly detection is a critical aspect of uncovering unusual patterns in data analysis. This involves distinguishing between normal patterns and abnormal ones, which inherently involves uncertainty. This paper...
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Chapter and Conference Paper
OpenACC Unified Programming Environment for Multi-hybrid Acceleration with GPU and FPGA
Accelerated computing in HPC such as with GPU, plays a central role in HPC nowadays. However, in some complicated applications with partially different performance behavior is hard to solve with a single type ...
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Chapter and Conference Paper
Scaling the PageRank Algorithm for Very Large Graphs on the Fugaku Supercomputer
The PageRank algorithm is a widely used linear algebra method with many applications. As graphs with billions or more of nodes become increasingly common, being able to scale this algorithm on modern HPC arch...
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Article
Open AccessA new sustained system performance metric for scientific performance evaluation
Because of the increasing complexities of systems and applications, the performance of many traditional HPC benchmarks, such as HPL or HPCG, no longer correlates strongly with the actual performance of real ap...
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Article
Performance and power consumption analysis of Arm Scalable Vector Extension
Modern CPUs not only have multiple cores but also support wide single instruction multiple data (SIMD). This trend is expected to grow in the future. In this paper, we examine the effect of the vector length ...
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Chapter and Conference Paper
Correction to: Performance of the Supercomputer Fugaku for Breadth-First Search in Graph500 Benchmark
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Chapter
Multi-SPMD Programming Model with YML and XcalableMP
This chapter describes a multi-SPMD (mSPMD) programming model and a set of software and libraries to support the mSPMD programming model. The mSPMD programming model has been proposed to realize scalable appli...
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Chapter
XcalableMP 2.0 and Future Directions
This chapter presents the XcalableMP on the Fugaku supercomputer, the Japanese flagship supercomputer developed by FLAGSHIP2020 project in RIKEN R-CCS. The porting and the performance evaluation were done as a...
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Chapter
XcalableMP Programming Model and Language
XcalableMP (XMP) is a directive-based language extension of Fortran and C for distributed-memory parallel computers, and can be classified as a partitioned global address space (PGAS) language. One of the rema...
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Chapter
Hybrid-View Programming of Nuclear Fusion Simulation Code in XcalableMP
XcalableMP(XMP) supports a global-view model that allows programmers to define global data and to map them to a set of processors, which execute the distributed global data as a single thread. In XMP, the conc...
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Chapter and Conference Paper
Performance of the Supercomputer Fugaku for Breadth-First Search in Graph500 Benchmark
In this paper, we present the performance of the supercomputer Fugaku for breadth-first search (BFS) problem in the Graph500 benchmark, which is known as a ranking benchmark used to evaluate large-scale graph ...
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Article
InKS: a programming model to decouple algorithm from optimization in HPC codes
Existing programming models tend to tightly interleave algorithm and optimization in HPC simulation codes. This requires scientists to become experts in both the simulated domain and the optimization process a...
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Book
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Chapter and Conference Paper
OpenMP Task Generation for Batched Kernel APIs
The demand for calculating many small computation kernels is getting significantly important in the HPC area not only for the traditional numerical applications but also recent machine learning applications. W...
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Chapter
JST CREST Post-petascale Software Project Bridging to Exascale Computing
JST CREST post-petascale software project aimed to establish software technologies to explore extreme performance computing beyond petascale computing, on the road to exascale computing. Several research and d...
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Chapter
SCore
SCore is a package for high- performance clusters. It includes a low- communication layer named PM(v2), a user-level, global operating system called SCore-D, an MPI , an compiler that enables prog...
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Chapter and Conference Paper
\(\textsc {InKS}_{\textsf {}}\) , a Programming Model to Decouple Performance from Algorithm in HPC Codes
Existing programming models tend to tightly interleave algorithm and optimization in HPC simulation codes. This requires scientists to become experts in both the simulated domain and the optimization process a...
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Chapter and Conference Paper
Trade-Off of Offloading to FPGA in OpenMP Task-Based Programming
In High-Performance Computing (HPC), Field Programmable Gate Array (FPGA) is attracting increased attention as an accelerator because its performance has been dramatically improved in recent years. On the othe...
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Chapter and Conference Paper
The Impact of Taskyield on the Design of Tasks Communicating Through MPI
The OpenMP tasking directives promise to help expose a higher degree of concurrency to the runtime than traditional worksharing constructs, which is especially useful for irregular applications. In combination...
