NDLI: Looking under the hood of the IBM blue gene/Q network

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Billion-particle SIMD-friendly two-point correlation on large-scale HPC cluster systems

The universe at extreme scale: multi-petaflop sky simulation on the BG/Q

Demonstrating lustre over a 100Gbps wide area network of 3,500km

Portable section-level tuning of compiler parallelized applications

Direction-optimizing breadth-first search

Hybridizing S3D into an exascale application using OpenACC: an approach for moving to multi-petaflops and beyond

McrEngine: a scalable checkpointing system using data-aware aggregation and compression

Scalia: an adaptive scheme for efficient multi-cloud storage

Early evaluation of directive-based GPU programming models for productive exascale computing

Unleashing the high-performance and low-power of multi-core DSPs for general-purpose HPC

Parametric flows: automated behavior equivalencing for symbolic analysis of races in CUDA programs

RAMZzz: rank-aware dram power management with dynamic migrations and demotions

Protocols for wide-area data-intensive applications: design and performance issues

A divide and conquer strategy for scaling weather simulations with multiple regions of interest

Bamboo: translating MPI applications to a latency-tolerant, data-driven form

A framework for low-communication 1-D FFT

Peta-scale lattice quantum chromodynamics on a blue gene/Q supercomputer

Byte-precision level of detail processing for variable precision analytics

Measuring interference between live datacenter applications

Compass: a scalable simulator for an architecture for cognitive computing

Classifying soft error vulnerabilities in extreme-scale scientific applications using a binary instrumentation tool

Parallel I/O, analysis, and visualization of a trillion particle simulation

A new scalable parallel DBSCAN algorithm using the disjoint-set data structure

Characterizing and mitigating work time inflation in task parallel programs

Design and implementation of an intelligent end-to-end network QoS system

Critical lock analysis: diagnosing critical section bottlenecks in multithreaded applications

First-ever full observable universe simulation

A study of DRAM failures in the field

ATLAS grid workload on NDGF resources: analysis, modeling, and workload generation

Dataflow-driven GPU performance projection for multi-kernel transformations

Design and analysis of data management in scalable parallel scripting

Application data prefetching on the IBM blue gene/Q supercomputer

A parallel two-level preconditioner for cosmic microwave background map-making

Extending the BT NAS parallel benchmark to exascale computing

Mapping applications with collectives over sub-communicators on torus networks

Communication avoiding and overlapping for numerical linear algebra

Cray cascade: a scalable HPC system based on a Dragonfly network

Toward real-time modeling of human heart ventricles at cellular resolution: simulation of drug-induced arrhythmias

4.45 Pflops astrophysical N-body simulation on K computer: the gravitational trillion-body problem

A study on data deduplication in HPC storage systems

A multi-objective auto-tuning framework for parallel codes

Breaking the speed and scalability barriers for graph exploration on distributed-memory machines

High throughput software for direct numerical simulations of compressible two-phase flows

Alleviating scalability issues of checkpointing protocols

Host load prediction in a Google compute cloud with a Bayesian model

Automatic generation of software pipelines for heterogeneous parallel systems

A scalable, numerically stable, high-performance tridiagonal solver using GPUs

MPI runtime error detection with MUST: advances in deadlock detection

MAGE: adaptive granularity and ECC for resilient and power efficient memory systems

High performance RDMA-based design of HDFS over InfiniBand

Forward and adjoint simulations of seismic wave propagation on emerging large-scale GPU architectures

Tiling stencil computations to maximize parallelism

Parallel geometric-algebraic multigrid on unstructured forests of octrees

Massively parallel X-ray scattering simulations

Combining in-situ and in-transit processing to enable extreme-scale scientific analysis

T: a data-centric cooling energy costs reduction approach for big data analytics cloud

Optimizing fine-grained communication in a biomolecular simulation application on Cray XK6

Containment domains: a scalable, efficient, and flexible resilience scheme for exascale systems

Data-intensive spatial filtering in large numerical simulation datasets

Parallel Bayesian network structure learning with application to gene networks

Legion: expressing locality and independence with logical regions

Looking under the hood of the IBM blue gene/Q network

Code generation for parallel execution of a class of irregular loops on distributed memory systems

Optimizing the computation of n-point correlations on large-scale astronomical data

Fault prediction under the microscope: a closer look into HPC systems

On the effectiveness of application-aware self-management for scientific discovery in volunteer computing systems

A practical method for estimating performance degradation on multicore processors, and its application to HPC workloads

Usage behavior of a large-scale scientific archive

Hardware-software coherence protocol for the coexistence of caches and local memories

A massively space-time parallel N-body solver

NUMA-aware graph mining techniques for performance and energy efficiency

Optimization principles for collective neighborhood communications

Communication-avoiding parallel strassen: implementation and performance

GRAPE-8: an accelerator for gravitational N-body simulation with 20.5Gflops/W performance

Extreme-scale UQ for Bayesian inverse problems governed by PDEs

Characterizing output bottlenecks in a supercomputer

Patus for convenient high-performance stencils: evaluation in earthquake simulations

Large-scale energy-efficient graph traversal: a path to efficient data-intensive supercomputing

Design and modeling of a non-blocking checkpointing system

Cost- and deadline-constrained provisioning for scientific workflow ensembles in IaaS clouds

Accelerating MapReduce on a coupled CPU-GPU architecture

Efficient backprojection-based synthetic aperture radar computation with many-core processors

Novel views of performance data to analyze large-scale adaptive applications

Efficient and reliable network tomography in heterogeneous networks using BitTorrent broadcasts and clustering algorithms

Compiler-directed file layout optimization for hierarchical storage systems

Scalable multi-GPU 3-D FFT for TSUBAME 2.0 supercomputer

High performance radiation transport simulations: preparing for Titan

Efficient data restructuring and aggregation for I/O acceleration in PIDX

ValuePack: value-based scheduling framework for CPU-GPU clusters

Heuristic static load-balancing algorithm applied to the fragment molecular orbital method

Parallel particle advection and FTLE computation for time-varying flow fields

A multithreaded algorithm for network alignment via approximate matching

Designing a unified programming model for heterogeneous machines

Design of a scalable InfiniBand topology service to enable network-topology-aware placement of processes

Hierarchical task mapping of cell-based AMR cosmology simulations

Detection and correction of silent data corruption for large-scale high-performance computing

On using virtual circuits for GridFTP transfers

Aspen: a domain specific language for performance modeling

On distributed file tree walk of parallel file systems

What scientific applications can benefit from hardware transactional memory?

High-performance general solver for extremely large-scale semidefinite programming problems

Optimization of geometric multigrid for emerging multi- and manycore processors

Optimizing overlay-based virtual networking through optimistic interrupts and cut-through forwarding

Managing data-movement for effective shared-memory parallelization of out-of-core sparse solvers

SGI® UV2: a fused computation and data analysis machine

Looking under the hood of the IBM blue gene/Q network

Content Provider	ACM Digital Library
Author	Mamidala, Amith Choudhury, Anamitra Steinmacher-Burow, Burkhard Petrini, Fabrizio Kumar, Sameer Walkup, Robert Singhal, Swati Senger, Robert Sugawara, Yutaka Heidelberger, Philip Eisley, Noel Sabharwal, Yogish Parker, Jeffrey J. Chen, Dong
Abstract	This paper explores the performance and optimization of the IBM Blue Gene/Q (BG/Q) five dimensional torus network on up to 16K nodes. The BG/Q hardware supports multiple dynamic routing algorithms and different traffic patterns may require different algorithms to achieve best performance. Between 85% to 95% of peak network performance is achieved for all-to-all traffic, while over 85% of peak is obtained for challenging bisection pairings. A new software-controlled algorithm is developed for bisection traffic that selects which hardware algorithm to employ and achieves better performance than any individual hardware algorithm. The benefit of dynamic routing is shown for a highly non-uniform "transpose" traffic pattern. To evaluate memory and network performance, the HPCC Random Access benchmark was tuned for BG/Q and achieved 858 Giga Updates per Second (GUPS) on 16K nodes. To further accelerate message processing, the message libraries on BG/Q enable the offloading of messaging overhead onto dedicated communication threads. Several applications, including Algebraic Multigrid (AMG), exhibit from 3 to 20% gain using communication threads.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISBN	9781467308045
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-11-10
Access Restriction	Subscribed
Subject Keyword	Interconnection network Blue gene Gups Network routing Network performance
Content Type	Text
Resource Type	Article

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