CSI HPC Seminar Series 2022
from
Wednesday 12 January 2022 (12:00)
to
Saturday 31 December 2022 (19:00)
Monday 10 January 2022
Tuesday 11 January 2022
Wednesday 12 January 2022
12:00
Performance portability with the SYCL programming model
-
Vincent Pascuzzi
(
Brookhaven National Laboratory
)
Performance portability with the SYCL programming model
Vincent Pascuzzi
(
Brookhaven National Laboratory
)
12:00 - 13:00
Advancements in high performance computing (HPC) have provided unprecedented potential for scientific research and discovery. To help address the “many platforms problem”—stemming from major semiconductor vendors all staking their claim in the market—are the numerous programming models under development which aim for performance portability. This talk will discuss such programming models, and present recent studies on performance portability, with a focus on SYCL: a single-source heterogeneous programming paradigm from the Khronos Group.
Thursday 13 January 2022
Friday 14 January 2022
Saturday 15 January 2022
Sunday 16 January 2022
Monday 17 January 2022
Tuesday 18 January 2022
Wednesday 19 January 2022
Thursday 20 January 2022
Friday 21 January 2022
Saturday 22 January 2022
Sunday 23 January 2022
Monday 24 January 2022
Tuesday 25 January 2022
Wednesday 26 January 2022
14:00
Preparing the PIConGPU for the next-generation computing systems
-
Sunita Chandrasekaran
(
University of Delaware and Brookhaven National Laboratory
)
Preparing the PIConGPU for the next-generation computing systems
Sunita Chandrasekaran
(
University of Delaware and Brookhaven National Laboratory
)
14:00 - 15:00
This talk will highlight journey thus far preparing the high performance computing software stack for large complex scientific applications such as OLCFs CAAR’s PIConGPU for Frontier. The talk will cover recent results, tools used, and programming models used for preparing PIConGPU on pre-exascale systems. OLCF’s Center for Accelerated Application Readiness (CAAR) is created to ready applications for the facility’s next-generation supercomputers. PIConGPU is one of the 8 CAAR projects chosen for Frontier.
Thursday 27 January 2022
Friday 28 January 2022
Saturday 29 January 2022
Sunday 30 January 2022
Monday 31 January 2022
Tuesday 1 February 2022
Wednesday 2 February 2022
Thursday 3 February 2022
Friday 4 February 2022
Saturday 5 February 2022
Sunday 6 February 2022
Monday 7 February 2022
Tuesday 8 February 2022
Wednesday 9 February 2022
14:00
High-Performance Tensor Algebra for Chemistry and Materials
-
Eduard Valeyev
(
Virginia Tech
)
High-Performance Tensor Algebra for Chemistry and Materials
Eduard Valeyev
(
Virginia Tech
)
14:00 - 15:00
Abstract: Tensor algebra is the foundation of quantum simulation in all contexts, including predictive chemistry and materials simulation. Unlike the linear algebra (of vectors and matrices), tensor algebra is significantly richer, less understood formally, has less mature software ecosystem, and most importantly puts more emphasis on exploiting data sparsity. In this talk I will review the key computational challenges of tensor algebra, especially on modern large-scale heterogeneous HPC platforms, and highlight some of our recent work on the open-source TiledArray tensor framework for data-sparse tensor algebra on distributed memory and heterogeneous platforms and its applications in the context of computational chemistry.
Thursday 10 February 2022
Friday 11 February 2022
Saturday 12 February 2022
Sunday 13 February 2022
Monday 14 February 2022
Tuesday 15 February 2022
Wednesday 16 February 2022
Thursday 17 February 2022
Friday 18 February 2022
Saturday 19 February 2022
Sunday 20 February 2022
Monday 21 February 2022
Tuesday 22 February 2022
Wednesday 23 February 2022
14:00
Covariant programme : a programming approach to target both SIMD and SIMT execution
-
Peter Boyle
(
BNL
)
Covariant programme : a programming approach to target both SIMD and SIMT execution
Peter Boyle
(
BNL
)
14:00 - 15:00
Abstract: Discussion of the cross platform programming approach to modern HPCs taken by “Grid”, a high performance QCD C++ library. It targets both SIMD intrinsics vectorisation on modern CPUs and SIMT offload models with HIP, SYCL and Cuda back ends. It allows single source high performance kernels to be developed that support all of these targets. I discuss the software approaches and (to the extent allowed) the performance of the code on a number of current or planned platforms including Perlmutter, Frontier and Aurora.
Thursday 24 February 2022
Friday 25 February 2022
Saturday 26 February 2022
Sunday 27 February 2022
Monday 28 February 2022
Tuesday 1 March 2022
Wednesday 2 March 2022
Thursday 3 March 2022
Friday 4 March 2022
Saturday 5 March 2022
Sunday 6 March 2022
Monday 7 March 2022
Tuesday 8 March 2022
Wednesday 9 March 2022
Thursday 10 March 2022
Friday 11 March 2022
Saturday 12 March 2022
Sunday 13 March 2022
Monday 14 March 2022
Tuesday 15 March 2022
Wednesday 16 March 2022
14:00
Dynamic Loop Scheduling across Multi-xPUs Heterogeneous Processors in Nodes of DoE's Exascale Supercomputers
-
Vivek Kale
(
BNL
)
Dynamic Loop Scheduling across Multi-xPUs Heterogeneous Processors in Nodes of DoE's Exascale Supercomputers
Vivek Kale
(
BNL
)
14:00 - 15:00
Abstract: Performance of science and engineering simulations on supercomputers is dependent on communication across nodes and computation performance within a node. With the Moore's Law costs of data movement across the interconnect network, the next-generation supercomputers - particularly those in the DoE - will have the same number of nodes on a supercomputer, but the nodes will actually become more powerful and extremely heterogeneous, with a set of CPUs (multi-cores) and a set of GPUs (multi-devices) on them. Particularly because of application load imbalance and load imbalance due to system noise and complexities of the node's hardware, managing the computational resources on these nodes is challenging. In this talk, I will discuss support in the DoE Exascale Computer Project (ECP) Software Stack to parallelize MPI+OpenMP offload ECP applications across heterogeneous processors/accelerators through user-defined and custom-tuned locality-sensitive loop scheduling with LLVM’s OpenMP along with interoperability of the MPI and OpenMP runtime systems.
Thursday 17 March 2022
Friday 18 March 2022
Saturday 19 March 2022
Sunday 20 March 2022
Monday 21 March 2022
Tuesday 22 March 2022
Wednesday 23 March 2022
Thursday 24 March 2022
Friday 25 March 2022
Saturday 26 March 2022
Sunday 27 March 2022
Monday 28 March 2022
Tuesday 29 March 2022
Wednesday 30 March 2022
Thursday 31 March 2022
Friday 1 April 2022
Saturday 2 April 2022
Sunday 3 April 2022
Monday 4 April 2022
Tuesday 5 April 2022
Wednesday 6 April 2022
Thursday 7 April 2022
Friday 8 April 2022
Saturday 9 April 2022
Sunday 10 April 2022
Monday 11 April 2022
Tuesday 12 April 2022
Wednesday 13 April 2022
Thursday 14 April 2022
Friday 15 April 2022
Saturday 16 April 2022
Sunday 17 April 2022
Monday 18 April 2022
Tuesday 19 April 2022
Wednesday 20 April 2022
14:00
Designing Efficient Graph Algorithms Through Proxy-Driven Codesign and Analysis
-
Sayan Ghosh
(
Pacific Northwest National Laboratory
)
Designing Efficient Graph Algorithms Through Proxy-Driven Codesign and Analysis
Sayan Ghosh
(
Pacific Northwest National Laboratory
)
14:00 - 15:00
Abstract: Developing scalable graph algorithms is challenging, due to the inherent irregularities in the graph structure and memory-access intensive computational pattern. Proxy application driven software-hardware codesign plays a vital role in driving innovation among the developments of applications, software infrastructure and hardware architecture. Proxy applications are self-contained and simplified codes that are intended to model the performance-critical computations within applications. In this talk, I will discuss facilitating software-hardware codesign through proxy applications with the goal of improving the performance of graph analytics workflows on heterogeneous systems. However, even representative proxy applications may be insufficient to diagnose performance bottlenecks of common graph computational patterns at scale. Therefore, we also discuss the role of derivative benchmarks in enhancing graph applications on HPC systems. We will drive the discussion using three case studies--Graph matching, clustering/community detection and triangle counting, which have applications in the domains of proteomics, computational biology, cybersecurity, numerical analysis and other data science scenarios.
Thursday 21 April 2022
Friday 22 April 2022
Saturday 23 April 2022
Sunday 24 April 2022
Monday 25 April 2022
Tuesday 26 April 2022
Wednesday 27 April 2022
Thursday 28 April 2022
Friday 29 April 2022
Saturday 30 April 2022
Sunday 1 May 2022
Monday 2 May 2022
Tuesday 3 May 2022
Wednesday 4 May 2022
Thursday 5 May 2022
Friday 6 May 2022
Saturday 7 May 2022
Sunday 8 May 2022
Monday 9 May 2022
Tuesday 10 May 2022
Wednesday 11 May 2022
Thursday 12 May 2022
Friday 13 May 2022
Saturday 14 May 2022
Sunday 15 May 2022
Monday 16 May 2022
Tuesday 17 May 2022
Wednesday 18 May 2022
14:00
Experiences with Ookami – an Fujitsu A64FX testbed
-
Eva Siegmann
(
Stony Brook University
)
Experiences with Ookami – an Fujitsu A64FX testbed
Eva Siegmann
(
Stony Brook University
)
14:00 - 15:00
Abstract: Stony Brook’s computing technology testbed, Ookami, provides researchers worldwide with access to Fujitsu A64FX processors. This processor developed by Riken and Fujitsu for the Japanese path to exascale computing and is currently deployed in the fastest computer in the world, Fugaku. Ookami is the first open deployment of this technology outside of Japan. This Cray Apollo 80 system entered its second year of operations. In this presentation we will share our experiences gained during this exciting first project period. This includes a project overview, details of processes such as onboarding users, account administration, user support and training, and outreach. The talk will also give technical details such as an overview of the compilers, which play a crucial role in achieving good performance. To support users to use the system efficiently we offer various opportunities such as webinars, hands-on sessions and we also try to sustain an active user community enabling exchange between the different research groups. In February 2022 the first Ookami user group meeting took place. We will present the key findings and give an outlook on the next project year, where Ookami will become an XSEDE service provider.
Thursday 19 May 2022
Friday 20 May 2022
Saturday 21 May 2022
Sunday 22 May 2022
Monday 23 May 2022
Tuesday 24 May 2022
Wednesday 25 May 2022
Thursday 26 May 2022
Friday 27 May 2022
Saturday 28 May 2022
Sunday 29 May 2022
Monday 30 May 2022
Tuesday 31 May 2022
Wednesday 1 June 2022
Thursday 2 June 2022
14:00
Particle Accelerators Modeling at Exascale
-
Axel Huebl
(
Lawrence Berkeley National Laboratory
)
Particle Accelerators Modeling at Exascale
Axel Huebl
(
Lawrence Berkeley National Laboratory
)
14:00 - 15:00
Abstract: Particle accelerators, among the largest, most complex devices, demand increasingly sophisticated computational tools for the design and optimization of the next generation of accelerators that will meet the challenges of increasing energy, intensity, accuracy, compactness, complexity and efficiency. It is key that contemporary software take advantage of the latest advances in computer hardware and scientific software engineering practices, delivering speed, reproducibility and feature composability for the aforementioned challenges. We will describe the software stack that is being developed at the heart of the Beam pLasma Accelerator Simulation Toolkit (BLAST) by LBNL and collaborators. We first describe how the US DOE Exascale Computing Project (ECP) application WarpX [1-3] will exploit the power of GPUs and its performance on Exascale supercomputers for the modeling of laser-plasma acceleration. We then describe how we are leveraging the ECP experience to develop a new generation ecosystem of codes that, combined with machine learning, will deliver from ultrafast to ultraprecise modeling for future accelerator design and operations, towards enabling virtual twins of accelerators.
Friday 3 June 2022
Saturday 4 June 2022
Sunday 5 June 2022
Monday 6 June 2022
Tuesday 7 June 2022
Wednesday 8 June 2022
Thursday 9 June 2022
Friday 10 June 2022
Saturday 11 June 2022
Sunday 12 June 2022
Monday 13 June 2022
Tuesday 14 June 2022
Wednesday 15 June 2022
14:00
NWQSim: Scalable Simulation of Quantum Systems on Classical Heterogeneous HPC Clusters
-
Ang Li
(
Pacific Northwest National Laboratory
)
NWQSim: Scalable Simulation of Quantum Systems on Classical Heterogeneous HPC Clusters
Ang Li
(
Pacific Northwest National Laboratory
)
14:00 - 15:00
Abstract: Despite fascinating developments in NISQ based quantum computing recently, simulations of quantum programs in classical HPC systems are still essential in validating quantum algorithms, understanding the noise effect, and designing robust quantum algorithms. To allow efficient large-scale noise-enabled simulation on state-of-the-art heterogeneous supercomputers, we developed NWQSim, a quantum circuit simulation environment that provides support for frontends such as Q#, Qiskit, OpenQASM, etc., and backends such as X86/Power CPUs, NVIDIA/AMD GPUs, and Xeon-Phis, through state-vector and density matrix. NWQSim can scale out to more than a thousand GPUs/CPUs on ORNL Summit and has been tested on ORNL Spock, ANL Theta and NERSC Cori, achieving significant speedups over existing approaches. In this talk, I will describe the various techniques that enable high-performance, scalability and portability, showing you a handful HPC tool for noisy quantum system simulation. NWQSim is supported by the U.S. DOE Quantum Science Center (QSC).
Thursday 16 June 2022
Friday 17 June 2022
Saturday 18 June 2022
Sunday 19 June 2022
Monday 20 June 2022
Tuesday 21 June 2022
Wednesday 22 June 2022
Thursday 23 June 2022
Friday 24 June 2022
Saturday 25 June 2022
Sunday 26 June 2022
Monday 27 June 2022
Tuesday 28 June 2022
Wednesday 29 June 2022
Thursday 30 June 2022
Friday 1 July 2022
Saturday 2 July 2022
Sunday 3 July 2022
Monday 4 July 2022
Tuesday 5 July 2022
Wednesday 6 July 2022
Thursday 7 July 2022
Friday 8 July 2022
Saturday 9 July 2022
Sunday 10 July 2022
Monday 11 July 2022
Tuesday 12 July 2022
Wednesday 13 July 2022
14:00
The TAU Performance System
-
Kevin Huck
(
University of Oregon
)
The TAU Performance System
Kevin Huck
(
University of Oregon
)
14:00 - 15:00
Abstract: The TAU Performance System® is a portable profiling and tracing toolkit for performance analysis of parallel programs written in Fortran, C, C++, UPC, Java, and Python. TAU (Tuning and Analysis Utilities) is capable of gathering performance information through instrumentation of functions, methods, basic blocks, and statements as well as event-based sampling. The API also provides selection of profiling groups for organizing and controlling instrumentation. The instrumentation can be inserted in the source code using an automatic instrumentor tool based on the Program Database Toolkit (PDT), with compiler plugins, dynamically using DyninstAPI, at runtime in the Java Virtual Machine, or manually using the instrumentation API. TAU's profile visualization tool, ParaProf, provides graphical displays of the performance measurements, in aggregate and single node/context/thread forms. The user can quickly identify sources of performance bottlenecks in the application using the graphical interface. In addition, TAU can generate event traces that can be displayed with the Vampir or JumpShot trace visualization tools. In this talk, we will introduce the basic concepts of performance measurement and analysis for HPC, discuss the many different programming model support available in TAU, and how they can all be utilized to identify performance bottlenecks in applications.
Thursday 14 July 2022
Friday 15 July 2022
Saturday 16 July 2022
Sunday 17 July 2022
Monday 18 July 2022
Tuesday 19 July 2022
Wednesday 20 July 2022
Thursday 21 July 2022
Friday 22 July 2022
Saturday 23 July 2022
Sunday 24 July 2022
Monday 25 July 2022
Tuesday 26 July 2022
Wednesday 27 July 2022
14:00
COMPOFF: A Compiler Cost model using Machine Learning to predict the Cost of OpenMP Offloading
-
Alok Mishra
(
Stony Brook University
)
COMPOFF: A Compiler Cost model using Machine Learning to predict the Cost of OpenMP Offloading
Alok Mishra
(
Stony Brook University
)
14:00 - 15:00
Abstract: The HPC industry is inexorably moving towards an era of extremely heterogeneous architectures, with more devices configured on any given HPC platform and potentially more kinds of devices, some of them highly specialized. Writing a separate code suitable for each target system for a given HPC application is not practical. The better solution is to use directive-based parallel programming models such as OpenMP. OpenMP provides a number of options for offloading a piece of code to devices like GPUs. To select the best option from such options during compilation, most modern compilers use analytical models to estimate the cost of executing the original code and the different offloading code variants. Building such an analytical model for compilers is a difficult task that necessitates a lot of effort on the part of a compiler engineer. Recently, machine learning techniques have been successfully applied to build cost models for a variety of compiler optimization problems. In this paper, we present COMPOFF, a cost model that statically estimates the Cost of OpenMP OFFloading using a neural network model. We used six different transformations on a parallel code of Wilson Dslash Operator to support GPU offloading, and we predicted their cost of execution on different GPUs using COMPOFF during compile time. Our results show that this model can predict offloading costs with a root mean squared error in prediction of less than 0.5 seconds. Our preliminary findings indicate that this work will make it much easier and faster for scientists and compiler developers to port legacy HPC applications that use OpenMP to new heterogeneous computing environments.
Thursday 28 July 2022
Friday 29 July 2022
Saturday 30 July 2022
Sunday 31 July 2022
Monday 1 August 2022
Tuesday 2 August 2022
Wednesday 3 August 2022
Thursday 4 August 2022
Friday 5 August 2022
Saturday 6 August 2022
Sunday 7 August 2022
Monday 8 August 2022
Tuesday 9 August 2022
Wednesday 10 August 2022
14:00
Building a performant data infrastructure using Apache Arrow
-
Fernanda Foertter
(
Voltron Data Inc.
)
Zahra Ronaghi
(
Voltron Data Inc.
)
Building a performant data infrastructure using Apache Arrow
Fernanda Foertter
(
Voltron Data Inc.
)
Zahra Ronaghi
(
Voltron Data Inc.
)
14:00 - 15:00
*Abstract:* As data volumes have increased over the past few years, it has become challenging for data scientists and researchers to analyze and extract insights from large datasets. One of the main challenges with existing software is the ability to achieve high performance, portability, and programmability across different platforms. At Voltron Data, we are building a unified computing infrastructure on top of the Apache Arrow ecosystem, that will allow developers in any domain to write code in multiple programming languages used in data science and scale their applications from personal computers to large compute clusters. In this presentation, we will talk about how we are integrating data analytics components and tools with existing open-source offerings in an effort to connect data producers to data consumers. *Biography:* Fernanda is a Director of Developer Relations at Voltron Data specializing in data science and high-performance computing (HPC). She began her HPC career in graduate school, developing molecular dynamics applications and as an administrator of the Florida Laboratory for Materials Engineering Simulation (FLAMES) at the University of Florida. Following graduate school, she was HPC manager at an agricultural genomics company, Genus Plc. and moved to Oak Ridge National Lab’s Leadership Computing Facility, OLCF. While there she was the training coordinator for systems in the facility including Jaguar, Titan, and Summit, the latter two became #1 GPU-based supercomputers in the Top500, where she created the GPU Hackathon series. She was also part of the CORAL project in the programming environment team that selected Summit as the center's next supercomputer. She became an HPC Data Scientist within the Biomedical Sciences, Engineering, and Computing group (BSEC) working on Pilot 3 of the CANDLE (Cancer Moonshot) project and was co-PI of Kokkos C++ library funded by Exascale Computing Project (ECP). After ORNL, Fernanda was a Developer Advocate and Alliance Manager for HPC + AI at NVIDIA where she helped to build an ecosystem to support GPU developers and users in the life sciences. More recently she helped support healthcare related efforts during COVID as a Sr Scientific Consultant at BioTeam and now at Voltron Data she helps build better tools for data scientists.
Thursday 11 August 2022
Friday 12 August 2022
Saturday 13 August 2022
Sunday 14 August 2022
Monday 15 August 2022
Tuesday 16 August 2022
Wednesday 17 August 2022
Thursday 18 August 2022
Friday 19 August 2022
Saturday 20 August 2022
Sunday 21 August 2022
Monday 22 August 2022
Tuesday 23 August 2022
Wednesday 24 August 2022
Thursday 25 August 2022
Friday 26 August 2022
Saturday 27 August 2022
Sunday 28 August 2022
Monday 29 August 2022
Tuesday 30 August 2022
Wednesday 31 August 2022
Thursday 1 September 2022
Friday 2 September 2022
Saturday 3 September 2022
Sunday 4 September 2022
Monday 5 September 2022
Tuesday 6 September 2022
Wednesday 7 September 2022
Thursday 8 September 2022
Friday 9 September 2022
Saturday 10 September 2022
Sunday 11 September 2022
Monday 12 September 2022
Tuesday 13 September 2022
Wednesday 14 September 2022
Thursday 15 September 2022
Friday 16 September 2022
Saturday 17 September 2022
Sunday 18 September 2022
Monday 19 September 2022
Tuesday 20 September 2022
Wednesday 21 September 2022
Thursday 22 September 2022
Friday 23 September 2022
Saturday 24 September 2022
Sunday 25 September 2022
Monday 26 September 2022
Tuesday 27 September 2022
Wednesday 28 September 2022
Thursday 29 September 2022
Friday 30 September 2022
Saturday 1 October 2022
Sunday 2 October 2022
Monday 3 October 2022
Tuesday 4 October 2022
Wednesday 5 October 2022
14:00
Chimbuko - A workflow-level performance analysis tool
-
Christopher Kelly
(
Brookhaven National Laboratory
)
Chimbuko - A workflow-level performance analysis tool
Christopher Kelly
(
Brookhaven National Laboratory
)
14:00 - 15:00
*Abstract:* Many modern scientific analyses on HPC machines utilize workflows comprising multiple components coexisting on the same hardware resources. In such complex systems there is a significant potential for performance issues that arise only when the workflow is run together and at-scale, and as such will not be captured by traditional benchmarking and profiling of the individual components. Identifying the root cause of these issues using detailed application traces is typically impractical due to the sheer volume of data. Chimbuko circumvents this issue by performing an in situ real-time streaming analysis of trace data, focusing on identifying and recording only performance abnormalities using machine learning techniques. I will discuss the design of the tool and provide examples and instructions on how to deploy and run. *Biography:* Christopher joined the Chimbuko project in 2020 and is the lead developer for the tool's backend. He has a background in lattice QCD, a computational branch of theoretical particle physics. He obtained his PhD at Edinburgh University in 2010, and has completed postdoctoral positions at Columbia University and BNL's Physics Dept. During this time he gained much practical experience with running, developing and optimizing scientific software for HPC systems. Between 2016 and 2020 he held an associate staff scientist position at Columbia funded by Intel, where he worked to evaluate lattice QCD algorithms on prototype exascale computer architectures. He joined the Computational Science Institute at BNL in early 2020 where he divides his time between the Chimbuko project and developing and optimizing lattice QCD software for the exascale machines.
Thursday 6 October 2022
Friday 7 October 2022
Saturday 8 October 2022
Sunday 9 October 2022
Monday 10 October 2022
Tuesday 11 October 2022
Wednesday 12 October 2022
Thursday 13 October 2022
Friday 14 October 2022
Saturday 15 October 2022
Sunday 16 October 2022
Monday 17 October 2022
Tuesday 18 October 2022
Wednesday 19 October 2022
Thursday 20 October 2022
Friday 21 October 2022
13:00
SciServer: a Science Platform for Astronomy and Beyond
-
Arik Mitschang
(
Johns Hopkins University
)
SciServer: a Science Platform for Astronomy and Beyond
Arik Mitschang
(
Johns Hopkins University
)
13:00 - 14:00
**Abstract:** SciServer is a so-called "Science Platform" developed at the Institute for Data Intensive Engineering and Science (IDIES), with the primary goal of "bringing analysis to the data" in a collaborative manner. Originally developed to simplify access to the Sloan Digital Sky Servey (SDSS) by way of enabling users to write custom SQL against large relational databases, it has grown to enable access to a wide range of resources and data using a variety of software tools all accessible via the web without the need for data downloads. Users can focus on their core competencies without worrying about software installs or compatibility issues, and can easily share results for another use to pick up and leverage their own expertise. Research groups with specific computational needs can benefit from private accelerated computing resources such as GPUs, and parallel hyper-local computing with Spark and Dask. While SciServer is a platform hosted at JHU freely available for the public, it is also a vended software system installed a sites around the world both private and public. In this talk I will discuss SciServer from both a user perspective and as a cyberinfrastructure system and cover recent developments and future directions for the platform. **Biography:** Arik obtained his undergraduate degree in physics from Humboldt State University in Northern California. He then went on to work in the data systems division at the Harvard Smithsonian Center for Astrophysics in Cambridge MA, helping develop the Chandra X-ray observatory. After some research work there, he went to get his PhD in Astronomy at Macquarie University in Sydney, AUS, and then moved to Tokyo, Japan to work as a software engineer in the Search Engine division of Amazon. Finally, he went to IDIES/JHU in 2019, where he works on development of the SciServer platform - but also is a heavy user of the system for data science tasks within the institute.
Saturday 22 October 2022
Sunday 23 October 2022
Monday 24 October 2022
Tuesday 25 October 2022
Wednesday 26 October 2022
Thursday 27 October 2022
Friday 28 October 2022
Saturday 29 October 2022
Sunday 30 October 2022
Monday 31 October 2022
Tuesday 1 November 2022
Wednesday 2 November 2022
Thursday 3 November 2022
Friday 4 November 2022
Saturday 5 November 2022
Sunday 6 November 2022
Monday 7 November 2022
Tuesday 8 November 2022
Wednesday 9 November 2022
Thursday 10 November 2022
Friday 11 November 2022
Saturday 12 November 2022
Sunday 13 November 2022
Monday 14 November 2022
Tuesday 15 November 2022
Wednesday 16 November 2022
Thursday 17 November 2022
Friday 18 November 2022
Saturday 19 November 2022
Sunday 20 November 2022
Monday 21 November 2022
Tuesday 22 November 2022
Wednesday 23 November 2022
Thursday 24 November 2022
Friday 25 November 2022
Saturday 26 November 2022
Sunday 27 November 2022
Monday 28 November 2022
Tuesday 29 November 2022
Wednesday 30 November 2022
14:00
ExaWorks: Building Blocks for High-Performance Workflows
-
Shantenu Jha
(
BNL
)
ExaWorks: Building Blocks for High-Performance Workflows
Shantenu Jha
(
BNL
)
14:00 - 15:00
**Abstract:** We motivate workflows as a powerful computational methodology and their importance for scientific discovery. We argue workflows present the highest-level of execution and programming parallelism, and outline challenges in realizing this potential. We discuss coupling learning methods to traditional HPC simulations (“AI-coupled HPC” workflows), and the unique performance advantages and challenges thereof. We then introduce RADICAL-Cybertools — the first realization of the building blocks approach to workflow middleware — and outline how RADICAL middleware building blocks address the performance and scalability challenges of AI-coupled-HPC workflows. We conclude with a discussion of ExaWorks — an ECP software technology project — that realizes many of the conceptual advances and the vision of a community building blocks for workflows middleware.
Thursday 1 December 2022
Friday 2 December 2022
Saturday 3 December 2022
Sunday 4 December 2022
Monday 5 December 2022
Tuesday 6 December 2022
Wednesday 7 December 2022
Thursday 8 December 2022
Friday 9 December 2022
Saturday 10 December 2022
Sunday 11 December 2022
Monday 12 December 2022
Tuesday 13 December 2022
Wednesday 14 December 2022
Thursday 15 December 2022
Friday 16 December 2022
Saturday 17 December 2022
Sunday 18 December 2022
Monday 19 December 2022
Tuesday 20 December 2022
Wednesday 21 December 2022
Thursday 22 December 2022
Friday 23 December 2022
Saturday 24 December 2022
Sunday 25 December 2022
Monday 26 December 2022
Tuesday 27 December 2022
Wednesday 28 December 2022
Thursday 29 December 2022
Friday 30 December 2022
Saturday 31 December 2022