Srikanth Yoginath | Kalyan Perumalla

COVID-relevant Scalable Computational Research Directions and Tools

Thu, 09 Apr 2020 00:00:00 +0000

This seminar conveys some directions and technical ideas being pursued by the Discrete Computing Systems Group of the Computer Science and Mathematics Division, in collaboration with others at the lab. Some of the scalable computational tools ready for applying to challenging computational problems are presented. Actual working codes ready for customization to COVID-related efforts are described, which are built for scaling to supercomputing platforms such as Summit.

Topics that are covered include:

A high resolution simulator, ExaCorona, that scales from laptops to leadership class supercomputers, is outlined that uses a discrete event model of virus spread, with probabilistically timed state transitions at the individual level across millions of individuals represented with arbitray geography and mobility characteristics.
A clonable simulation framework, CloneX, is introduced that enables millions of “what-if” scenarios to be executed rapidly on thousands of GPUs of Summit and similar supercomputers. An SEIR-based epidemiological model is outlined for numerous what-if simulations of disease spread that can be executed for country-scale populations like India’s, with ‘what-if’ scenarios, each varying in the outbreak points (hotspots), quarantines, vaccinations and hospitalizations.
A machine learning pipeline for the prediction of material structure properties directly from their neutron scattering profiles (development as part of the ExaLearn ECP co-design project). A brief overview of this system is provided, which is being applied for studies of new therapeutic targets and viral protein-structure-assisted drug design studies related to the COVID outbreak.
Network science methods are outlined for detecting information cascades in time varying large-scale social communication networks. We discuss its implications for detecting occurrence/response or epidemic related events from Twitter and similar global interaction systems.

A Digital Twin Framework for Testing, Evaluation and Deployment of Resilient Cyber-physical Systems

Wed, 01 Jan 2020 00:00:00 +0000

Energy Conservation Through Cloned Execution Of Simulations

Sun, 08 Dec 2019 00:00:00 +0000

https://ieeexplore.ieee.org/abstract/document/9004821

On the Effectiveness of Recurrent Neural Networks for Live Modeling of Cyber-Physical Systems

Mon, 11 Nov 2019 00:00:00 +0000

https://ieeexplore.ieee.org/abstract/document/9065023

Detecting Sensors and Inferring their Relations at Level-0 in Industrial Cyber-Physical Systems

Tue, 05 Nov 2019 00:00:00 +0000

https://ieeexplore.ieee.org/abstract/document/9032891

Towards Native Execution of Deep Learning on a Leadership-Class HPC System

Mon, 20 May 2019 00:00:00 +0000

https://ieeexplore.ieee.org/abstract/document/8778212

Efficient reversible uniform and non-uniform random number generation in UNU.RAN

Sun, 01 Apr 2018 00:00:00 +0000

https://www.osti.gov/biblio/1468255

Scalable Cloning on Large-Scale GPU Platforms with Application to Time-Stepped Simulations on Grids

Wed, 31 Jan 2018 00:00:00 +0000

https://dl.acm.org/doi/abs/10.1145/3158669

Performance of Point and Range Queries for In-memory Databases Using Radix Trees on GPUs

Mon, 12 Dec 2016 00:00:00 +0000

https://ieeexplore.ieee.org/abstract/document/7828553

Model-based Dynamic Control of Speculative Forays in Parallel Computation

Sun, 30 Oct 2016 00:00:00 +0000

https://www.sciencedirect.com/science/article/pii/S1571066116300706

Model-based Dynamic Control of Speculative Forays in Parallel Computation

Fri, 01 Apr 2016 00:00:00 +0000

https://www.osti.gov/biblio/1408647

Efficient Parallel Discrete Event Simulation on Cloud/Virtual Machine Platforms

Thu, 01 Jan 2015 00:00:00 +0000

[Pub 149]

http://tomacs.acm.org/

Virtual Time-Aware Virtual Machine Systems

Tue, 01 Jul 2014 00:00:00 +0000

https://smartech.gatech.edu/bitstream/handle/1853/52321/YOGINATH-DISSERTATION-2014.pdf

Design of A High-Fidelity Testing Framework for Secure Electric Grid Control

Wed, 01 Jan 2014 00:00:00 +0000

[Pub 144]

http://wintersim.org

Towards Reversible Basic Linear Algebra Subprograms: A Performance Study

Wed, 01 Jan 2014 00:00:00 +0000

[Pub 145]

http://www.springer.com/series/8183

Virtual Machine-Based Simulation Platform For MANET-Based Cyber Infrastructure

Wed, 01 Jan 2014 00:00:00 +0000

[Pub 148]

http://www.scs.org/jdms

Empirical Evaluation of PDES Execution on Cloud and Virtual Machine Platforms

Tue, 01 Jan 2013 00:00:00 +0000

[Pub 135]

http://www.acm-sigsim-pads.org/

Optimized Hypervisor Scheduler for Parallel Discrete Event Simulations on Virtual Machine Platforms

Tue, 01 Jan 2013 00:00:00 +0000

[Pub 134]

http://simutools.org/2013

Runtime Performance And Virtual Network Control Alternatives In VM-Based High-Fidelity Network Simulations

Sun, 01 Jan 2012 00:00:00 +0000

[Pub 126]

http://www.wintersim.org

Taming Wild Horses: The Need for Virtual Time-based Scheduling of VMs in Network Simulations

Sun, 01 Jan 2012 00:00:00 +0000

[Pub 133]

http://mascots.cs.vt.edu

Towards Highly Interactive, GPU-based Evaluation of Evacuation Transport Scenarios at State-Scale

Sun, 01 Jan 2012 00:00:00 +0000

[Pub 111]

http://sim.sagepub.com/content/88/6/746

Efficiently Scheduling Multi-core Guest Virtual Machines on Multi-core Hosts in Network Simulation

Sat, 01 Jan 2011 00:00:00 +0000

[Pub 129]

http://sites.google.com/site/pads2011/

Towards High Performance Discrete Event Simulations of Smart Electric Grids

Sat, 01 Jan 2011 00:00:00 +0000

[Pub 130]

An Incremental Parallelization Approach Applied to the ORNL/NRC FAVOR Code

Fri, 01 Jan 2010 00:00:00 +0000

[Pub 124]

www.osti.gov

Towards Highly Interactive, GPU-based Evaluation of Evacuation Transport Scenarios at State-Scale

Fri, 01 Jan 2010 00:00:00 +0000

[Pub 106]

http://www.nationalevacuationconference.org

GPU-based Real-Time Execution of Vehicular Mobility Models in Large-Scale Road Network Scenarios

Thu, 01 Jan 2009 00:00:00 +0000

[Pub 100]

Reversible Discrete Event Formulation and Optimistic Parallel Execution of Vehicular Traffic Models

Thu, 01 Jan 2009 00:00:00 +0000

[Pub 7]

Parallel Vehicular Traffic Simulations using Reverse Computation-based Optimistic Execution

Tue, 01 Jan 2008 00:00:00 +0000

[Pub 26]