Traleika Glacier

Traleika Glacier X-Stack


Team Members	Intel, Reservoir Labs, ETI, UDEL, UC San Diego, Rice U., UIUC, PNNL
PI	Shekhar Borkar (Intel)
Co-PIs	Wilf Pinfold (Intel), Richard Lethin (Reservoir Labs), Laura Carrington (UC San Diego), Vivek Sarkar (Rice U.), David Padua (UIUC), Josep Torrellas (UIUC), Andres Marquez (PNNL)
Website	https://xstack.exascale-tech.com/wiki/index.php/Main_Page
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Team Members

Intel: Shekhar Borkar (PI); Hardware guidance, HW/SW co-design, resiliency, technical management
Reservoir Labs: Richard Lethin (PI); Programming system, R-Stream, tools, optimization
University of California, San Diego (UC San Diego): Laura Carrington (PI); Applications
Rice University: Vivek Sarkar (PI); Programming system, runtime system
University of Illinois at Urbana-Champaign (UIUC): David Padua, Josep Torrellas (PIs); Programming system, Hierarchical Tiles Arrays (HTA), architecture, system architecture evaluation
Pacific Northwest National Laboratory (PNNL): Andres Marquez (PI); Kernels and proxy apps for evaluation

Goals and Objectives

Goal: The Traleika Glacier X-Stack program will develop X-Stack software components in close collaboration with application specialists at the DOE co-design centers and with the best available knowledge of the Exascale systems we anticipate will be available in 2018/2020.

Description: Intel has built a straw-man hardware platform that embodies potential technology solutions to well understood challenges. This straw-man is implemented in the form of a simulator that will be used as a tool to test software components under investigation by Traleika team members. Co-design will be achieved by developing representative application components that stress software components and platform technologies and then use these stress tests to refine platform and software elements iteratively to an optimum solution. All software and simulator components will be developed in open source facilitating open cross team collaboration. The interface between the software components and the simulator will be built to facilitate back end replacement with current production architectures (MIC and Xeon) providing a broadly available software development vehicle and facilitating the integration of new tools and compilers conceived and developed under this proposal with existing environments like MPI, OpenMP, and OpenCL.

The Traleika Glacier X-Stack team brings together strong technical expertise from across the exascale software stack. Utilizing applications of high interest to the DoE from five National Labs, coupled with software systems expertise from Reservoir Labs, ET International, the University of Illinois, University of California San Diego, University of Delaware, and Rice University, using a foundation of platform excellence from Intel. This project builds collaboration between many of the partners making this team uniquely capable of rapid progress. The research is not only expected to further the art in system software for high performance computing but also provide invaluable feedback thru the co-design loop for hardware design and application development. By breaking down research and development barriers between layers in the solution stack this collaboration and the open tools it produces will spur innovation for the next generation of high performance computing systems.

Objectives:

Energy efficiency: SW components interoperate, harmonize, exploit HW features, and optimize the system for energy efficiency
Data locality: PGM system & system SW optimize to reduce data movement
Scalability: SW components scalable, portable to O(109)—extreme parallelism
Programmability: New (Asychronous) & legacy (MPI+OpenMP), with gentle slope for productivity
Execution model: Objective function based, dynamic, global system optimization
Self-awareness: Dynamically respond to changing conditions and demands
Resiliency: Asymptotically provide reliability of N-modular redundancy using HW/SW co-design; HW detection, SW correction

Status Reports

Traleika Glacier X-Stack Highlights, April 1, 2014
Traleika Glacier X-Stack Status Review, March 25, 2014
Traleika Glacier Year 2 Interim Status Report, March 12, 2014
Traleika Glacier Year 2 Progress Report, May 30, 2014
Traleika Glacier Milestone 8 Report, September 1, 2014
Traleika Glacier Milestone 9 Report, December 8, 2014
Traleika Glacier Milestone 10 Report, March 2, 2015
Traleika Glacier Milestone 11 Report, June 2, 2014

Meetings and Presentations

Weekly Extreme Scale Deep-Dive: Schedule and Archive

Weekly Technical Review Meeting (Tuesdays, 10-12 Pacific Time)

Co-Design Workshops (Newest to Oldest)