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Title: Clock Agreement Among Parallel Supercomputer Nodes

This dataset presents measurements that quantify the clock synchronization time-agreement characteristics among several high performance computers including the current world's most powerful machine for open science, the U.S. Department of Energy's Titan machine sited at Oak Ridge National Laboratory. These ultra-fast machines derive much of their computational capability from extreme node counts (over 18000 nodes in the case of the Titan machine). Time-agreement is commonly utilized by parallel programming applications and tools, distributed programming application and tools, and system software. Our time-agreement measurements detail the degree of time variance between nodes and how that variance changes over time. The dataset includes empirical measurements and the accompanying spreadsheets.
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
Data Type:
Numeric Data
Research Org:
ORNL-OLCF (Oak Ridge Leadership Computing Facility, Oak Ridge National Laboratory, Oak Ridge, TN)
Sponsoring Org:
USDOE Office of Science (SC)
Contributing Orgs:
Oak Ridge National Laboratory (ORNL)
Country of Publication:
United States
97 MATHEMATICS AND COMPUTING Clock Agreement; Clock Synchronization; Time Service; Supercomputing; Empirical Measurements