Locating hardware faults in a data communications network of a parallel computer
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United States of America Patent
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Jan 12, 2010
Grant Date -
Oct 18, 2007
app pub date -
Apr 13, 2006
filing date -
Apr 13, 2006
priority date (Note) -
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Abstract
Hardware faults location in a data communications network of a parallel computer. Such a parallel computer includes a plurality of compute nodes and a data communications network that couples the compute nodes for data communications and organizes the compute node as a tree. Locating hardware faults includes identifying a next compute node as a parent node and a root of a parent test tree, identifying for each child compute node of the parent node a child test tree having the child compute node as root, running a same test suite on the parent test tree and each child test tree, and identifying the parent compute node as having a defective link connected from the parent compute node to a child compute node if the test suite fails on the parent test tree and succeeds on all the child test trees.
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