The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2022
Filed:
Nov. 26, 2019
International Business Machines Corporation, Armonk, NY (US);
William P. LePera, Wappingers Falls, NY (US);
Sameh Sherif Sharkawi, Cypress, TX (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A computer-implemented method and system for inter-processor communications fault handling in high performance computing networks. The method includes detecting that an InfiniBand (IB) queue pair has transitioned into an error state based on an unsuccessful completion status that relates to unsuccessful delivery of a message from an initiator endpoint at a first server device to at least one target endpoint at a second server device. The initiator and target endpoints are associated with at least one application under execution. An embodiment includes inferring, when the unsuccessful completion status is indicated as flushed, that the message was in a send queue of the IB queue pair when the IB queue pair transitioned into the error state. An embodiment includes establishing an IB Direct Connect queue pair connection between the target and initiator endpoints. An embodiment includes re-queueing the message in the IB queue pair for dispatch to the target endpoint.