International Business Machines Corporation

Ronald P Checca

Gerard M Salem

Marvin J Rich

Craig R Selinger

William K Mellors

Matthew Edward Aubertine

Michael Herasimtschuk

Soon I Joe

Harold J Broker

Michael A Granato

Kianoush Beyzavi

David A Haeussler

Michael J Jurkovic

Paul R Zehr

At least a portion of the administrative responsibilities of one license server is transferred from the one license server to one or more other license servers. These responsibilities include the management of software licenses. This transfer is performed dynamically, such that vendor authorization, at the time of the transfer, is not needed. Further, the transfer of the administrative capabilities can occur prior to the expiration of the licenses being administered.

Dynamically transferring license administrative responsibilities from a license server to one or more other license servers

A method is provided to assign component I/O (input/output, the interface area between levels of physical packaging) pins for all components at each level of the computer system. In a hierarchical, top-down design methodology, the I/O pins for each computer system component are assigned to nets (a net is an interconnection of pins on a level of packaging, or between levels of packaging) based on wire length, electrical limits and timing. Parameters that are considered are net priority (the importance of this net to the system, relative to other nets in the system), location of physical components, location of physical component I/Os at all computer system levels of physical packaging hierarchy, and I/O pin characteristics. An iterative method is used to assign and reassign I/O pins at each level based on timing. As I/Os are reassigned at each lower component level, new assignments are made at all higher levels of the system packaging hierarchy based on the changed parameters at the lower level. I/Os assignment by this method for a computer system package design reduces the occurance of any critical nets failing length, electrical or timing constraints due to poor I/O assignments. The method has built in checks to avoid being trapped in an NP complete situation (a form of endless loop).

Method of I/O pin assignment in a hierarchial packaging system

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Lagrangeville, NY, United States of America

Ronald P Checca