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Grid start-up Univa names new CEO

Michael Ellis becomes chief executive of the company, while former CEO Steve Tuecke now is chief technology officer.

Univa, a company trying to commercialize supercomputing software for pooling the resources of many computers, announced Monday that Michael Ellis is its new chief executive. He most recently was managing director of a consulting firm, Ellis Management Group, and before that was a senior vice president at i2 Technologies.

Co-founder and former CEO Steve Tuecke now is chief technology officer. The Chicago-based start-up has a