Google yesterday bought Peakstream, a California-based developer of software for multicore and parallel processors.

Google declined to disclose terms of the deal, spokesman Aaron Zamost said by email.

Peakstream's flagship product, PeakStream Workstation for Microsoft Windows, was released in beta in March. Peakstream's website was not available following the acquisition.

A version of its product page cached on Google's website described PeakStream Workstation for Microsoft Windows as the first commercial software product to allow programming of multicore and parallel processors, allowing optimisation of these increasingly prevalent chipsets.

Peakstream was founded in 2005 by executives from Sun Microsystems, Nvidia, VMWare, and Network Appliance. In September 2006 Peakstream raised US$17 million in funding.

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