NVIDIA has it changed the management technology of physics effects PhysX so that it draws only partly advantage of multi-core processors in order to enhance the attractiveness of its own graphics cards? It is assumed that defends Richard Huddy, in charge of developer relations at AMD. In an interview granted to Bit-Tech, he in effect accuses the manufacturer of GeForce of deliberately undermined support for physics calculations by processors with more than two cores, which he said was much better when technology was still PhysX developed by Ageia, its intiateur, acquired by NVIDIA in early 2008. Explicitly challenged by its competitor, NVIDIA denies these allegations.
"When they bought Ageia, they had a very correct implementation of the Multi-in PhysX. If you look now, you'll see it uses essentially a heart, or at best two. That damn petty, "says Richard Huddy. "It's much the same thing that the old trick overstaffed with Intel's compiler [supposed disadvantage competing processors, editor's note]; NVIDIA has just removed all the optimizations for multicore PhysX, says he yet. In doing so, NVIDIA enhance the salability of its graphics cards, which do not evoke the same interest if all tests showed that a processor does as well or better management of physical effects.
The development kit associated with PhysX is designed so that the management process is determined by the application developer, not by the functions of the SDK itself, refutes Nadeem Mohammad, product manager at NVIDIA, on the One of the blogs from the manufacturer. "One of the best examples is 3DMarkVantage, which can use 12 processes when running in software rendering PhysX. Anyone who has a multicore processor and a GeForce PhysX compatible can easily verify. The level of support for multicore and method of programming has not changed since day one, "says he again.
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