IBM Adds Videogame Console Chips to Mainframes

GoIBMPS3 writes "Soon the powerful 'Cell' microprocessor that fuels Sony's PlayStation 3 console will be available in IBM mainframe computers. The intent is to allow high-performance machines to run complex online games and virtual worlds. 'The integration initially will be accomplished by networking the mainframe with IBM's Cell blades, but eventually the Cells will be plugged more directly into the mainframes via PCI adapter cards, IBM said. It's the latest twist in IBM's years-long effort to keep mainframes not only relevant but also cutting-edge. IBM is touting the partnership as an example of hybrid computing--a trend sweeping the high-performance computing industry as companies augment general-purpose servers with special-purpose chips that to accelerate particular tasks.'"

Comments

CELL isn't a video game processor!

[Theovon]

IBM isn't the first or last to come up with the idea behind the CELL processor. With the advent of programmable shaders, the GPU industry was headed that way like a freight train. When people started using these highly pipelined, highly parallel SIMD stream processors that we know as GPUs to do supercomputing, people with a clue took notice and decided that it would be sensible to strip out the video components and generalize the compute engine. However, this kind of compute engine only works well for stream processing, requiring some kind of general-purpose CPU to supervise. And this is exactly what the CELL processor is: A PowerPC supervising the operation of an array of stream processors.

So, while the CELL is inspired by GPU design, I think it would be more appropriate to say that CELL is a supercomputing architecture that, being what it is, is also highly suitable for graphics applications. As such, I think what the slashdot article says is silly. What IBM is doing is putting a supercomputing architecture into a mainframe. This isn't weird. It's sensible and a wise move, technically and competitively.

Re:CELL isn't a video game processor!

[SnowZero]

That's not a particularly accurate characterization. GPUs are very wide, shared memory multiprocessors, while the Cell is a somewhat wide local memory multiprocessor. That is why the Playstation still needs a GPU; The Cell isn't really the best type of processor for current graphics approaches. The Cell design was started quite some time ago (new CPU architectures are not designed overnight), so I don't think it would be accurate to say the Cell is inspired by modern GPU design. Rather, it would be more accurate to say both were inspired by DSPs, which have been used for signal processing tasks for decades.

Also, I don't think I'd use the word "supercomputing" to describe the distributed signal processing for which GPUs are now being used. GPUs won't be used on "real" supercomputers until they decide to implement proper 64-bit IEEE 754 (floating point) support. In that sense, the Cell is more immediately useful for HPC, and along with IBMs presence in that area, you'll see a supercomputer using Cell chips first.

Re:mainframs are perfect for MMORPGs

[blincoln]

You can create new servers on the fly,
Really high performance
Easily scalable,
and virtual worlds will never go down for any reason outside the code.

Don't forget these added bonuses:

So expensive you could buy an entire data center's worth of x86 servers instead of leasing a single mainframe for a year.
Requires members of the dwindling cult of mainframe experts to administer.