IEEE Says Multicore is Bad News For Supercomputers

That is to be expected.

The multi-core processors are cheap per processor for the CPU makers.

For a huge bank of interconnected multi-core processors to work efficiently, the problem is all the interconnections and timings.

On-board CPU cache would have to be greatly increased too.

The resultant assembly would be less efficient that the easier connected single-core CPU's.

Kind Regards....

So true, bus speed has always has lagged behind the processors ability to handle data.

Many processors in one package will need a very over sized bus with plenty of memory to handle all the cross talk and IO that parallel processing needs to be efficient.

I help to build several of the large military multi processor Computers in the mid 90's

Brad