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Fasnicating. When I first saw your link, my first thought was, "what does a graphics card have to do with the price of TCP/IP in china?" But then I started reading, and this thing is talking about "Enterprise Class Networking" :eek: http://www.nvidia.com/object/feature_network.html So now I am really confused. Is this thing, nForce3, a graphics card, or some sort of chipset used on NICs and graphics cards? I can't make heads or tails of what this article is trying to tell me. Either way, thanks for the link... nitro
I mean the memory footprint of the code which is your processing bottleneck (inner loop). If this code is using 99% of CPU while mostly accessing less than 512KB of memory, then any cache larger than 512KB won't give you much improvement. Smaller caches would definitely reduce performance. Even though your program accesses several GB of memory over long intervals, over short intervals it uses much less, often with definite patterns which can be optimized for reuse. Cache optimization can be dramatic. I recently wrote some backtesting code that benchmarks at 100M ES ticks / second on a single 2.8 GHz P4 processor. Before optimization for locality this code ran about 20 times slower. Try these for more info: http://engineering.dartmouth.edu/~engs116/lectures/engs 116 lecture 13-03f.ppt http://www.gdconf.com/archives/2003/Ericson_Christer.ppt
the motherboard manufacturers license the chips - but it looks like nvidia teamed up with amd to make sure the two where compatible at 64 and 32 bits heres a list of motherboards with nforce chip sets http://www.nvidia.com/object/motherboards.html the propaganda from nvidia The NVIDIA nForce3 MCPs complement the newest AMD 64-bit processors, providing optimized operation in all three modes. System designers can take advantage of the AMD-NVIDIA combination today to build optimized 32-bit compatible systems that also get the most out of 64-bit operating systems and applications. features of nforce3 chips http://www.nvidia.com/page/pg_20030917982606.html
speaking of amd 64 - the new unreal tournament 2004 will have a 64 bit amd linux dedicated server port. well im off to play the demo