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New Intel compiler gives AMD Athlon64 a boost

Last response: in CPUs
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January 26, 2004 10:42:21 PM

http://www.theinquirer.net/?article=13821


According to the magazine's own tests, a new Intel V8 compiler can give a boost to the performance of applications running on Intel platforms by between 5 and 10 per cent.

The chipmaker may be miffed to learn, however, that its compiler can help boost the same apps by a similar margin on rival AMD's Athlon64 platform, when suitably tweaked.

According to our correspondent, the compiler switch -QxN produces x86 code which runs only on P4 CPUs, not on AMD CPUs. However, the boffins at c't used the -QxN to produce code, patched out the CPU type inquiry and so managed to get the code to run on the Athlon64.

As a result the chip notched up a record-breaking Spec score.

According to the tests, under Windows, the P4 3200 gets a SPECint2000base value of 1286 while the Athlon64 3400+ scores 1404. Although, in SPECfp2000base, the P4 3200 scores 1257, against the Athlon64 3400+'s score of 1227.

Hmmm.

If I glanced at a spilt box of tooth picks on the floor, could I tell you how many are in the pile. Not a chance, But then again I don't have to buy my underware at Kmart.
January 27, 2004 1:46:21 AM

Wonder if it can be patched for the XP chips.
January 27, 2004 5:12:03 AM

ye si use 3d software compiled in the intel compiler.

i have been getting 200% render time reductions. form approx 10-15 mins rendertime per frame to 5-7 mins rendertime per frame. it is very significant for me as it can cut rendertimes down by weeks.

i don't know if its this particualr compiler, but yes it also gave similar gains to AMD. i think the one i was using was using the SEE2 or is it SSE2 (someone else compiled for me) instruction set which helps both intel and AMD.

Alltaken


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January 27, 2004 8:25:26 AM

5-7 minutes per frame?!!? Wow, i never knew that. Why does it take so long? If i sound a bit ignorant, it because I am when it comes to this topic :) 

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January 27, 2004 10:25:50 AM

He is most probably taking about ray-tracing software, like Maya and 3D Studio. Even on clusters of computers it can take several minutes to render a frame. But of course it's motion picture quality then...
January 27, 2004 1:45:26 PM

Intel dev. starts playing the nVidia/ATI game... "Optimize" their compiler only for their CPU to make sure AMD would not benefit from it.

Do AMD make compilers? If they do, are they good?

Because, I know that Intel Compilers are efficient.

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January 27, 2004 4:50:48 PM

ICC is a compiler improve performance for AMD and intel cpu.Each time a programme get recompile by intel own team AMD and intel get faster.

AMD dont have any software dev division.The main reason why there is no good AMD64 compiler there no big tean behind it.

I dont like french test
January 27, 2004 7:17:11 PM

It makes sense that this optimization is connected to SSE2 instructions which Intel and Athlon64 CPUs use, so I doubt it could be patched for XP, sry.

Got a nice overclocked overvolted system to keep you warm at night? That's great. Guess I'll have to settle for a woman...
January 28, 2004 5:43:35 AM

Re: Intel dev. starts playing the nVidia/ATI game... "Optimize" their compiler only for their CPU to make sure AMD would not benefit from it.
Do AMD make compilers? If they do, are they good?
Because, I know that Intel Compilers are efficient.


Re: Optimize" their compiler only for their CPU to make sure AMD would not benefit from it.

Well I would not expect Intel do do anything that would better a competitors CPU nor would I expect AMD to.

Re: Do AMD make compilers? If they do, are they good?

Yes AMD made 3dnow it was just as good as sse 1 but very little software took advantage of it (because of the lesser market share) I think amd has given up on that stuff and they will just copy intel. No use in making it if no software companies will take advantage of it.

Re: Because, I know that Intel Compilers are efficient.

Yup they sure are and great for the consummer but amd always follows through a couple years later and thats when the software is available to take advantage of it.


If I glanced at a spilt box of tooth picks on the floor, could I tell you how many are in the pile. Not a chance, But then again I don't have to buy my underware at Kmart.
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