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To: fingolfen who wrote (132570)	4/17/2001 12:26:03 PM
From: Scumbria	Read Replies (3) \| Respond to of 186894

Fin, Intel offers FORTRAN and C++ compilers which automatically add SSE2 optimizations to software... Are you aware of any commercial software house using the Intel compiler? given that DDR and RDRAM are at roughly the same price point Not even close, and P4 requires dual channel. Scumbria

To: fingolfen who wrote (132570)	4/17/2001 3:05:12 PM
From: fp_scientist	Read Replies (3) \| Respond to of 186894

Fingolfen, Re: Intel offers FORTRAN and C++ compilers which automatically add SSE2 optimizations to software... Could you please provide a link? I am interested in buying one of these ... but I have not found them. I bought a 1.5GHz Pentium 4 from Dell last week and it runs my applications (floating point double precision) at a great speed, just a fraction of a much more expensive IBM Power3 370MHz (which is 4X more expensive), and faster than 1.3GHz Athlon DDR. My compiler does not use SSE2, just SSE, and I expect another 20% improvement (or more) from SSE2. The Pentium 4 is a great chip for intensive FP scientific applications. I am afraid that these are not representative of the PC "mainstream." fp

To: fingolfen who wrote (132570)	4/18/2001 3:29:01 AM
From: Joe NYC	Respond to of 186894

Fin, Intel offers FORTRAN and C++ compilers which automatically add SSE2 optimizations to software... I think you are overestimating the importance of SSE2. In most situations it doesn't do anything. It is just not applicable. Mainly, in Windows code and in code to Windows APIs and windows DLLs. There will be no SSE2 in those (except possibly in display related drivers) and there would be hardly any benefit. What P4 needs to overcome the performance disadvantage is to have clock speed that is at least 50% higher than Athlon. Right now, it would be about 2 GHz to beat 1.33 GHz Athlon. and given that DDR and RDRAM are at roughly the same price point now, it's a moot point. Is 100% more expensive roughly the same? Joe