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To: fyodor_ who wrote (133100)	4/22/2001 1:48:16 PM
From: fp_scientist	Read Replies (2) \| Respond to of 186894

Fyo, Have you by any chance tried your stuff on a SDR Athlon? If so, how did that compare to the DDR Athlon? Not yet, but I have access to an Athlon 1.2GHz with PC100 SDR that I can compare with the 1.33GHz PC133 DDR. you should try and get your hands on an Intel compiler. My own experiences with them aren't too hot My previous experiences were not that great either. But this was under Windows. I hope the yet-to-be-released FORTRAN compiler under Linux will be more robust. I mean, my application is huge (more than 500K lines of FORTRAN) and the key issue in FORTRAN is optimization. This is were IBM, DEC, HP, SGI, etc, FORTRAN compilers have huge advantages. Specialized scientific libraries do not hurt either. the use of SSE2 added only around 5% to the P4s SPECfp scores (but then SPECfp is _very_ bandwidth sensitive). I agree. In my case, it all depends whether SSE2 can be used efficiently in libraries for matrix multiplication, and things like that. Let me put my stuff in context. I have been a heavy user of all kinds of supercomputers and workstations in the past. In the last 3 years or so, a revolution in scientific computing started when people like myself started building clusters of PCs for floating-point numerically intensive computing. It is a niche in the overall computer market (my guesstimate is a couple of hundred million dollars a year) ... but PCs have brought down the prices of scientific workstations from IBM, Compaq (DEC), HP, tremendously! It is a good thing. Too bad Merced has not made it yet. 64 bit will help us tremendously. So, it is only going to get more interesting when the AMD Hammers arrive. Regards, fp