[Math-atlas-results] strange results for Athlon XP1800+

[Mikhail K. <ku...@fr...>]

1)`   I've installed atlas-3.4.1 under Linux RH 7.2 for Athlon XP 1800+
on Tyan S2460 2-CPUs SMP motherboard w/using of gcc-3.1.
(I do this because pre-built Athlon libraries do not
includes multi-threaded libraries)

   But the result of installation looks something strange:
/ATLAS/include/Linux_ATHLONSSE1_II/cacheedge.h was set to
98304 ! But it's known that recommended optimal value must be
217088 !       

make xdfindce says that all is "up-to date" and don't change 
cacheedge.h value :-(

What should I do in this strange situation ?

2) On pre-built Atlas 3.4.1 for ATHLON (I used ifc 5.0, and
add at the linking g77 run-time library to resolve the references
existing in pre-built for g77 libraries, and simple force
to suppress some ld errors, and as a result executable
module works successfully) I received on Linpack n=1000
(w/call of LAPACK Atlas routines) more than 1.5 GFLOPS.
( > 1 FLOP per cycle)

Is it possible taking into account that dFPU test under
installation of atlas 3.4.1 says that "Separate multiply and add
instruction w/3 cycle pipeline" gives 1670 MFLOPS max
(it's known that in Linpack test daxpy must be limiting) ?

Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow