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<DIV><FONT size=2>Dear WIEN users:</FONT></DIV>
<DIV><FONT size=2> I get some strange benchmark results with a new
computer (Intel Core i5 750 2.67GHz, 8 GB DDR3 1333 RAM) in our lab. I installed
WIEN2k_09.1 with ifort 11.1 and mkl 10.0, set NMATMAX=20000
and OMP_NUM_THREADS=1, ran serial benchmark and the result is
"80.522u 0.724s 1:21.26 99.9%", faster than the results of i7-920 is 99
seconds(NMAT=3481,1 thread) on the benchmark page. When I set NMATMAX=3481 on my
computer and recompile lapw1, the result is "32.006u 0.513s 0:32.65 99.5%" with
OMP_NUM_THREADS=1, and "34.578u 1.179s 0:20.16 177.2%" with OMP_NUM_THREADS=2,
and "44.262u 1.281s 0:15.50 293.8%" with OMP_NUM_THREADS=4. I can't understand
how could i5-750 run so fast. My compile options are:</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>FOPT:-FR -mp1 -w -prec_div -pc80 -pad -align -DINTEL_VML
-traceback<BR>FPOPT:$(FOPT)<BR>LDFLAGS:$(FOPT)
-L/opt/intel/mkl/10.0.5.025/lib/em64t
-pthread<BR>DPARALLEL:'-DParallel'<BR>R_LIBS:-lmkl_lapack -lmkl
-liomp5<BR>RP_LIBS:-lmkl -lmkl_lapack -lmkl_intel_lp64 -lmkl_scalapack_lp64
-lmkl_blacs_lp64 -lmkl_sequential -lguide -L /opt/local/fftw/lib/ -lfftw_mpi
-lfftw</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> In additional, I get a serial benchmark result on
another computer(Intel Core2 Q9400 2.67GHz, 8 GB DDR2 800 RAM) is 125 seconds
with OMP_NUM_THREADS=1, NMATMAX=13000, ifort 9.1 and mkl
10.0</FONT></DIV></FONT></DIV></BODY></HTML>