[gmx-developers] Benchmark Results Clarification

[David van der Spoel]

On Thu, 2003-08-07 at 15:16, Josh Hursey wrote:
> Do you know what core the P III's were using?
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 3
cpu MHz         : 801.833
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov
pat pse36 mmx fxsr sse
bogomips        : 1599.07
 




> 
> Josh Hursey
> 
> On Thu, 7 Aug 2003, David wrote:
> 
> > On Wed, 2003-08-06 at 23:27, Josh Hursey wrote:
> > > I am working with a research group attempting to replicate the
> > > (normalized versions) of you results posed on the gromacs site. We are
> > > falling short of the ps/day that you have posted.
> > >
> > > To ensure that we are running a close setup to the environment in which
> > > your tests were ran, Could you provide us with some additional information
> > > that I could not find on the website.
> > >
> > > We are running:
> > >   Cluster 1:
> > >     Dual Pentium III (Katmai) 497 MHz 512 KB L2 Cache
> > >     512 MB S-DRAM
> > >     100 MB Switched environment
> > >     Linux version 2.4.7-10smp
> > >     gcc version 2.96
> > >     Red Hat Linux 7.1 2.96-98
> > >   Cluster 2:
> > >     Dual PowerPC G4 7455, altivec supported 999MHz 256K L2 cache
> > >     2 MB at 4 GBps
> > >     1 GB DDR SDRAM
> > >     1 GB switched Environment
> > >     Linux version 2.4.20-8d
> > >     gcc version 3.2.2
> > >     Yellow Dog Linux 3.0 3.2.2-2a
> > >
> > > 1) What FFTW configuration options were used on the install?
> > Nothing special, except the i386 tweaks and single precision
> >
> > >
> > > 2) What Gromacs compiler options were used on the install?
> > >
> > all default as generated by the configure script
> >
> >
> > > 3) What hardware/networking environment were the benchmarks ran under?
> > >
> > Different ones, but there are results for 100 Mb/s switched system too
> > We used LAM 6.x for MPI where a few extra flags were used for compiling
> > -tcp-short-message=500000 -shm-short-message=500000 -usysv
> > (check for exact syntax).
> >
> > > 4) Are the MPI tests ran so that a MPI run with 2 processes are run on one
> > > dual processor node or on 2 different nodes?
> > >    (e.g.
> > >      2 processes = 1 node with 2 processors
> > Yes
> >
> > >      or
> > >      2 processes = 2 nodes with 2 processors
> > >    )
> > >
> > > Thank you for your help!
> > >
> > Furthermore check in the output from your jobs whether the SSE routines
> > are used on your Pentium 3.
> >
> > > Peace,
> > >
> > > Josh Hursey
> > > Earlham College
> > >
> > > _______________________________________________
> > > gmx-developers mailing list
> > > gmx-developers at gromacs.org
> > > http://www.gromacs.org/mailman/listinfo/gmx-developers
> > > Please don't post (un)subscribe requests to the list. Use the
> > > www interface or send it to gmx-developers-request at gromacs.org.
> > --
> > Groeten, David.
> > ________________________________________________________________________
> > Dr. David van der Spoel, 	Dept. of Cell and Molecular Biology
> > Husargatan 3, Box 596,  	75124 Uppsala, Sweden
> > phone:	46 18 471 4205		fax: 46 18 511 755
> > spoel at xray.bmc.uu.se	spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > _______________________________________________
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> >
> _______________________________________________
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-- 
Groeten, David.
________________________________________________________________________
Dr. David van der Spoel, 	Dept. of Cell & Mol. Biology
Husargatan 3, Box 596,  	75124 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
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