[gmx-users] RAM memory
zazeri at yahoo.com.br
Wed Feb 13 02:25:11 CET 2008
Im working with membrane-peptide simulations of
~30,000 atoms. The box features are 2 quad-core
processors 2.00 GHz, 2x6MB Cache L2 and 1333 MHz FSB.
As I said, I read an E. Lindahls presentation from
Gromacs Workshop 2007 Talks. That says Gromacs
normally uses 256MB to 1GB per process, depending on
the system, so I believe 4GB are enough for my
purposes. At same time, Lindahl says 8GB is
recommended to dual quad-core.... The real problem is
the cost to duplicate the amount of memory. However,
Im gonna pay (literally) to see! :)
--- Mark Abraham <Mark.Abraham at anu.edu.au> escreveu:
> zazeri wrote:
> > Are 4GB of RAM memory enough to run the gromacs
> > the maximum performance in a computer with dual
> > quad-core processors? If the performance is
> > is the decreasing significant?
> > I´ve read in somewhere Erik Lindahl suggesting
> It depends how big your simulation systems will be.
> Cache size, number
> of cache levels and bus speed can all also be
> factors in memory-latency
> issues. Any other load on the machine will also be
> an issue. Thus it's
> hard to give even a vague answer on the above
> information. The only real
> test is to get the hardware and try it. If you're
> possibly buying lots
> of boxes, a vendor might let you have a trial.
> gmx-users mailing list gmx-users at gromacs.org
> Please search the archive at
> http://www.gromacs.org/search before posting!
> Please don't post (un)subscribe requests to the
> list. Use the
> www interface or send it to
> gmx-users-request at gromacs.org.
> Can't post? Read
Abra sua conta no Yahoo! Mail, o único sem limite de espaço para armazenamento!
More information about the gromacs.org_gmx-users