Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-18 Thread Jussi Lehtola
On Thu, 2008-12-18 at 21:23 +0530, Manik Mayur wrote: > I am not sure that mdrun_mpi or for that matter mdrun with options -np > 2 -multi 1 (I have a core 2 duo machine) is actually running the > process parallely, as the estimated time for completion for a > simulation is the same as without. You

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-18 Thread Manik Mayur
I am not sure that mdrun_mpi or for that matter mdrun with options -np 2 -multi 1 (I have a core 2 duo machine) is actually running the process parallely, as the estimated time for completion for a simulation is the same as without. I have built open-mpi library, so do I have to make some changes

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Jussi Lehtola
On Thu, 2008-12-18 at 01:03 +0530, Chitrita Dutta Roy wrote: > Can anyone give me a detailed notes on how to install gromacs 4 with > mpi feature..I am using Intel Q9300 and fedora 10.It's very urgent as > i am new to using gromacs plz give me as detailed note as possible.. Just install using yum:

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Mark Abraham
Hi, Please don't "top post", particularly when responding to multiple topics in one email, as it makes it hard for people to understand the context of your remarks. A better approach is to insert new paragraphs after the text you refer to. You can also appear to be a more credible source of g

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Venkat Reddy
U just have to modify the .top file, Just add the line "Na+ 2" at the bottom of the file where u can find "SOL "and also u have to substract 2 from the SOL number. Thats it. Regarding MPI, if u r using MULTIPLE MACHINESthen MPI is useful otherwise , if u r using single machine wit

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Justin A. Lemkul
From genion -h: "genion replaces solvent molecules by monoatomic ions at the position of the first atoms with the most favorable electrostatic potential or at random." That would explain how genion works, and what you must do to update the topology correctly. If you have added 2 NA+, then you

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Chitrita Dutta Roy
What exactly Do we need to change in the topology file suppose if we add 2 NA+ ions in the system..??? On Thu, Dec 18, 2008 at 1:45 AM, Justin A. Lemkul wrote: > > > Chitrita Dutta Roy wrote: > >> Can anyone give me a detailed notes on how to install gromacs 4 with mpi >> feature..I am using Int

Re: [gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Justin A. Lemkul
Chitrita Dutta Roy wrote: Can anyone give me a detailed notes on how to install gromacs 4 with mpi feature..I am using Intel Q9300 and fedora 10.It's very urgent as i am new to using gromacs plz give me as detailed note as possible.. Installation instructions are on the Gromacs webpage and

[gmx-users] Gromacs 4 with mpi interface

2008-12-17 Thread Chitrita Dutta Roy
Can anyone give me a detailed notes on how to install gromacs 4 with mpi feature..I am using Intel Q9300 and fedora 10.It's very urgent as i am new to using gromacs plz give me as detailed note as possible.. And after adding some ions using genion when i try to run grompp again before final mdrun