Hello Mark, I had gone through the page. Not finding any solution there.
My architecture is: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 16 On-line CPU(s) list: 0-15 Thread(s) per core: 1 Core(s) per socket: 8 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 45 Stepping: 7 CPU MHz: 2593.616 BogoMIPS: 5186.82 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 20480K NUMA node0 CPU(s): 0-7 NUMA node1 CPU(s): 8-15 When i put "mpirun -np 64 gmx_mpi mdrun -v -deffnm npt" it just runs on a single node using 64 threads (16 availavle for a single node normally). How am I supposed to do node distribution efficiently ? I'm trying to run the job using 4 nodes and 16 threads. A little suggestion would be highly appreciated. On Fri, Dec 2, 2016 at 4:55 PM, Mark Abraham <mark.j.abra...@gmail.com> wrote: > Hi, > > Please check out > http://manual.gromacs.org/documentation/2016.1/user- > guide/mdrun-performance.html. > Your first sample command is woefully inefficient, but for em this likely > doesn't matter. > > Mark > > On Fri, 2 Dec 2016 09:01 abhisek Mondal <abhisek.m...@gmail.com> wrote: > > > But if I want to run the same job in 4 nodes (available cores= 4*16) then > > how would this work ? > > > > On Fri, Dec 2, 2016 at 2:20 PM, <jkrie...@mrc-lmb.cam.ac.uk> wrote: > > > > > Hi Abhisek, > > > > > > You would need to use another version of gromacs with mpi rather than > > > thread-mpi (installed by adding DGMX_MPI=ON to the cmake command). You > > > could then use the following command > > > > > > mpirun -np 4 gmx_mpi mdrun -ntomp 16 -npme 0 -v -deffnm em > > > > > > I'm not sure why you are specifying -npme 0 but would suggest you don't > > do > > > this and instead let the number of separate pme ranks be set > > > automatically. > > > > > > Best wishes > > > James > > > > > > > Hi, > > > > > > > > I'm running gromacs on a cluster configuration as follows: > > > > 1 node = 16 cores > > > > > > > > I'm able to use single node with "gmx mdrun -ntmpi 4 -ntomp 16 -npme > 0 > > -v > > > > -deffnm em" command. > > > > > > > > How can I be able to run on multiple node (I have 20 nodes > available) ? > > > > "-nt" is not doing good here. > > > > > > > > > > > > > > > > -- > > > > Abhisek Mondal > > > > > > > > *Research Fellow* > > > > > > > > *Structural Biology and Bioinformatics Division* > > > > *CSIR-Indian Institute of Chemical Biology* > > > > > > > > *Kolkata 700032* > > > > > > > > *INDIA* > > > > -- > > > > Gromacs Users mailing list > > > > > > > > * Please search the archive at > > > > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before > > > > posting! > > > > > > > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > > > > > > > * For (un)subscribe requests visit > > > > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users > or > > > send > > > > a mail to gmx-users-requ...@gromacs.org. > > > > > > > > > > > > > -- > > > Gromacs Users mailing list > > > > > > * Please search the archive at http://www.gromacs.org/ > > > Support/Mailing_Lists/GMX-Users_List before posting! > > > > > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > > > > > * For (un)subscribe requests visit > > > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > > > send a mail to gmx-users-requ...@gromacs.org. > > > > > > > > > > > -- > > Abhisek Mondal > > > > *Research Fellow* > > > > *Structural Biology and Bioinformatics Division* > > *CSIR-Indian Institute of Chemical Biology* > > > > *Kolkata 700032* > > > > *INDIA* > > -- > > Gromacs Users mailing list > > > > * Please search the archive at > > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before > > posting! > > > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > > > * For (un)subscribe requests visit > > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > > send a mail to gmx-users-requ...@gromacs.org. > > > -- > Gromacs Users mailing list > > * Please search the archive at http://www.gromacs.org/ > Support/Mailing_Lists/GMX-Users_List before posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Abhisek Mondal *Research Fellow* *Structural Biology and Bioinformatics Division* *CSIR-Indian Institute of Chemical Biology* *Kolkata 700032* *INDIA* -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.