how same random seeds can be used in rosetta for mpi run.

Member Site Forums Rosetta 3 Rosetta 3 – General how same random seeds can be used in rosetta for mpi run.

  • This topic has 1 reply, 2 voices, and was last updated 15 years ago by Anonymous.
Viewing 1 reply thread
  • Author
    Posts
    • #383
      Anonymous

        Hello:

        As we know that Rosetta has different result on each run. Sometimes I would like to know the effect of some parameters from options and use same random seeds to see the changes in the result. But, I want to do same things on mpi run. If someone knows about it, please share me. I would deeply appreciate on it.

        Regards,

        Exchhattu

      • #4251
        Anonymous

          The flag -constant_seed allows use of a set RNG seed (the default is 1111111 or something similar).

          The flag -jran allows you to pick a number for the RNG seed (-jran 429682, for example).

          With MPI, the head node gets the seed specified by jran, and other processors get jran + their MPI rank. This ensures they all have independent trajectories, but also means you know which seed they started with.

      Viewing 1 reply thread
      • You must be logged in to reply to this topic.