pyMPI error on mpi.barrier
Hello there I am trying to paralleize GA code using pyMPI. part of the code and and the error message is as below. i write the new positions in a file by root (which is mpi.rank = 0) then other processes are suppose to wait until the written in the file finishes to start evaluating the objective. the problem arises in the barrier method... any ideas on how to do this would be very much appreciated.. for i in xrange(max_iter): if (mpi.rank == 0): update_positions() save_GA_pops_iter() mpi.barrier() error is here evaluate_objective() mpi.barrier() error message: mpi.barrier() mpi.MPIError: MPI_Error_string: invalid communicator: Input/output error (pyMPI_comm_io.c:367) Thanks very much Dina -- http://mail.python.org/mailman/listinfo/python-list
pyMPI error on mpi.barrier
Hello there I am trying to paralleize GA code using pyMPI. part of the code and and the error message is as below. i write the new positions in a file by root (which is mpi.rank = 0) then other processes are suppose to wait until the written in the file finishes to start evaluating the objective. the problem arises in the barrier method... any ideas on how to do this would be very much appreciated.. for i in xrange(max_iter): if (mpi.rank == 0): update_positions() save_GA_pops_iter() mpi.barrier() error is here evaluate_objective() mpi.barrier() error message: mpi.barrier() mpi.MPIError: MPI_Error_string: invalid communicator: Input/output error (pyMPI_comm_io.c:367) Thanks very much Dina -- http://mail.python.org/mailman/listinfo/python-list
pyMPI error on mpi.barrier
Hello there I am trying to paralleize GA code using pyMPI. part of the code and and the error message is as below. i write the new positions in a file by root (which is mpi.rank = 0) then other processes are suppose to wait until the written in the file finishes to start evaluating the objective. the problem arises in the barrier method... any ideas on how to do this would be very much appreciated.. for i in xrange(max_iter): if (mpi.rank == 0): update_positions() save_GA_pops_iter() mpi.barrier() error is here evaluate_objective() mpi.barrier() error message: mpi.barrier() mpi.MPIError: MPI_Error_string: invalid communicator: Input/output error (pyMPI_comm_io.c:367) Thanks very much Dina -- http://mail.python.org/mailman/listinfo/python-list
pyMPI error on mpi.barrier()
Hello there I am trying to paralleize GA code using pyMPI. part of the code and and the error message is as below. i write the new positions in a file by root (which is mpi.rank = 0) then other processes are suppose to wait until the written in the file finishes to start evaluating the objective. the problem arises in the barrier method... any ideas on how to do this would be very much appreciated.. Thanks very much Dina for i in xrange(max_iter): if (mpi.rank == 0): update_positions() save_pso_pops_iter() mpi.barrier() error is here evaluate_objective() mpi.barrier() error message: mpi.barrier() mpi.MPIError: MPI_Error_string: invalid communicator: Input/output error (pyMPI_comm_io.c:367) -- http://mail.python.org/mailman/listinfo/python-list
pympi and threading in python
Hello there I am confused in the usage/differences of pympi and threading in python. What I want to do it to run multiple MCMC simulations by dividing the number of the chains I want to run on number of the processors available. Some methods need to be synchronized/locked until some addition operation is finished. I will be very grateful if some one could help. Thanks very much Dina -- http://mail.python.org/mailman/listinfo/python-list
