[Meep-discuss] Slow calculation with meep parallelisation

2014-12-02 Thread Gupta, Ratnesh (GE Global Research, Consultant)
Hi, I've configured a cluster with meep-mpi. I am able to execute the code. But the code while run with '-np 1' is completely run within 368 seconds where it took 410 seconds while run with '-np 2'. Similarly, the time keeps increasing for increasing number of processors which is not expected.

Re: [Meep-discuss] Slow calculation with meep parallelisation

2014-12-02 Thread Filip Dominec
Global Research, Consultant) Subject: Re: [Meep-discuss] Slow calculation with meep parallelisation Hi, I believed you might have problems with the inter-node communication in the cluster; I wondered whether the problems pertain when the multiprocessing is run on single node. Maybe you have

Re: [Meep-discuss] Slow calculation with meep parallelisation

2014-12-02 Thread Pavel Ivanov
Dear Ratnesh, Can you check outputs of your simulations when you were using two cores (-np 2)? Did meep-mpi run simulation for each time point twice? Alternatively you can save outputs into a file and email them to me. best wishes pavel On 02/12/14 08:18, Gupta, Ratnesh (GE Global