[Meep-discuss] MPI efficiency

2009-01-12 Thread Nizamov Shawkat
Dear Meep users ! Lately I was trying to implement pythonic interface for libmeep. My current goal is enabling mpi feature of libmeep in python scripts. While enabling mpi is as straight as just calling mpi_init with correct arguments, the actual mpi acceleration do not meet my expectations. I

Re: [Meep-discuss] MPI efficiency

2009-01-12 Thread Benjamin M. Schwartz
Nizamov Shawkat wrote: So the first question is - what mpi efficiency do you observe on your systems? I have observed excellent acceleration. Dual-core systems have been near-linear, and running on 8 machines with a GigE interconnect I got about 6x acceleration. The important thing is to make

Re: [Meep-discuss] MPI efficiency

2009-01-12 Thread Zheng Li
Nizamov Shawkat wrote: Dear Meep users ! Lately I was trying to implement pythonic interface for libmeep. My current goal is enabling mpi feature of libmeep in python scripts. While enabling mpi is as straight as just calling mpi_init with correct arguments, the actual mpi acceleration do

[Meep-discuss] : To get the value of E-field by SI

2009-01-12 Thread Yan Liu
Hello! everyone, First, I am not very sure of the specific way to generate E-field in MEEP. In FDTD method, the E-field is converted to sqrt(epsilon_0/mu_0) where epsilon_0 = 8.85e-12, mu_0 = 1.2566e-6. I wonder how to transfer the result of E-field to the SI value (V/m). Second, in this link