Elegant users forum

Yusong, Sorry for the misleading information in my previous post. The problem is still there. Because the number of particles at elements are missing with Pelegant, the optimization term will always be 1 after I made the previous change. So I only get away with the error message but not the real pro...

Yusong,

I managed to get around it by replace the number of particles with the known number at the beginning and still use the number of particles at the end of the last element.

Thanks,

Wanming

Yusong, Please find the attached file. In this example, because the lattice has been optimized, so elegant will finish very fast. But when I do it with mpirun -n 6 Pelegant ....., it ended up with the error message. If I commented out the optimization term with number of particles involved, both ele...

Hi, When I use element#1.Particles to optimize for transmission using elegant, every thing works perfectly. But when I tried to speed up with Pelegant, I'm getting error like "Problem evaluating expression: MENDARC0#1.Particles MSOL3LTR#1.Particles - MENDARC0#1.Particles / RPN expression errors prev...

Michael and Yusong

Thanks for the help.

Wanming

Hello, I'm trying to do parallel optimizations on a quad core desktop and trying to figure out which method is the best for job. From the manual, it says that the method for parallel optimization may be one of "genetic", "hybridsimplex" or "swarm". I don't have much computation resource, so "swarm" ...

Yusong, I made a change to SDDSmpi_output.c to make the latest Pelegant working under cygwin. I changed the following line in function SDDS_MPI_File_Open from if( MPI_SUCCESS != (mpi_code=MPI_File_sync(MPI_dataset->MPI_file))) SDDS_MPI_GOTO_ERROR(stderr,"MPI_File_sync failed", mpi_code, 1); into if(...

Yusong,

Thanks for your replies.
For the one I made it working, it is version 21.0 and I built it with DSDDS_MPI_IO=0.
I'll try the Windows version later.

Thanks,

Wanming

Hi, I'm trying to get the latest Pelegant work under cygwin with quad core desktop. The problem I have now is that I always run into problem with MPI_File_sync failed: Other I/O error , error stack: ADIOI_GEN_FLUSH(23): Other I/O error Permission denied I tried to build Pelegant with DSDDS_MPI_IO=0,...

Yusong, Thanks for all the help. It might be simply caused by an incomplete build before I enabled the flag. I usually did the build for serial first and I might forgot to do make clean before make Pelegant. I got it work under both cygwin in a Vista quad core desktop and Fedora in a quad core lapto...