Learning Forum

[shaolb]

We have got the following issues when testing the new GPU solver for FDTD. 

It seems FDTD is trying to use a folder that does not exist.   "/home/lumerical"  for hdf5 

The /home directory is a network location, and Lumerical cannot use "/home/lumerical" as temp folder. I don't know how to set / change the folder.  

 

The error message is below:

/opt/lumerical/v232/bin/fdtd-engine-mpich2nem" -gpu -t 1 "/XXXXX/XXXX/XXXX/XXXX.fsp"

HDF5-DIAG: Error detected in HDF5 (1.8.17) thread 0:
#000: /home/lumerical/temp_hdf/CMake-hdf5-1.8.17/hdf5-1.8.17/src/H5Pdcpl.c line 870 in H5Pset_chunk(): all chunk dimensions must be positive
major: Invalid arguments to routine
minor: Out of range
HDF5-DIAG: Error detected in HDF5 (1.8.17) thread 0:
#000: /home/lumerical/temp_hdf/CMake-hdf5-1.8.17/hdf5-1.8.17/src/H5D.c line 194 in H5Dcreate2(): unable to create dataset
major: Dataset
minor: Unable to initialize object
#001: /home/lumerical/temp_hdf/CMake-hdf5-1.8.17/hdf5-1.8.17/src/H5Dint.c line 455 in H5D__create_named(): unable to create and link to dataset
major: Dataset
minor: Unable to initialize object
......

 

[Lito]

There are certain requirements and limitations when running FDTD with GPU. Not all FDTD simulations will run with GPU. Please see the Knowledge Base (KB) for more information. > FDTD GPU Solver Information – Ansys Optics