k-Wave

1. age8311
   

   Member
   Joined: Jan '20
   Posts: 2

   Hi,

   When I change kspaceFirstOrder2D() to kspaceFirstOrder2DG(), Matlab reports the following error:

   Should I have to install compiler?

   My PC system is below
   ======================================
   OS : Window 10
   CPU : Intel(R) Core(TM) i7-8700K
   GPU : NVIDIA GeForce GTX 1080
   ======================================

   =======Command window=================
   >>example_us_beam_patterns

   k-Wave Transducer Properties
   transducer position: [1 6 16]
   transducer width: 14.5455mm (32 grid points)
   number of elements: 32
   number of active elements: 32 (elements 1 to 32)
   element width: 454.5455um (1 grid points)
   element spacing (kerf): 0m (0 grid points)
   element pitch: 454.5455um (1 grid points)
   element length: 5.4545mm (12 grid points)
   sound speed: 1540m/s
   focus distance: 20mm
   elevation focus distance: 19mm
   steering angle: 0 degrees
   steering angle max: auto degrees
   Running k-Wave simulation...
   start time: 14-Mar-2020 10:59:07
   reference sound speed: 1540m/s
   prepending transducer.input_signal with 10 leading zeros
   appending transducer.input_signal with 10 trailing zeros
   dt: 88.5478ns, t_end: 44.9823us, time steps: 509
   input grid size: 88 by 44 by 44 grid points (40 by 20 by 20mm)
   maximum supported frequency: 1.694MHz
   expanding computational grid...
   computational grid size: 128 by 64 by 64 grid points
   precomputation completed in 0.091849s
   saving input files to disk...
   completed in 1.042s
   +---------------------------------------------------------------+
   | kspaceFirstOrder-CUDA v1.3 |
   +---------------------------------------------------------------+
   | Reading simulation configuration: Failed |
   +---------------------------------------------------------------+
   +---------------------------------------------------------------+
   | !!! K-Wave experienced a fatal error !!! |
   +---------------------------------------------------------------+
   | Error: File C:\Users\최영수\AppData\Local\Temp\kwave_input_ |
   | data14-Mar-2020-10-59-07.h5 was not found or cannot |
   | be opened.: iostream stream error |
   +---------------------------------------------------------------+
   | Execution terminated |
   +---------------------------------------------------------------+
   Error using h5readc
   The filename specified was either not found on the MATLAB path or it contains unsupported characters.
   Error in h5read (line 66)
   [data,var_class] = h5readc(Filename,Dataset,start,count,stride);
   Error in kspaceFirstOrder3DC (line 569)
   Nx = h5read(output_filename, '/Nx');
   Error in kspaceFirstOrder3DG (line 69)
   sensor_data = kspaceFirstOrder3DC(varargin{:});
   Error in example_us_beam_patterns (line 180)
   sensor_data = kspaceFirstOrder3DG(kgrid, medium, transducer, sensor, input_args{:});

   Posted 4 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi age8311,

   You shouldn't need to install a compiler. It looks like it can't open the input file. What happens if you save the input file to a different location (e.g., root C:\) by using the 'DataPath' optional input?

   Brad.

   Posted 4 years ago #

3. age8311
   

   Member
   Joined: Jan '20
   Posts: 2

   Hi Brad,

   How can I use 'DataPath' optional input?
   Should I change downloaded script(kspaceFirstOrder2DG.m)?

   Youngsoo.

   Posted 4 years ago #

4. manik
   

   Member
   Joined: Jan '21
   Posts: 3

   Hi, i am also facing the same error. tried using Datapath agrument, now error is

   Error using hdf5lib2
   Unable to access 'C:\kwave_input_data18-Jan-2022-02-35-35.h5'. You might not have permission.

   Error in H5F.create (line 76)
   file_id = H5ML.hdf5lib2('H5Fcreate', varargin{:});

   Error in h5create>create_dataset (line 183)
   fid = H5F.create(options.Filename,'H5F_ACC_TRUNC','H5P_DEFAULT', ...

   Error in h5create (line 100)
   create_dataset(options);

   Error in writeMatrix (line 197)
   h5create(filename,['/' matrix_name], [Nx, Ny, Nz], ...

   Error in kspaceFirstOrder_saveToDisk (line 462)
   writeMatrix(flags.save_to_disk, eval(variable_list{cast_index}), variable_list{cast_index},
   hdf_compression_level);

   Error in kspaceFirstOrder3D (line 673)
   kspaceFirstOrder_saveToDisk;

   Error in kspaceFirstOrder3DC (line 532)
   eval(run_string);

   Error in example_cpp_running_simulations (line 131)
   sensor_data = kspaceFirstOrder3DC(kgrid, medium, source, sensor, input_args{:});

   Posted 2 years ago #

5. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Do you have permission to write to C:\...? Try saving the data to your home folder.

   Posted 2 years ago #

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