k-Wave User Forum » Topic: C++ Simulation Codes operating Issue

k-Wave User Forum » Topic: C++ Simulation Codes operating Issue http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:39:02 +0000 http://bbpress.org/?v=1.0.2 <![CDATA[Search]]> q http://www.k-wave.org/forum/search.php Bradley Treeby on "C++ Simulation Codes operating Issue" http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue#post-8446 Tue, 01 Feb 2022 10:17:03 +0000 Bradley Treeby 8446@http://www.k-wave.org/forum/ Do you have permission to write to <code>C:\...</code>? Try saving the data to your home folder. manik on "C++ Simulation Codes operating Issue" http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue#post-8431 Mon, 17 Jan 2022 22:07:30 +0000 manik 8431@http://www.k-wave.org/forum/ 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{:}); age8311 on "C++ Simulation Codes operating Issue" http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue#post-7302 Thu, 19 Mar 2020 09:54:23 +0000 age8311 7302@http://www.k-wave.org/forum/ Hi Brad, How can I use 'DataPath' optional input? Should I change downloaded script(kspaceFirstOrder2DG.m)? Youngsoo. Bradley Treeby on "C++ Simulation Codes operating Issue" http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue#post-7293 Mon, 16 Mar 2020 12:43:21 +0000 Bradley Treeby 7293@http://www.k-wave.org/forum/ 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 <code>'DataPath'</code> optional input? Brad. age8311 on "C++ Simulation Codes operating Issue" http://www.k-wave.org/forum/topic/c-simulation-codes-operating-issue#post-7292 Sat, 14 Mar 2020 03:09:31 +0000 age8311 7292@http://www.k-wave.org/forum/ 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{:});