http://www.k-wave.org/forum/topic/gpu-code-cant-be-run-from-matlab Support for the k-Wave MATLAB toolbox en-US Fri, 15 May 2026 02:33:43 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/gpu-code-cant-be-run-from-matlab#post-8528 Sun, 08 May 2022 05:33:30 +0000 pk82418 8528@http://www.k-wave.org/forum/ <p>I generated the kspaceFirstOrder-CUDA.exe with the provided GPU K-Wave code. Then I ran example_cpp_running_simulations.m with (example_number = 4; input_filename = 'example_input.h5';<br /> output_filename = 'example_output.h5'; pathname = 'E:\K-Wave\';input_args = {'PMLSize', pml_size,'DataName','example','DataPath','E:\K-Wave\','BinaryPath','E:\K-Wave\kspaceFirstOrder-CUDA\x64\Debug'};) I got an error that the output_file can't be opended. I checked the fold and found that the output_file was not generated. By checking the code, I found that (run_string = ['system(''' system_string ' cd /d "' binary_path '" &amp; ' binary_name ' -i "' input_filename '" -o "' output_filename '" ' options_string ''' ,''-echo'');']; eval(run_string);) at lines of 551-552 of kspaceFirstOrder3DC.m is not excecuted successfully. I also tried to excecute （cmd=['E:\K-Wave\kspaceFirstOrder-CUDA\x64\Debug\kspaceFirstOrder-CUDA.exe -i "E:\K-Wave\example_input.h5" -o "E:\K-Wave\example_output.h5" --p_max --p_final'];[status,cmdout]=system(cmd,'-echo')） at the command windows of matlab. The execution failed too. I employed the system() to execute deviceQuery-1.exe which is an example from CUDA. There was no problem. When I ran the kspaceFirstOrder-CUDA.exe with VS2019 or cmd by using the same command "-i E:\K-Wave\example_input.h5 -o E:\K-Wave\example_output.h5 --p_max --p_final", it just worked fine. The correct output_file was generated. Would someone be so kind as to check the problem for me? I use matlab 2020b，VS2019，Win10 x64, Cuda11.4,HDF5 1.8.18. </p>