http://www.k-wave.org/forum/topic/parallel-computing-toolbox-and-transducer-as-a-sensor Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 00:47:14 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/parallel-computing-toolbox-and-transducer-as-a-sensor#post-5094 Tue, 02 Jun 2015 16:52:26 +0000 Bradley Treeby 5094@http://www.k-wave.org/forum/ <p>Hi Margot,</p> <p>I am having trouble reproducing your error. If you run the <a href="">Simulating B-mode Ultrasound Images Example</a> changing <code>DATA_CAST</code> to <code>&#39;gpuArray-single&#39;</code>, do you get the same error? </p> <p>Brad. </p> http://www.k-wave.org/forum/topic/parallel-computing-toolbox-and-transducer-as-a-sensor#post-5084 Wed, 13 May 2015 14:35:45 +0000 mgt_p 5084@http://www.k-wave.org/forum/ <p>Hi Brad,</p> <p>I was trying to move simulations that run smoothly but slowly from the CPU to GPU using the Parallel Computing Toolbox.</p> <p>I get an error from checkFieldNames.m saying: </p> <p>Error using checkFieldNames (line 51)<br /> number_elements is not a valid field for the structure sensor</p> <p>I assume that this check is not performed on CPU version since it runs.<br /> Is there a way to fix or by-pass this?</p> <p>Thank you,</p> <p>Margot</p> <p>-------</p> <p>LINES:</p> <p>input_args = {'PMLInside', false,...<br /> 'PlotSim', false,...<br /> 'PMLSize', [PML_X, PML_Y, PML_Z], ...<br /> 'DataCast', 'gpuArray-single'};</p> <p> Transmits.Left.sensor_data = kspaceFirstOrder3D(kgrid,medium,...<br /> transducer1,...<br /> transducer1_receive,...<br /> input_args{:});</p> <p>DATA: </p> <p>kgrid = </p> <p> kWaveGrid with properties:</p> <p> Nx: 409<br /> Ny: 193<br /> Nz: 130<br /> dx: 1.5400e-04<br /> dy: 1.5400e-04<br /> dz: 1.5400e-04<br /> kx_vec: [409x1 double]<br /> ky_vec: [193x1 double]<br /> kz_vec: [130x1 double]<br /> k: [409x193x130 double]<br /> kx_max: 2.0350e+04<br /> ky_max: 2.0294e+04<br /> kz_max: 2.0400e+04<br /> k_max: 2.0294e+04<br /> dim: 3<br /> nonuniform: 0<br /> t_array: [1x3000 double]<br /> x: [409x193x130 double]<br /> y: [409x193x130 double]<br /> z: [409x193x130 double]<br /> kx: [409x193x130 double]<br /> ky: [409x193x130 double]<br /> kz: [409x193x130 double]<br /> x_vec: [409x1 double]<br /> y_vec: [193x1 double]<br /> z_vec: [130x1 double]<br /> x_size: 0.0630<br /> z_size: 0.0200<br /> y_size: 0.0297<br /> dt: 3.0000e-08<br /> Nt: 3000<br /> total_grid_points: 10261810</p> <p>medium = </p> <p> sound_speed: [409x193x130 double]<br /> density: [409x193x130 double]<br /> alpha_coeff: 0.7500<br /> alpha_power: 1.5000<br /> BonA: 6<br /> transducer1 = </p> <p> number_elements: 128<br /> element_width: 1<br /> element_length: 84<br /> element_spacing: 0<br /> radius: Inf<br /> position: [1 33 23]<br /> sound_speed: 1540<br /> transmit_apodization: 'Rectangular'<br /> receive_apodization: 'Tukey'<br /> input_signal: [1x162 double]<br /> active_elements: [128x1 double]<br /> focus_distance: 0.0403<br /> elevation_focus_distance: 0.0403<br /> steering_angle: 6.9079</p> <p>transducer1_receive = </p> <p> number_elements: 128<br /> element_width: 1<br /> element_length: 84<br /> element_spacing: 0<br /> radius: Inf<br /> position: [1 33 23]<br /> sound_speed: 1540<br /> transmit_apodization: 'Rectangular'<br /> receive_apodization: 'Tukey'<br /> input_signal: [1x162 double]<br /> active_elements: [128x1 double]<br /> focus_distance: 0.0400<br /> elevation_focus_distance: 0.0400<br /> steering_angle: 0 </p>