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diff --git a/samples/s008_gpu_selection.m b/samples/s008_gpu_selection.m
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+%------------------------------------------------------------------------
+% This file is part of the
+% All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA-Toolbox")
+%
+% Copyright: iMinds-Vision Lab, University of Antwerp
+% License: Open Source under GPLv3
+% Contact: mailto:astra@ua.ac.be
+% Website: http://astra.ua.ac.be
+%------------------------------------------------------------------------
+
+vol_geom = astra_create_vol_geom(256, 256);
+proj_geom = astra_create_proj_geom('parallel', 1.0, 384, linspace2(0,pi,180));
+P = phantom(256);
+
+% Create a sinogram from a phantom, using GPU #1. (The default is #0)
+[sinogram_id, sinogram] = astra_create_sino_gpu(P, proj_geom, vol_geom, 1);
+
+
+% Set up the parameters for a reconstruction algorithm using the GPU
+rec_id = astra_mex_data2d('create', '-vol', vol_geom);
+cfg = astra_struct('SIRT_CUDA');
+cfg.ReconstructionDataId = rec_id;
+cfg.ProjectionDataId = sinogram_id;
+
+% Use GPU #1 for the reconstruction. (The default is #0.)
+cfg.option.GPUindex = 1;
+
+% Run 150 iterations of the algorithm
+alg_id = astra_mex_algorithm('create', cfg);
+astra_mex_algorithm('iterate', alg_id, 150);
+rec = astra_mex_data2d('get', rec_id);
+
+
+% Clean up.
+astra_mex_algorithm('delete', alg_id);
+astra_mex_data2d('delete', rec_id);
+astra_mex_data2d('delete', sinogram_id);