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Ben Tordoff


MathWorks

40 total contributions since 2011

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Submitted


CPU Info
Read various bits of information about the CPU and operating system.

1 year ago | 12 downloads |

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Submitted


A GPU Mandelbrot Set
Explore the Mandelbrot Set using MATLAB and a GPU.

1 year ago | 19 downloads |

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SplashScreen
Show a splash-screen during MATLAB application start-up.

1 year ago | 20 downloads |

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Submitted


3D Pie Charts With a Touch of Style
3D pie charts with smooth surfaces, lighting and shadows for a more visually appealing appearance.

1 year ago | 4 downloads |

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Submitted


rotateXLabels( ax, angle, varargin )
Rotate x-tick labels to any angle, preserving font settings and coping with resize, zoom, pan etc

1 year ago | 38 downloads |

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Submitted


GUI Layout Toolbox
Layout management objects for MATLAB GUIs

1 year ago | 110 downloads |

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Submitted


taskMap: show your distributed computing tasks
charts completed and running tasks for a distributed computing job for each worker

1 year ago | 0 downloads |

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Submitted


multiWaitbar( label, varargin )
A new "shiny" progress-bar with multiple bars in a single window, time-estimates and more.

1 year ago | 36 downloads |

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Submitted


Carving a Dinosaur
This is a demo of reconstructing a 3D shape from multiple images using space-carving.

1 year ago | 9 downloads |

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Answered
Could I use Convolutional Neural Network in Neural Network toolbox with GPU card of capabilty less than 3.0
Hi Serghei, I'm afraid the answer is no. Neural Network Toolbox uses NVIDIA's cuDNN library for running Convolutional Neural Net...

1 year ago | 2

| accepted

Submitted


GPU Julia Set Explorer
Explore the Julia Set of the Mandelbrot Set using MATLAB and a capable GPU.

3 years ago | 9 downloads |

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Answered
Why can't MATLAB parse function declarations in CUDA C files containing the "restrict" keyword?
Although __restrict is supported by Visual C++, the NVIDIA CUDA programming guide specifies the use of __restrict_...

3 years ago | 0

| accepted

Answered
Matlab GPU processing: Nvidia Quadro vs Geforce
Hi Alex, I don't have access to either of these cards to test, but here's some information that might help you: * The "Com...

3 years ago | 1

Answered
Why do I need 'wait' commands to assess GPU performance in the Parallel Computing Toolbox 6.0 (R2012a)?
If you have R2013b or above, an even better way to measure the time taken for a function is to use <http://www.mathworks.com/hel...

4 years ago | 0

Responded


Re: matrix operations on GPU
Hi Mike, this is pretty weird and not something I've seen before. I tried your example on a GTX 480 (the nearest thing I have to...

4 years ago | 3463 views

Answered
GPU FFT2 Discrepancies ( Different from CPU based FFT2 )
See the answer(s) to this question: <http://www.mathworks.com/matlabcentral/answers/1032-why-do-some-calculations-like-the-fft...

4 years ago | 1

| accepted

Answered
CUDA_ERROR_UNKNOWN when using floats instead of double precision
Thanks for sending the code. I’ve done some initial investigation and it looks like you have an illegal memory access somewhe...

4 years ago | 1

| accepted

Answered
Getting NaN when evaluating PTX kernel file
First thing to do to track this down is to clearly specify your inputs and outputs. Inputs should be const. Based on your descri...

4 years ago | 1

| accepted

Answered
How to fix error : unrecognized token in Cuda code with nvcc compiler
There are two problems with what you have attempted, one just a typo and the solution to the other will depend on what you are t...

4 years ago | 0

| accepted

Answered
getframe issue in for-loop.
Hi Mike, you could try inserting a 'drawnow' just before the 'getframe'. This tells all MATLAB graphics and events to flush. ...

4 years ago | 0

| accepted

Answered
Memory leak while using gpuArray in parallel computing toolbox 2013a
Hi Laith, I believe this should be fixed by the following workaround: <http://www.mathworks.com/support/bugreports/954239> ...

4 years ago | 0

Answered
Matlab 2013a GPU memory leak
Hi Michael, could you read the following bug-report and try the workaround it contains (being careful about the backing-up step!...

4 years ago | 0

| accepted

Responded


Re: GPU Test
Hi Chuck37, You're not doing it wrong and it (mostly) isn't the fault of your GPU either! Unfortunately the SUM in this code is...

4 years ago | 2355 views

Answered
How to measure GPU memory bandwidth ?
Hi Anterrieu, you might like to have a look at the following article: <http://blogs.mathworks.com/loren/2012/12/14/measuri...

4 years ago | 2

| accepted

Answered
CUDA: faster indexing methods than logical for large arrays?
You can sometimes get a speed-up by replacing the logical indexing with some element-wise maths. For example: trian_x = M.*...

4 years ago | 0

| accepted

Answered
CUDA Kernels and long vectors
If you want to go down the "x" dimension first, you probably want int const globalBlockIdx = blockIdx.y * gridDim.x + block...

4 years ago | 0

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

5 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

5 years ago

Answered
Cuda PTX kernel function boolean argument not supported?
Thanks for providing the compile line. It seems that recent versions of NVCC switch from mapping bools as "s8" to "u8" according...

5 years ago | 3

| accepted

Answered
error when using gpu
Unfortunately, an expression like: gpuArray(1):gpuArray(10) won't work, and (as Walter says) it looks like one of your "...

5 years ago | 2

| accepted

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