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Debugging parfor
Firstly, there should be few differences between running your code containing PARFOR with MATLABPOOL closed and with MATLABPOOL ...

etwa 15 Jahre vor | 0

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Cannot execute matlabpool close on the labs.
You can nest a PARFOR loop invoke another PARFOR loop, but you will not get any additional parallelism. (due to a current limita...

etwa 15 Jahre vor | 1

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very simple cuda ptx code memory speed
To answer your questions: # You're a factor of 2 out in your bandwidth calculation because you need to consider that the data...

etwa 15 Jahre vor | 1

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Executing CUDA or PTX Code on the GPU
I'm not quite sure why that's failing, but you may be able to work around that by constructing the kernel like so: k = para...

etwa 15 Jahre vor | 1

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numerical instabilites for GPU results
I've just run this using R2011a on Linux and Windows using C1060 cards, and in each case the final "norm" calculation gives a re...

etwa 15 Jahre vor | 2

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PTX kernel time to run
Firstly, can I suggest that if possible you should upgrade to R2011a as we have made quite a few performance improvements in tha...

etwa 15 Jahre vor | 0

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Running multiple jobs
With Parallel Computing Toolbox, the "local scheduler" allows you to run a MATLABPOOL up to size 8. If you wish to exceed this, ...

etwa 15 Jahre vor | 0

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GPU CUDA kernel malloc error
You can get that error message if you have a mismatch between the CUDA runtime in use by Parallel Computing Toolbox and the vers...

etwa 15 Jahre vor | 2

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BREAK in a PARFOR loop + processing time example to compare it with a FOR loop.
Further to what Raymond has pointed out, PARFOR doesn't support the concept of early return (other than through throwing an erro...

mehr als 15 Jahre vor | 2

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How can I download Parallel computing toolbox
You need to purchase Parallel Computing Toolbox from MathWorks. You can contact product sales here: <http://www.mathworks.com/co...

mehr als 15 Jahre vor | 1

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undefined function or varialbe 'gpuArrray' in (R2010b) Service Pack 1
Do you have Parallel Computing Toolbox installed? "gpuArray" and the remainder of the GPU support is part of that toolbox. See: ...

mehr als 15 Jahre vor | 1

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Matlabpool Error
Have you tried validating the configuration? See here: http://www.mathworks.com/help/toolbox/distcomp/f5-16141.html#brrzq8d-1 fo...

mehr als 15 Jahre vor | 1

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How to build a table inside a parfor loop
PARFOR is designed for "embarassingly parallel" problems where each iteration of the loop is independent. Unfortunately, the pro...

mehr als 15 Jahre vor | 2

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How to run fmincon on a cluster?
How are you running the code on a cluster? It looks like you may be running "matlab -nojvm" on the cluster - as the error messag...

mehr als 15 Jahre vor | 4

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Two tesla c2050 + quadro 600 - GPU error. Ideas ?
That error code usually indicates that CUDA is having a problem connecting to the device. Are you connecting to the remote machi...

mehr als 15 Jahre vor | 3

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Parallel Simulation
I assume that your "entity generator" block references the value of "n". To get this to work, you need to give the model access ...

mehr als 15 Jahre vor | 4

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Why do some calculations like the FFT produce different results when performed on a GPU?
Walter is quite right that any change to the order of operations changes the result. In the case of FFT on the GPU, we use NVIDI...

mehr als 15 Jahre vor | 7

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Run MATLAB faster using GPU (Intel) in Mac Pro
The system requirements for Parallel Computing Toolbox are described <http://www.mathworks.com/products/parallel-computing/requi...

mehr als 15 Jahre vor | 7

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GPU Computing
Unfortunately, that GPU is compute capability 1.2, and Parallel Computing Toolbox requires GPUs with compute capability 1.3 and ...

mehr als 15 Jahre vor | 11

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Usage of parfor (parallel computing)
Walter is quite right to suggest the local array approach. Just to expand what he described: trials = 30; data = zeros(trials...

mehr als 15 Jahre vor | 4