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Nathan Zechar


Last seen: 9 months ago |  Active since 2020

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Submitted


3D FDTD Magnetized Plasma Example
Example code for the scattering of electromagnetic radiation off a Gaussian plasma ball in the presence of a background magnetic...

2 years ago | 7 downloads |

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Question


Tutorial / classes / training for developing asynchronous CUDA and MEX code?
Hello, I'm trying to improve the performance of my code which makes use of a GPU for calculations that primarily use MTimes. I h...

2 years ago | 1 answer | 0

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answer

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Is it possible to code a function like movsum to perform as fast as the diff function when using gpu arrays?
I'm attempting to find the fastest way to average several points on 3D data. In other parts of a program I'm writting, I've used...

3 years ago | 1 answer | 1

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answer

Question


Does MATLAB support Intel i9-12900k CPU and Nvidia A100 GPU?
I was wondering how matlab performs with the new Alder Lake series Intel processors. They have high performance cores and effici...

3 years ago | 2 answers | 0

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answers

Submitted


FDTD 3D and 2D Examples - ADE CPML and a Dielectric Region
Examples on how to apply ADE CPML. User can change relative permittivity.

3 years ago | 7 downloads |

Submitted


FDTD - 1D, 2D, 3D Simple Free Space Examples
Vectorized FDTD code with GPU functionality for the 3D case. Code is nicely organized and easy to understand.

3 years ago | 54 downloads |

Question


Fastest way to differentiate only the sides of large matricies
I believe I have found one of the fastest ways to differentiate different portions of a large matrix using built in Matlab funct...

3 years ago | 1 answer | 1

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answer

Question


Why is pagemtimes slower than just coding up the matrix multiplication?
I noticed that pagemtimes is slower than just expanding an equation and coding it on both CPU and GPU. But for GPU it is excepti...

3 years ago | 1 answer | 0

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answer

Answered
Why is pagemtimes slower on GPU than a CPU?
Hello David, I have a similiar problem and have found that pagemtimes is slower than just expanding an equation and coding it on...

3 years ago | 0

Answered
How to multiply higher order matrices?
Here's an example. This is one way of doing it. clear all a = 10; %% Convert 3D matrix to 5D for tensor matrix multiplic...

3 years ago | 0

| accepted

Question


How to multiply higher order matrices?
Hello, I am attempting to multiply a 5D 3x3x3x3x3 matrix and a 5D 3x3x3x3x1 matrix in order to produce a 4D matrix of 3x3x3x3 af...

3 years ago | 3 answers | 0

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answers

Question


Large discrepency between CPU and GPU with fftn and ifftn?
Hello, I am using a GPU to compute multipul 3D FFTs. I've come across a problem where the output I am recieving from the GPU FF...

4 years ago | 1 answer | 1

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answer

Question


Parallel Processing with Multipul GPUs - fftn
Hello, I was wondering it is possible to utilize multipul GPUs to perform several ffts in a manner where each individual fft cou...

4 years ago | 1 answer | 1

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answer

Question


How much additional memory is needed to perfrom a 3D FFT other than matrix to be transformed? GPU application.
Hello. I'm trying to gain an understanding of how much memory is needed to perform an FFT, and if it is different with respect t...

4 years ago | 1 answer | 0

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answer

Question


Alternatives to accumarray for faster calculations?
Hello, I have taken someone else's code which had several for-loops in it, and vectorized the code. The code now runs extremelly...

4 years ago | 1 answer | 0

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answer