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Heiko Weichelt

Last seen: 8日 前 |  2016 年からアクティブ

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How are preconditioned GMRES relative residual computed?
Thanks for bringing this to our attention. I can reproduce the issue you mentioned @响 李. We discussed this internally and foun...

約1ヶ月 前 | 2

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page-wise matrix determinant or eigenvalues
R2023a, released March 15th 2023, ships PAGEEIG as new function in the page* family: https://www.mathworks.com/help/matlab/rele...

1年以上 前 | 1

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LAPACK: Unable to determine CPU type, on Ubuntu and engineering sample CPU.
Please try to set the following ENVs before starting MATLAB: BLAS_VERSION=mkl.so LAPACK_VERSION=mkl.so The mechanism to...

2年弱 前 | 0

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What, if anything, can be done to optimize performance for modern AMD CPU's?
After intense collaboration between MathWorks and AMD, as of MATLAB R2022a, MATLAB ships a custom-built version of AOCL 3.1 that...

2年以上 前 | 5

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I get the illegal instruction error while running Matlab code on HPC
Please reach out to technical support, as already suggested, for more help. Most likely the issue comes from the MKL that is u...

2年以上 前 | 0

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The problem of 'conv2' with 'BLAS loading error.
The problem occurs from the fact that this particular processor is not correctly detected by MATLAB, and hence, not the right BL...

約3年 前 | 0

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How do I link my mex file to mkl?
MATLAB uses Intel's MKL as BLAS and LAPACK implementation, not for FFT, however. To see how to use those symbols inside a MEX f...

4年弱 前 | 0

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Correlation on distributed array
Hi Soumyadipta Although xcorr does not show up on the methods list of distributed methods('distributed') you can use xcorr wi...

6年弱 前 | 1

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svds performance on GPU is upto 10 times slower than on CPU
Hi Florian Thanks for asking this question. GPUs are only faster than CPUs if you can keep lots of threads running, and t...

6年以上 前 | 1

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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:...

8年以上 前