Fail to create more than 12 workers using parallel toolbox on linux (matlab R2019b)

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Yongna GUO
Yongna GUO 2021-2-22
回答： Raymond Norris 2021-2-22
I am trying to using parallel toolbox on linux, the cores is 56, I would like to set the workers to 56. But it failed.
Here are the errors:
7*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad0265120 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad03caef0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad0266da0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': double free or corruption (!prev): 0x00007faad0266da0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad00ddda0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad00ffab0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad0397370 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad00f5f70 ***
*** Error in `*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad0099bd0 ***
/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad03876c0 ***
*** Error in `*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': *** Error in `double free or corruption (!prev): 0x00007faad02a7aa0 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad016a660 ***
*** Error in `/opt/hpc/MATLAB/R2019b/bin/glnxa64/MATLAB': free(): corrupted unsorted chunks: 0x00007faad02cda00 ***
Please help me! Thanks!

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回答（1 个）

Raymond Norris
Raymond Norris 2021-2-22
Here are a couple of similar posts that might help
https://www.mathworks.com/matlabcentral/answers/478171-parpool-consistently-failing-to-initialize
https://www.mathworks.com/matlabcentral/answers/305525-12-core-limitation-in-2015b
Bottom line: might be a ulimit issue. Otherwise, please contact Technical Support (support@mathworks.com).

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