BLAS : Program is Terminated. Because you tried to allocate too many memory regions

[yyz845935161]

Describe the bug

BLAS : Program is Terminated. Because you tried to allocate too many memory regions

Desktop (please complete the following information):

• OS: usage of OpenFace with Docker

[pablotanner]

@yyz845935161 Were you able to fix this?

[kendrew06]

您的邮件我已收到，有需要会尽快回复This is an automatic reply, confirming that your e-mail was received.Thank you

[brmarkus]

@yyz845935161 @pablotanner can you confirm you are operating in a server environment, using one (or many CPUs) with a high number of CPU cores?

Can you try the following ideas in from these issues:

• OpenBLAS segmentation fault about memory regions #748
• "OpenBLAS : Program will terminate because you tried to start too many threads." even though OPENBLAS_NUM_THREADS=1 (version 0.3.2) #537

Can you try to reduce the number of threads with the environment variable export OMP_NUM_THREADS=1; if that helps, start to increase the number of threads.

[pablotanner]

@brmarkus Thanks for the reply! I found a similar issue where export OPENBLAS_NUM_THREADS=10 was suggested (guessing it's the same as your solution), which ended up working fine 😄

But yes, I was working on a Podman container which was running on a server with 512 CPU cores.

[brmarkus]

Have you found a sweet-spot for the number of threads, to make as many as possible CPU cores available under the "too many memory regions" constrain?

[pablotanner]

@brmarkus I think it depends on what you're trying to run, I was doing feature extraction which was working fine with 10 threads,
but after adding some parameters in the CLI I was forced to increase it to 12 threads.