I installed numpy in my user space. The version is 1.21.3. Now when I run import torch, there are some new error messages:

import torch
OpenBLAS blas_thread_init: pthread_create failed for thread 10 of 20: Resource temporarily unavailable
OpenBLAS blas_thread_init: RLIMIT_NPROC 300 current, 300 max
Segmentation fault (core dumped)

Is this because the RLIMIT_NPROC number is too small? I think 300 concurrent processes sounds large enough. If this is the cause of segfault, how large this number should be? Thank you.
PS, according to the error message, OpenBLAS failed at creating new threads. The system imposed number of threads is 512198, I think that is also large enough. In addition, why does OpenBLAS have to create 20 threads (is OpenBLAS trying to build a thread pool)? Is it possible to create only 9 so that the failure would not occur (if it does not affect the performance)?