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• Question: I am getting Windows error: OMP: Error #15.
  Some Windows laptops report the following error:
  

  OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5md.dll already initialized.
OMP: Hint This means that multiple copies of the OpenMP runtime have been linked into the program. That is dangerous, since ...
  
  Answer: When conda installed the libraries for the 11x42-25S-b environment, it installed a duplicate version of libiomp5md.dll. Your default conda installation already had that library, but something (probably torch) installed another copy.. You can set the environment variable, as described in the error message, although that is considered dangerous. The recommended solution is to remove or rename one of the libraries. We suggest removing or renaming the duplicate library that was installed with 11x42-25S-b. On Jamie's Windows system, this library is at the following location.
  
  
  c:\Users\callan\AppData\Local\anaconda3\envs\11x42-25S-b\Library\bin\libiomp5md.dll
  
  Rename it to anything, e.g., libiomp5md-duplicate.dll.

• Question: My macOS Sonoma V14.2, Apple M2 Chip system is throwing an error.
  

  # A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x000000010dc04f7c, pid=4889, tid=42755
[thread 34051 also had an error]
#
# JRE version: OpenJDK Runtime Environment Zulu20.32+11-CA (20.0.2+9) (build 20.0.2+9)
[thread 34307 also had an error]
[thread 42503 also had an error]# Java VM: OpenJDK 64-Bit Server VM Zulu20.32+11-CA (20.0.2+9, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, bsd-amd64)
# Problematic frame:
# [thread 41731 also had an error]

C [libomp.dylib+0x71f7c] __kmp_suspend_initialize_thread+0x1c
  
  Answer: This error message suggests that your system may be having difficulty managing threads. Restricting the number of threads to 1 may resolve this problem.
  export OMP_NUM_THREADS=1
brew install libomp
export DYLD_LIBRARY_PATH=/opt/homebrew/opt/libomp/lib:$DYLD_LIBRARY_PATH

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Updated on April 11, 2025