FileNotFoundError: [Errno 2] No such file or directory: 'ldconfig' for flash_attn.layers.rotary.apply_rotary_emb_qkv_(qkv, cos, sin)

[albertotono]

When I run flash_attn.layers.rotary.apply_rotary_emb_qkv_(qkv, cos, sin) in my env, I get FileNotFoundError: [Errno 2] No such file or directory: 'ldconfig'.

I tried following these possible Solution:

• sudo apt-get install libc-bin,
• sudo env "PATH=$PATH:/sbin" apt install libc-bin,
• sudo env "PATH=$PATH" apt install libc-bin

sgl-project/sglang#319 export PATH=$PATH:/sbin
sgl-project/sglang#41 (comment)
#599 run ldconfig before triton

Any idea?

[albertotono]

Initially the triton and flash are in another path .venv/lib/python3.10/site-packages/triton/common/build.py" and then they end up calling this /usr/local/lib/python3.10/

.venv/lib/python3.10/site-packages/triton/common/build.py", line 21, in libcuda_dirs
   libs = subprocess.check_output(["ldconfig", "-p"]).decode()

File "/usr/local/lib/python3.10/subprocess.py", line 421, in check_output
  return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/local/lib/python3.10/subprocess.py", line 503, in run
  with Popen(*popenargs, **kwargs) as process:
File "/usr/local/lib/python3.10/subprocess.py", line 971, in __init__
  self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/local/lib/python3.10/subprocess.py", line 1863, in _execute_child
  raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'ldconfig'