From 9fc0ab415c564d278b673c694de9b884ea1121d2 Mon Sep 17 00:00:00 2001
From: Max Ryabinin <mryabinin0@gmail.com>
Date: Wed, 24 Aug 2022 18:43:18 +0300
Subject: Remove unused code

---
 bitsandbytes/cuda_setup/compute_capability.py | 79 ---------------------------
 bitsandbytes/cuda_setup/main.py               |  3 -
 bitsandbytes/cuda_setup/paths.py              | 13 -----
 3 files changed, 95 deletions(-)
 delete mode 100644 bitsandbytes/cuda_setup/compute_capability.py

(limited to 'bitsandbytes/cuda_setup')

diff --git a/bitsandbytes/cuda_setup/compute_capability.py b/bitsandbytes/cuda_setup/compute_capability.py
deleted file mode 100644
index 7a3f463..0000000
--- a/bitsandbytes/cuda_setup/compute_capability.py
+++ /dev/null
@@ -1,79 +0,0 @@
-import ctypes
-from dataclasses import dataclass, field
-
-
-@dataclass
-class CudaLibVals:
-    # code bits taken from
-    # https://gist.github.com/f0k/63a664160d016a491b2cbea15913d549
-
-    nGpus: ctypes.c_int = field(default=ctypes.c_int())
-    cc_major: ctypes.c_int = field(default=ctypes.c_int())
-    cc_minor: ctypes.c_int = field(default=ctypes.c_int())
-    device: ctypes.c_int = field(default=ctypes.c_int())
-    error_str: ctypes.c_char_p = field(default=ctypes.c_char_p())
-    cuda: ctypes.CDLL = field(init=False, repr=False)
-    ccs: List[str, ...] = field(init=False)
-
-    def _initialize_driver_API(self):
-        self.check_cuda_result(self.cuda.cuInit(0))
-
-    def _load_cuda_lib(self):
-        """
-        1. find libcuda.so library (GPU driver) (/usr/lib)
-           init_device -> init variables -> call function by reference
-        """
-        libnames = "libcuda.so"
-        for libname in libnames:
-            try:
-                self.cuda = ctypes.CDLL(libname)
-            except OSError:
-                continue
-            else:
-                break
-        else:
-            raise OSError("could not load any of: " + " ".join(libnames))
-
-    def call_cuda_func(self, function_obj, **kwargs):
-        CUDA_SUCCESS = 0  # constant taken from cuda.h
-        pass
-        # if (CUDA_SUCCESS := function_obj(
-
-    def _error_handle(cuda_lib_call_return_value):
-        """
-        2. call extern C function to determine CC
-           (see https://docs.nvidia.com/cuda/cuda-driver-api/group__CUDA__DEVICE__DEPRECATED.html)
-        """
-        CUDA_SUCCESS = 0  # constant taken from cuda.h
-
-        if cuda_lib_call_return_value != CUDA_SUCCESS:
-            self.cuda.cuGetErrorString(
-                cuda_lib_call_return_value,
-                ctypes.byref(self.error_str),
-            )
-            print("Count not initialize CUDA - failure!")
-            raise Exception("CUDA exception!")
-        return cuda_lib_call_return_value
-
-    def __post_init__(self):
-        self._load_cuda_lib()
-        self._initialize_driver_API()
-        self.check_cuda_result(
-            self.cuda, self.cuda.cuDeviceGetCount(ctypes.byref(self.nGpus))
-        )
-        tmp_ccs = []
-        for gpu_index in range(self.nGpus.value):
-            check_cuda_result(
-                self.cuda,
-                self.cuda.cuDeviceGet(ctypes.byref(self.device), gpu_index),
-            )
-            check_cuda_result(
-                self.cuda,
-                self.cuda.cuDeviceComputeCapability(
-                    ctypes.byref(self.cc_major),
-                    ctypes.byref(self.cc_minor),
-                    self.device,
-                ),
-            )
-            tmp_ccs.append(f"{self.cc_major.value}.{self.cc_minor.value}")
-        self.ccs = sorted(tmp_ccs, reverse=True)
diff --git a/bitsandbytes/cuda_setup/main.py b/bitsandbytes/cuda_setup/main.py
index 975b772..ba7e04c 100644
--- a/bitsandbytes/cuda_setup/main.py
+++ b/bitsandbytes/cuda_setup/main.py
@@ -17,9 +17,7 @@ evaluation:
 """
 
 import ctypes
-from pathlib import Path
 
-from ..utils import execute_and_return
 from .paths import determine_cuda_runtime_lib_path
 
 
@@ -80,7 +78,6 @@ def get_compute_capabilities(cuda):
     cc_major = ctypes.c_int()
     cc_minor = ctypes.c_int()
 
-    result = ctypes.c_int()
     device = ctypes.c_int()
 
     check_cuda_result(cuda, cuda.cuDeviceGetCount(ctypes.byref(nGpus)))
diff --git a/bitsandbytes/cuda_setup/paths.py b/bitsandbytes/cuda_setup/paths.py
index 9c565c7..610665f 100644
--- a/bitsandbytes/cuda_setup/paths.py
+++ b/bitsandbytes/cuda_setup/paths.py
@@ -5,20 +5,9 @@ from warnings import warn
 from ..utils import print_stderr
 from .env_vars import get_potentially_lib_path_containing_env_vars
 
-
 CUDA_RUNTIME_LIB: str = "libcudart.so"
 
 
-def purge_unwanted_semicolon(tentative_path: Path) -> Path:
-    """
-    Special function to handle the following exception:
-    __LMOD_REF_COUNT_PATH=/sw/cuda/11.6.2/bin:2;/mmfs1/home/dettmers/git/sched/bin:1;/mmfs1/home/dettmers/data/anaconda3/bin:1;/mmfs1/home/dettmers/data/anaconda3/condabin:1;/mmfs1/home/dettmers/.local/bin:1;/mmfs1/home/dettmers/bin:1;/usr/local/bin:1;/usr/bin:1;/usr/local/sbin:1;/usr/sbin:1;/mmfs1/home/dettmers/.fzf/bin:1;/mmfs1/home/dettmers/data/local/cuda-11.4/bin:1
-    """
-    # if ';' in str(tentative_path):
-    #     path_as_str, _ = str(tentative_path).split(';')
-    pass
-
-
 def extract_candidate_paths(paths_list_candidate: str) -> Set[Path]:
     return {Path(ld_path) for ld_path in paths_list_candidate.split(":") if ld_path}
 
@@ -117,8 +106,6 @@ def determine_cuda_runtime_lib_path() -> Union[Path, None]:
         if env_var not in {"CONDA_PREFIX", "LD_LIBRARY_PATH"}
     }
 
-
-
     cuda_runtime_libs = set()
     for env_var, value in remaining_candidate_env_vars.items():
         cuda_runtime_libs.update(find_cuda_lib_in(value))
-- 
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