CudaSupportError: Error at driver init: CUDA driver library cannot be found

[pauliferni]

I install

conda install cudatoolkit
pip install falsecolor
pip install argparse

but I always get the same error

CudaSupportError Traceback (most recent call last) in ----> 1 level_virtualHE = fc.rapidFalseColor(nuc_nobg, cyto_nobg, nuclei_RGBsettings, cyto_RGBsettings, 2 run_FlatField_nuc = True, run_FlatField_cyto = True, 3 nuc_normfactor = C_nuc, 4 cyto_normfactor = C_cyto) 5

~\anaconda3\lib\site-packages\falsecolor\coloring.py in rapidFalseColor(nuclei, cyto, nuc_settings, cyto_settings, TPB, nuc_normfactor, cyto_normfactor, run_FlatField_nuc, run_FlatField_cyto, nuc_bg_threshold, cyto_bg_threshold) 179 180 # allocate memory for background subtraction --> 181 pre_nuc_output = cuda.device_array(nuclei.shape) 182 nuc_global_mem = cuda.to_device(nuclei) 183

~\anaconda3\lib\site-packages\numba\cuda\cudadrv\devices.py in _require_cuda_context(*args, **kws) 221 @functools.wraps(fn) 222 def _require_cuda_context(*args, **kws): --> 223 with _runtime.ensure_context(): 224 return fn(*args, **kws) 225

~\anaconda3\lib\contextlib.py in enter(self) 111 del self.args, self.kwds, self.func 112 try: --> 113 return next(self.gen) 114 except StopIteration: 115 raise RuntimeError("generator didn't yield") from None

~\anaconda3\lib\site-packages\numba\cuda\cudadrv\devices.py in ensure_context(self) 119 any top-level Numba CUDA API. 120 """ --> 121 with driver.get_active_context(): 122 oldctx = self._get_attached_context() 123 newctx = self.get_or_create_context(None)

~\anaconda3\lib\site-packages\numba\cuda\cudadrv\driver.py in enter(self) 391 else: 392 hctx = drvapi.cu_context(0) --> 393 driver.cuCtxGetCurrent(byref(hctx)) 394 hctx = hctx if hctx.value else None 395

~\anaconda3\lib\site-packages\numba\cuda\cudadrv\driver.py in getattr(self, fname) 281 282 if self.initialization_error is not None: --> 283 raise CudaSupportError("Error at driver init: \n%s:" % 284 self.initialization_error) 285

CudaSupportError: Error at driver init: CUDA driver library cannot be found. If you are sure that a CUDA driver is installed, try setting environment variable NUMBA_CUDA_DRIVER with the file path of the CUDA driver shared library.

What do I have to install then? Because the directory is assumed to be already running.

[serrob23]

Hi sorry for the late reply, just seeing this now. I've never seen this error before. Do you have a cuda enabled GPU?