Closed
Description
Environment
- Pythonnet version:
- Python version:
- Operating System:
- .NET Runtime:
- GeForce RTX 3080 (computeCapability: 8.6)
- Windows 10 20H2
- Net Framework 4.8 (Compiled with Visual Studio 2019)
- Python 3.7 (64-bit)
- Nvidia CUDA 11.
- Tensforflow-gpu 2.4.1
- Tf-Agents 0.7.1
- pythonnet 3.0.0-preview2021-04-03
Details
I am current working on using Python.NET to build C# environments for interaction TensorFlow Agents and am receiving a TensorFlow error attempting to load Cuda DLLs.
When I run pure python examples Tensor flow loads the CUDA DLLs without issue:
2021-04-19 03:22:41.062449: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cudart64_110.dll
2021-04-19 03:22:41.062943: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cublas64_11.dll
2021-04-19 03:22:41.063347: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cublasLt64_11.dll
2021-04-19 03:22:41.063709: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cufft64_10.dll
2021-04-19 03:22:41.064088: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library curand64_10.dll
2021-04-19 03:22:41.064455: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cusolver64_10.dll
2021-04-19 03:22:41.064832: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cusparse64_11.dll
2021-04-19 03:22:41.065202: I tensorflow/stream_executor/platform/default/dso_loader.cc:49] Successfully opened dynamic library cudnn64_8.dll
However, when I run an environment that uses a Python environment that is essentially a wrapper for an environment written in C# using Python.Net is recieve errors the Cuda DLLs were not found:
2021-04-19 03:15:14.884746: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cublas64_11.dll'; dlerror: cublas64_11.dll not found
2021-04-19 03:15:14.885031: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cublasLt64_11.dll'; dlerror: cublasLt64_11.dll not found
2021-04-19 03:15:14.885281: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cufft64_10.dll'; dlerror: cufft64_10.dll not found
2021-04-19 03:15:14.885586: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'curand64_10.dll'; dlerror: curand64_10.dll not found
2021-04-19 03:15:14.885851: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cusolver64_10.dll'; dlerror: cusolver64_10.dll not found
2021-04-19 03:15:14.886174: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cusparse64_11.dll'; dlerror: cusparse64_11.dll not found
2021-04-19 03:15:14.886454: W tensorflow/stream_executor/platform/default/dso_loader.cc:60] Could not load dynamic library 'cudnn64_8.dll'; dlerror: cudnn64_8.dll not found
Minimal code to reproduce the issue:
import tensorflow as tf
from TicTacToeSharpEnvironmentWrapper import TicTacToeEnvironment
env = TicTacToeEnvironment()
physical_devices = tf.config.list_physical_devices('GPU')With TicTacToeSharpEnvironmentWrapper.py
import tensorflow as tf
from tf_agents.environments import py_environment
from tf_agents.specs import BoundedArraySpec
from tf_agents.trajectories.time_step import StepType
from tf_agents.trajectories.time_step import TimeStep
import numpy as np
assembly_path1 = r"C:\DesktopGym\bin\Debug"
import sys
sys.path.append(assembly_path1)
import clr
clr.AddReference("GymSharp")
from GymSharp import TicTacToeSharpEnvironment
"""A CSharp environment for Tic-Tac-Toe game."""
class TicTacToeEnvironment(py_environment.PyEnvironment):
"""A state-settable environment for Tic-Tac-Toe game.
"""
def __init__(self):
super(TicTacToeEnvironment, self).__init__()
self.sharp_env = TicTacToeSharpEnvironment()TicTacToeSharpEnvironment is a c# class libary compiled as 64bit dll
public class TicTacToeSharpEnvironment
{
static TicTacToeSharpEnvironment()
{
PythonInitiliazer.InitializePython();
}
}And PythonInitiliazer is used to initalize Python.Net
public class PythonInitiliazer
{
static PythonInitiliazer()
{
InitializePython();
}
static bool initialized;
public static void InitializePython()
{
if (!initialized)
{
initPython();
initialized = true;
}
}
private static void initPython()
{
string pathToVirtualEnv = @"C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\";
Environment.SetEnvironmentVariable("PATH", pathToVirtualEnv, EnvironmentVariableTarget.Process);
Environment.SetEnvironmentVariable("PYTHONHOME", pathToVirtualEnv, EnvironmentVariableTarget.Process);
Environment.SetEnvironmentVariable("PYTHONPATH", $"{pathToVirtualEnv}\\Lib\\site-packages;{pathToVirtualEnv}\\Lib;{pathToVirtualEnv}\\scripts", EnvironmentVariableTarget.Process);
Runtime.PythonDLL = "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\Python37_64\\python37.dll";
PythonEngine.PythonHome = pathToVirtualEnv;
PythonEngine.PythonPath = Environment.GetEnvironmentVariable("PYTHONPATH", EnvironmentVariableTarget.Process);
PythonEngine.Initialize();
}
}The full code works. The Python Wrapper of the C# environment passes the Tensorflow Agents unit tests for the Tic Tac Toe environment. The C# environment can be wrapped as Python or a Tensor flow environment and the various agents can train against the environment.
I don't think this is a compatibility issue using the x64 .Net DLL because I am using 64 bit python, but I a can't be certain.
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