tensorflow-gpu无法使用Blas GEMM启动失败

Question

我安装了tensorflow-gpu在我的GPU上运行我的tensorflow代码。但我不能让它运行。它一直给出上面提到的错误。下面是我的示例代码，后面是错误堆栈跟踪：

import tensorflow as tf
import numpy as np

def check(W,X):
    return tf.matmul(W,X)


def main():
    W = tf.Variable(tf.truncated_normal([2,3], stddev=0.01))
    X = tf.placeholder(tf.float32, [3,2])
    check_handle = check(W,X)
    with tf.Session() as sess:
        tf.initialize_all_variables().run()
        num = sess.run(check_handle, feed_dict = 
            {X:np.reshape(np.arange(6), (3,2))})
        print(num)
if __name__ == '__main__':
    main()

我的图形处理器是非常好的GeForce GTX1080Ti和11 GB的内存，没有其他重要的运行在它上(只有铬)，你可以在nvidia-smi中看到：

Fri Aug  4 16:34:49 2017       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 381.22                 Driver Version: 381.22                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 108...  Off  | 0000:07:00.0      On |                  N/A |
| 30%   55C    P0    79W / 250W |    711MiB / 11169MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID  Type  Process name                               Usage      |
|=============================================================================|
|    0      7650    G   /usr/lib/xorg/Xorg                             380MiB |
|    0      8233    G   compiz                                         192MiB |
|    0     24226    G   ...el-token=963C169BB38ADFD67B444D57A299CE0A   136MiB |
+-----------------------------------------------------------------------------+

以下是错误堆栈跟踪：

2017-08-04 15:44:21.585091: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.1 instructions, but these are available on your machine and could speed up CPU computations.
2017-08-04 15:44:21.585110: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.2 instructions, but these are available on your machine and could speed up CPU computations.
2017-08-04 15:44:21.585114: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX instructions, but these are available on your machine and could speed up CPU computations.
2017-08-04 15:44:21.585118: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX2 instructions, but these are available on your machine and could speed up CPU computations.
2017-08-04 15:44:21.585122: W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use FMA instructions, but these are available on your machine and could speed up CPU computations.
2017-08-04 15:44:21.853700: I tensorflow/core/common_runtime/gpu/gpu_device.cc:940] Found device 0 with properties: 
name: GeForce GTX 1080 Ti
major: 6 minor: 1 memoryClockRate (GHz) 1.582
pciBusID 0000:07:00.0
Total memory: 10.91GiB
Free memory: 9.89GiB
2017-08-04 15:44:21.853724: I tensorflow/core/common_runtime/gpu/gpu_device.cc:961] DMA: 0 
2017-08-04 15:44:21.853728: I tensorflow/core/common_runtime/gpu/gpu_device.cc:971] 0:   Y 
2017-08-04 15:44:21.853734: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1030] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX 1080 Ti, pci bus id: 0000:07:00.0)
2017-08-04 15:44:24.948616: E tensorflow/stream_executor/cuda/cuda_blas.cc:365] failed to create cublas handle: CUBLAS_STATUS_NOT_INITIALIZED
2017-08-04 15:44:24.948640: W tensorflow/stream_executor/stream.cc:1601] attempting to perform BLAS operation using StreamExecutor without BLAS support
2017-08-04 15:44:24.948805: W tensorflow/core/framework/op_kernel.cc:1158] Internal: Blas GEMM launch failed : a.shape=(1, 5), b.shape=(5, 10), m=1, n=10, k=5
     [[Node: layer1/MatMul = MatMul[T=DT_FLOAT, transpose_a=false, transpose_b=false, _device="/job:localhost/replica:0/task:0/gpu:0"](_arg_Placeholder_0_0/_11, layer1/weights/read)]]
Traceback (most recent call last):
  File "test.py", line 51, in <module>
    _, loss_out, res_out = sess.run([train_op, loss, res], feed_dict)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 789, in run
    run_metadata_ptr)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 997, in _run
    feed_dict_string, options, run_metadata)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 1132, in _do_run
    target_list, options, run_metadata)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 1152, in _do_call
    raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InternalError: Blas GEMM launch failed : a.shape=(1, 5), b.shape=(5, 10), m=1, n=10, k=5
     [[Node: layer1/MatMul = MatMul[T=DT_FLOAT, transpose_a=false, transpose_b=false, _device="/job:localhost/replica:0/task:0/gpu:0"](_arg_Placeholder_0_0/_11, layer1/weights/read)]]
     [[Node: layer2/MatMul/_17 = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/cpu:0", send_device="/job:localhost/replica:0/task:0/gpu:0", send_device_incarnation=1, tensor_name="edge_158_layer2/MatMul", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/cpu:0"]()]]

Caused by op u'layer1/MatMul', defined at:
  File "test.py", line 18, in <module>
    pre_activation = tf.matmul(input_ph, weights)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/math_ops.py", line 1816, in matmul
    a, b, transpose_a=transpose_a, transpose_b=transpose_b, name=name)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/gen_math_ops.py", line 1217, in _mat_mul
    transpose_b=transpose_b, name=name)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/op_def_library.py", line 767, in apply_op
    op_def=op_def)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 2506, in create_op
    original_op=self._default_original_op, op_def=op_def)
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 1269, in __init__
    self._traceback = _extract_stack()

InternalError (see above for traceback): Blas GEMM launch failed : a.shape=(1, 5), b.shape=(5, 10), m=1, n=10, k=5
     [[Node: layer1/MatMul = MatMul[T=DT_FLOAT, transpose_a=false, transpose_b=false, _device="/job:localhost/replica:0/task:0/gpu:0"](_arg_Placeholder_0_0/_11, layer1/weights/read)]]
     [[Node: layer2/MatMul/_17 = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/cpu:0", send_device="/job:localhost/replica:0/task:0/gpu:0", send_device_incarnation=1, tensor_name="edge_158_layer2/MatMul", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/cpu:0"]()]]

除此之外，我之前安装的tensorflow cpu工作得很好。任何帮助都是非常感谢的。谢谢!

注意-我安装了cudnn-5.1的cuda-8.0，并在我的bashrc配置文件中添加了它们的路径。

Answer 1

所以对我来说，这个错误的原因是我的cuda以及所有子目录和文件都需要root权限。因此，tensorflow还需要root权限才能使用cuda。因此，卸载tensorflow并以root用户身份重新安装它为我解决了这个问题。

Answer 2

我也遇到过类似的问题。对我来说，这与nvidia驱动程序更新不谋而合。所以我认为这是司机的问题。但更换驱动程序没有任何效果。最终对我起作用的是清理nvidia缓存：

sudo rm -rf ~/.nv/

在NVIDIA开发者论坛上找到了这个建议：https://devtalk.nvidia.com/default/topic/1007071/cuda-setup-and-installation/cuda-error-when-running-matrixmulcublas-sample-ubuntu-16-04/post/5169223/

我怀疑在驱动程序更新期间，仍然有一些旧版本的编译文件不兼容，甚至在更新过程中被损坏。抛开假设不谈，这为我解决了问题。

Answer 3

为my NVIDIA显卡安装正确的NVIDIA驱动程序和CUDA版本(例如NVIDIA RTX 2070 )为我工作。