Created by: OliverLPH

• 标题：import paddle.fluid 时报错dlopen：cannot load any more object with static TLS
• 版本、环境信息：    1）PaddlePaddle版本：develop：a6e935f4    2）CPU：MKL/openblas    3）GPU：CUDA9/CUDA10    4）系统环境：paddlepaddle/paddle_manylinux_devel:cuda10.0_cudnn7，centos6.1，gcc482
• 安装方式信息： 1）pip安装/docker安装 2）本地编译： 3）docker编译：paddlepaddle/paddle_manylinux_devel:cuda10.0_cudnn7   特殊环境请注明：需升级镜像中的glibc版本
• 复现信息：

由于镜像中的glibc版本仅为2.13，而TensorRT的lib依赖的glibc需高于2.13，所以先升级镜像中的glibc至2.18，升级命令如下。

wget http://ftp.gnu.org/gnu/glibc/glibc-2.18.tar.gz
tar -xvf glibc-2.18.tar.gz
cd glibc-2.18
unset LD_LIBRARY_PATH # must unset LD_LIBRARY_PATH before compile glibc
mkdir build && cd build && ../configure --prefix=/usr && make -j4 && make install
export LD_LIBRARY_PATH=/opt/rh/devtoolset-2/root/usr/lib64:/opt/rh/devtoolset-2/root/usr/lib:/usr/local/lib64:/usr/local/lib:

然后安装ci上编译的develop的cuda9.0_cudnn7_mkl whl包

打开Python 后import paddle.fluid

其中mkl的包会报错。

Python 2.7.11 (default, Nov 15 2019, 12:44:37)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-15)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import paddle
>>> import paddle.fluid as fluid
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/_internal/cpython-2.7.11-ucs4/lib/python2.7/site-packages/paddle/fluid/__init__.py", line 35, in <module>
    from . import framework
  File "/opt/_internal/cpython-2.7.11-ucs4/lib/python2.7/site-packages/paddle/fluid/framework.py", line 35, in <module>
    from . import core
  File "/opt/_internal/cpython-2.7.11-ucs4/lib/python2.7/site-packages/paddle/fluid/core.py", line 189, in <module>
    raise e
ImportError: dlopen: cannot load any more object with static TLS
>>> exit
Use exit() or Ctrl-D (i.e. EOF) to exit

看了这个跟TLS有关的issueCannot load any more object with static TLS while executing crnn_ctc on multi-devices后验证了关闭 mkl的whl包，从ci上下载了 cuda9.0_cudnn7_openblas whl包 而openblas的包不报错，且可以正常使用

Python 2.7.11 (default, Nov 15 2019, 12:44:37)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-15)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import paddle.fluid as fluid
>>> import paddle
>>>

• 问题描述：

目前验证过 paddle1.6.1 paddle1.6.2开启mkl的whl包，如果升级了镜像glibc并不会造成该问题。该问题仅在develop上可以复现。