Facing errors wrt g++ version type

[ramya2898]

The version that I'm currently running on are as follows:
CUDA - 10.0
OS - Linux-x86_64
cudnn-10.2-linux-x64-v7.6.5.32.tgz
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)

I tried to download and run the code as mentioned in the README file. But I faced the following errors:

/usr/local/cuda/bin/nvcc -ccbin g++ -I/usr/local/cuda/samples/common/inc -I/usr/local/cuda/include -m64 -g -std=c++11 -G --resource-usage -Xcompiler -rdynamic -Xcompiler -fopenmp -rdc=true -lnvToolsExt -I/usr/local/cuda/samples/common/inc -I/usr/local/cuda/include -L/usr/local/cuda/lib -lcublas -lcudnn -lgomp -lcurand -gencode arch=compute_50,code=sm_50 -c train.cpp -o obj/train.o
nvcc warning : Resource usage is not shown as the final resource allocation is not done.
nvcc warning : The -c++11 flag is not supported with the configured host compiler. Flag will be ignored.
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/array:35,
from src/mnist.h:6,
from train.cpp:1:
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/c++0x_warning.h:31:2: error: #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options.
In file included from src/mnist.h:13,
from train.cpp:1:
src/blob.h:45: error: expected ‘)’ before ‘<’ token
src/blob.h:97: error: ‘std::array’ has not been declared
src/blob.h:97: error: expected ‘,’ or ‘...’ before ‘<’ token
src/blob.h:103: error: ISO C++ forbids declaration of ‘array’ with no type
src/blob.h:103: error: invalid use of ‘::’
src/blob.h:103: error: expected ‘;’ before ‘<’ token
train.cpp:149: error: expected ‘;’ at end of input
train.cpp:149: error: expected ‘}’ at end of input
In file included from src/mnist.h:13,
from train.cpp:1:
src/blob.h: In destructor ‘cudl::Blob::~Blob()’:
src/blob.h:60: error: ‘is_tensor_’ was not declared in this scope
src/blob.h:61: error: ‘tensor_desc_’ was not declared in this scope
src/blob.h: In member function ‘void cudl::Blob::reset(int, int, int, int)’:
src/blob.h:87: error: ‘cudl::cuda’ cannot be used as a function
src/blob.h:90: error: ‘is_tensor_’ was not declared in this scope
src/blob.h:92: error: ‘tensor_desc_’ was not declared in this scope
src/blob.h: In member function ‘void cudl::Blob::reset(int)’:
src/blob.h:99: error: ‘size’ was not declared in this scope
src/blob.h: At global scope:
src/blob.h:100: error: expected unqualified-id at end of input
src/blob.h:100: error: expected ‘}’ at end of input
make: *** [obj/train.o] Error 1

[Jaegeun Han]

Hi, my test environment uses gcc 7.4.0 from Ubuntu 18.04 and uses some C++11 features.
And it seems it is related to the supported C++ version. Because your compiler reports as follows.

nvcc warning : The -c++11 flag is not supported with the configured host compiler. Flag will be ignored.

And,

/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/c++0x_warning.h:31:2: error: #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options.

This project uses NVCC (CUDA compiler) and this uses the host compiler where it is installed. So, you need to modify Makefile to pass proper compiler flags. Can you replace -c++11 with -std=c++0x or -std=gnu++0x instead and test?

[Jaegeun Han]

Close the issue because of the thread's inactivity.