Some example of how to use NVC++ with C++17 and GPU

# Requirements

- nvc++ compiler (from NVIDIA HPC SDK 20.11)
- cmake > 3
- make
- gnuplot
- libtbb, libtbb-dev

# Performances with nvc++

With the environnement variable **NVCPP** pointing to your nvc++ compiler.

```sh
	$ cd HadamardProductNvcpp
	$ mkdir build
	$ cd build
	$ cmake .. -DGPU_MODE=yes -DCMAKE_CXX_COMPILER=$NVCPP
	$ make
	$ make plot_all
```