Cuda dependency outlook

[Rudolf Weeber]

Hi,

in this mail, we'd like to communicate our plans for Cuda version dependencies 
for the upcoming Espresso releases.
Espresso 4.2, which is expected early 2021, requires Cuda 10.
Bug fix releases for the 4.2 line will continue to support Cuda 10 as long as 
this is possible with reasonable effort.

After the release of Espresso 4.2, i.e., for the development branch of Espresso 
4.3, we will require Cuda 11.  
Please be aware, that Cuda 11 no longer supports cards with compute capability 
3.0 like GTX 680 (released in 2012).
The list of GPUs and their Cuda Compute Capability is here: 
https://developer.nvidia.com/cuda-gpus

The reason for requiring Cuda 11 is that we will switch the Espresso core to 
C++17. This introduces several features in C++ which make our live as 
developers much easier. Cuda 11 is the first Cuda version that supports C++17 
to a reasonable degree.

Regards, Rudolf
-- 
Dr. Rudolf Weeber
Institute for Computational Physics
Universität Stuttgart
Allmandring 3
70569 Stuttgart
Germany
Phone: +49(0)711/685-67717
Email: weeber@icp.uni-stuttgart.de
http://www.icp.uni-stuttgart.de/~icp/Rudolf_Weeber