[GRASS-user] r.sun and OpenCL not working

GRASS GRASS user
1

Hi list,

I have configure grass7.04 -with-opencl --with-opencl-includes=/path/include --with-opencl-libs=/path/lib and I try to run it on a Intel Xeon dual socket 32-thread. The compilation say that OpenCl support is activated but when i run r.sun I don’t see any multi-theard I uses only one CPU.

Any suggestion to solve the issue?

Best,

Lorenzo

2

On Fri, Nov 11, 2016 at 4:49 PM, Lorenzo Bottaccioli
<lorenzo.bottaccioli@gmail.com> wrote:

Hi list,

I have configure grass7.04 -with-opencl --with-opencl-includes=/path/include
--with-opencl-libs=/path/lib and I try to run it on a Intel Xeon dual socket
32-thread. The compilation say that OpenCl support is activated but when i
run r.sun I don't see any multi-theard I uses only one CPU.

Any suggestion to solve the issue?

According to
https://trac.osgeo.org/grass/ticket/1446#comment:7
there is the "infrastructure" to support openCL included but the r.sun
code does not contain the relevant changes to make use of openCL.

The r.sun code with openCL support is here (but it was not maintained
any more since 2011):
https://grasswiki.osgeo.org/wiki/R.sun#OpenCL

So some effort would be needed to get that running again.

Best
Markus