Re: OCL package 1.0.0 released

[PhilipNienhuis]

Matthias W. Klein wrote
> Hi Octave folks,
> 
> a new release of the OCL package providing OpenCL support for
> parallelized calculations (including GPGPU) is available [1], version
> 1.0.0 .
> 
> It is the first package release which is fully compatible with all
> recently released octave versions.  (Thanks to the "communications"
> package, I learned a crucial octave programming technique.)  A summary
> of all important user-visible changes is available online [2].
> 
> Users and developers can choose to either download and install the
> package tarball [3], or clone the repo [4] and use 'make dist' and other
> Makefile targets for local testing.
> 
> Feedback is welcome, by e-mail or project ticket.

I just tested ocl-1.0 on a cross-built dev Octave 6.0.0 on my Windows 7 box
with 2 graphics HW, i.e., built-in Intel plus an NVidia graphics card. 
Results: ocl_tests works fine & gives no errors and the example in the
doc/README works fine compared to mimicking the commands in Octave.

While installing/building the package I got a LOT of errors along the lines
of:

:
C:/Programs/Octave/OCTAVE~1.0_2/mingw64/bin/mkoctfile-6.0.0.exe --verbose -c
ocl_ov_matrix.cc
g++ -c
-I/home/philip/devel/octdev/mxe/mxe_64b_20190808/usr/x86_64-w64-mingw32/include 
-IC:\Progr
ams\Octave\OCTAVE~1.0_2\mingw64\include\octave-6.0.0\octave\..
-IC:\Programs\Octave\OCTAVE~1.0_2\m
ingw64\include\octave-6.0.0\octave
-IC:\Programs\Octave\OCTAVE~1.0_2\mingw64\include   -fopenmp -g
 -O2    ocl_ov_matrix.cc -o ocl_ov_matrix.o
ocl_ov_matrix.cc: In member function 'octave_base_ocl_matrix<AT>*
octave_base_ocl_matrix<AT>::ocl_
index_op(const octave_value_list&, bool)':
ocl_ov_matrix.cc:181:13: warning: 'error_state' is deprecated: [6]: this
variable is obsolete and
always has the value 0 [-Wdeprecated-declarations]
         if (error_state) break;
             ^~~~~~~~~~~
In file included from
c:\programs\octave\octave~1.0_2\mingw64\include\octave-6.0.0\octave\oct.h:33
:0,
                 from ocl_octave_versions.h:4,
                 from ocl_ov_matrix.h:37,
                 from ocl_ov_matrix.cc:32:
c:\programs\octave\octave~1.0_2\mingw64\include\octave-6.0.0\octave\error.h:551:26:
note: declared
 here
 extern OCTINTERP_API int error_state;
                          ^~~~~~~~~~~
ocl_ov_matrix.cc:190:11: warning: 'error_state' is deprecated: [6]: this
variable is obsolete and
always has the value 0 [-Wdeprecated-declarations]
:

so I'd suggest to update these statements so that ocl-1.0 isn't outdated the
moment that Octave-6.1.0 is released. Perhaps some configure option stuff is
needed for that.

Next try: on the virtualized HW of the VDI clients at work. Maybe maybe it
works.

Nice work, Matthias!

Philip




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