Greetings,
I am working on writing some additional opencl kernels (potentially to
incorporate in to viennacl) which involve column-wise reductions. A simple
case would simply be the sum of each column of a matrix. However, I am
having an extremely difficult time getting my kernel correct
, July 27, 2015 8:27 PM
Subject: Re: [ViennaCL-devel] Column-wise kernels?
Hi Charles,
I am working on writing some additional opencl kernels (potentially to
incorporate in to viennacl) which involve column-wise reductions. A
simple case would simply be the sum of each column of a matrix
Hi Charles,
I am working on writing some additional opencl kernels (potentially to
incorporate in to viennacl) which involve column-wise reductions. A
simple case would simply be the sum of each column of a matrix.
However, I am having an extremely difficult time getting my kernel
correct
Excellent, thank you. I thought that would be the way to go initially
but I hesitated because of concerns about having additional temporary
objects taking up memory when matrices begin to get larger but it
certainly is simpler this way.
Just pushed:
Excellent, thank you. I thought that would be the way to go initially but
I hesitated because of concerns about having additional temporary objects
taking up memory when matrices begin to get larger but it certainly is
simpler this way.
Glad to hear that 1.7.0 is nearly completed. Does that
Hi,
Such row-rise / column-wise reductions could be generate-able by the OpenCL
backend, but this won't work on the Host of CUDA backend. Plus, this is not
really maintained at the moment. I would recommend Karl's solution, even
though it won't be optimal when the vector does not fit in the L2
Philippe,
I definitely understand and support such a solution for ViennaCL. I don't
mean to say it should be included, I was just curious what the current
approach was. However, I am interested in additional OpenCL development
outside of the framework. Do you have any recommendations in
Hi,
in addition to what Philippe said, let me give you a short code snippet
used as a prototype for a couple of reductions in ViennaCL. It certainly
takes a little to get your head around it, but once you figured it out
it's like a swiss army knife ;-)
The overall workflow is always the same:
