Thanks! Ill pull in the latest dev and test against that. Cheers, -E
On Mon, Jul 22, 2013 at 1:47 PM, Karl Rupp <r...@iue.tuwien.ac.at> wrote: > Hi Evan, > > I just pushed support for sparse matrix-vector products when using > vector-ranges and vector-slices. > > https://github.com/viennacl/viennacl-dev/commit/7e68860886d6461e483a5965e0ede68146c74189 > > You cannot take ranges and slices of the matrix at the moment. > > Best regards, > Karli > > > > On 07/21/2013 04:23 PM, Evan Bollig wrote: >> >> Btw Karl: >> >> vector_range_M = viennacl::linalg::prod(A_MxN, vector_N); >> >> does not work. That would be equivalent to: >> >> vector_range_M = project( viennacl::linalg::prod(A_MxN, vector_N) , 0,M ); >> >> -E >> >> >> >> >> On Sun, Jul 21, 2013 at 4:13 PM, Evan Bollig <bol...@gmail.com> wrote: >>> >>> Ah I see. Thanks for the clarification on projecting the LHS. I was >>> trying to assign the result to an unprojected vector assuming (vector >>> - vector_range) would return a vector and (vector_range - vector) >>> would return a vector_range (i.e., operation returns operand type). >>> >>> -E >>> >>> On Sun, Jul 21, 2013 at 4:09 PM, Karl Rupp <r...@iue.tuwien.ac.at> wrote: >>>> >>>> Hi Evan, >>>> >>>> >>>>> Can you refresh my memory on how ViennaCL behaves with this operation: >>>>> >>>>> >>>>> vector = vector - vector_range >>>>> >>>>> I would like to subtract an M < N sized vector_range from an N sized >>>>> vector (by operating on the first M elements). Is this supported in >>>>> 1.4.2? >>>> >>>> >>>> >>>> Yes, this is supported. You can just use >>>> >>>> project(x, range(a, b)) = project(y, range(c, d)) - z; >>>> >>>> where z is some existing vector_range. Mixing of vectors with ranges and >>>> slices is perfectly fine and supported. >>>> >>>> Best regards, >>>> Karli >>>> >>> >>> >>> >>> -- >>> -Evan Bollig >>> bol...@gmail.com >>> bol...@scs.fsu.edu >> >> >> >> > -- -Evan Bollig bol...@gmail.com bol...@scs.fsu.edu ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
