Hey, > So I've implemented a PyViennaCL translation of the blas3_prod test, but > I'm having difficulties with OPERATION_UNARY_FABS_TYPE. If I construct > an OPERATION_UNARY_FABS_TYPE node with just a DENSE_ROW_MATRIX as a > leaf, then everything passes as expected. But if I try and execute > OPERATION_UNARY_FABS_TYPE on a composite node, of type > OPERATION_BINARY_SUB_TYPE, then I get unexpected results. Note that the > dense matrix that works is simply constructed as the explicit > subtraction of the same two matrices that don't work when passed as a > complex expression! > > That is, in PyViennaCL, > > `p.ElementFabs(p.Matrix(a.as_ndarray() - b.as_ndarray())).value` is not > equal to `p.ElementFabs(a - b).value`*. I don't think this has anything > to do with the change I just made to master (before that, I just got a > segfault) -- but I am not sure. > > * `(a - b).value` /is/ equal to `(a.as_ndarray() - b.as_ndarray())`, so it's > not the subtraction that's wrong... > > I'm not sure what's going on...
I'm not entirely sure either, but I'll have a look at it. Best regards, Karli ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
