Subject: Re: g++ 4.4.6 and boost ublas 1_48 compile problem Newsgroups: gmane.comp.lib.boost.ublas Date: Wednesday 22nd February 2012 16:33:41 UTC (over 5 years ago) On 02/22/2012 05:21 PM, Thomas Klimpel wrote: > > Oh, I don't think that the version of boost has anything to do with this. The problem should be the same in boost_1_49 as in boost_1_40. The problem is in the libstd++ that comes with gcc> 4.4 Hi again, indeed, my ignorance, sorry > To be honest, I don't fully understand what you are asking here. I am doing some FE assembly from some commercial finite element code. If you are not familiar with Finite element methods, it is normal that you can not understand. I basically do an operation, with generalized_vector_of_vector, sth like A( index_array_row, index_array_col ) = A( index_array_row, index_array_col ) + b where b is a matrix of conforming in size with index_arrays. So I add up smaller matrices each time. What I asked: 'are there faster alternatives to this in some other library', however in a benchmark paper with MTL, it was shown that the above approach of ublas was the fastest for these kinds of additions, I do not remember the exact paper location now however. > Well, I meant that boost::ublas should use its own implementation of "inplace_merge" (copied for example from sgi, if license permits). As I wrote in that message, the main problem would be to sort out potential license issues. But I have no idea what the actual status is. The last thing I remember is that David replied that he wanted to take a look at it. I see, thanks again Best wishes, Umut _______________________________________________ ublas mailing list [email protected] http://lists.boost.org/mailman/listinfo.cgi/ublas Sent to: [email protected] |
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