Yes, that worked, thanks! Am Montag, 23. September 2019 17:17:09 UTC+2 schrieb Martin Kronbichler: > > Dear Maxi, > > Did you try to call 'operator=' in the same line as you declare the > variable? In that case, you still go through the (missing) constructor. It > should work if you first declare the float vector in one statement and then > assign in the next. We have this function: > > > https://dealii.org/current/doxygen/deal.II/classLinearAlgebra_1_1distributed_1_1Vector.html#ad364c47c5b3b7b991490cd626c729f0b > > Furthermore, there is also a function > LinearAlgebra::distributed::Vector::copy_locally_owned_subrange_from() > which also works with different number types, say double to float: > > > https://dealii.org/current/doxygen/deal.II/classLinearAlgebra_1_1distributed_1_1Vector.html#ab792ddb04b95a220e489f2d7f9eee990 > > (In that case, no data is exchanged, and the vectors need to have > compatible locally owned dofs before calling.) > > Best, > Martin > On 23.09.19 17:07, 'Maxi Miller' via deal.II User Group wrote: > > When doing that in my code, I get the error > error: conversion from ‘Vector<double,[...]>’ to non-scalar type ‘Vector< > float,[...]>’ requested > > thus I assume I have to implement it myself... > > Am Freitag, 13. September 2019 17:53:37 UTC+2 schrieb Wolfgang Bangerth: >> >> On 9/13/19 8:39 AM, 'Maxi Miller' via deal.II User Group wrote: >> > In my program I have to reuse old solutions (due to time dependency), >> > but would like to use them both as double values and float values >> > (preconditioning does not require double values). Unfortunately my old >> > solution is only given as a >> > LinearAlgebra::distributed::Vector<double>(), but I have to use a >> > LinearAlgebra::distributed::Vector<float>. Direct conversion via >> > LinearAlgebra::distributed::Vector<float> float_solution(old_solution) >> > does not work. Are there other ways for conversion? >> >> I think that the other classes all have conversion constructors or >> conversion operator=. If this class doesn't have one, you probably want >> to add it to support what you need. It should be a relatively easy patch >> to write, and we'd of course be happy to take it, as always! >> >> Best >> W. >> >> -- >> ------------------------------------------------------------------------ >> Wolfgang Bangerth email: [email protected] >> www: http://www.math.colostate.edu/~bangerth/ >> > -- > The deal.II project is located at http://www.dealii.org/ > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dealii/1e88472a-6dce-4a26-ada0-197a82adea63%40googlegroups.com > > <https://groups.google.com/d/msgid/dealii/1e88472a-6dce-4a26-ada0-197a82adea63%40googlegroups.com?utm_medium=email&utm_source=footer> > . > >
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