On 9/14/23 20:13, Raghunandan Pratoori wrote:
The above section of code gives an error during the compress operation. The
error message is -
‘class std::vector<std::vector<dealii::TrilinosWrappers::MPI::Vector,
std::allocator<dealii::TrilinosWrappers::MPI::Vector> > >’ has no member named
‘compress’
The above error message is expected as the compress operation is not defined
for that datatype. However, I am unsure how to do the compress operation, as
mentioned in Step-18. Please advice.
Well, as you already note, there is no compress() member function on
std::vector. But you don't want to call compress() on the std::vector anyway,
you want to call it on the individual TrilinosWrappers::MPI::Vector objects
that are stored in the std::vector. The following should do:
for (unsigned int i=0; i<history_field.size(); ++i)
for (unsigned int j=0; j<history_field[i].size(); ++j)
history_field[i][j].compress(...);
Best
W.
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