* Add mfem::swap for the classes Memory, Array, Array2D, and Vector.
* These mfem::swap functions are for use by the standard library.
* Re-define mfem::Swap to use mfem::swap, or, if is not defined, std::swap
* Remove some calls to Memory::Reset after Memory::Delete since the latter
calls the former
* Update/improve the definitions of the Vector move-constructor and move-
assignment; in the copy-assignment, skip the virtual calls to
v.UseDevice(bool) when they are not needed.
* In DenseMatrix::SetSize, update the size of the data Array to match
height x width.
* Propagate the parameter use_dev in Table::{ReadI,ReadJ} to the respective
Array::Read calls.
* In Table::Size_of_connections, return J.Size() instead of I[size].
* Some small Doxygen tweaks.
some small tweaks.
Replace some uses of 'long' with 'long long' to better support
Win64 builds where 'long' is 32-bit and 'long long' is 64-bit.
On Linux and MacOS, both types are typically 64-bit.
Updated various "MemoryUsage" methods to return 'std::size_t'
instead of 'long' since the latter is 32-bit in Win64 builds.
Updated CHANGELOG.
and transfers.
The Memory class is now used by some MFEM classes (like Array and
Vector) which can be used on the Device. Such classes now provide
methods to access the underlying Memory object, e.g. GetMemory.
Updated ex1/ex1p and ex6/ex6p to not need to enable/disable the
Device at specific points -- the Device is now enabled just at the
start. Also, the same examples can now run on Device (e.g. -d cuda)
without the partial assembly option (-pa) -- full assembly will
be still done on CPU but the sparse matrix action and vector
operations will be done using the Device.
Reverted changes in class DenseMatrix related to using the Device.
At this point, DenseMatrix operations are only used for small matrices
and using the Device in this case is not a good option.
This matches the names of the functions in mm:: and also more closely
matches their use in the rest of mfem.
Also removed the template parameter for mm::free since it is not needed.
It is possible in the future to add equivalents of new and delete to the
mm class (with different names since those are keywords) in case it is
desirable to call the constructor and destructor.
general/globals.[ch].
Renamed class WrappedOStream to OutStream and use a different
implementation in order to support the case when the OutStream is passed
as a parameter of type std::ostream.
In class MPI_Session, added an MPI_Comm parameter to both constructors,
with a default value of MPI_COMM_WORLD.
Hide the global variable MFEM_COMM_WORLD and allow access (read and
write) with global functions: GetGlobalMPI_Comm() and
SetGlobalMPI_Comm() - in the future, we may want to perform some tasks
when changing the "global" MPI communicator.
In mfem_error(), use GetGlobalMPI_Comm() instead of MPI_COMM_WORLD.
Minor formatting changes and #include reordering.
Veselin Dobrev