an alias when the 'own_mem' parameter is fasle.
Several simplifications/tweaks related to Vector::NewMemoryAndSize
and Vector::MakeRef in BlockVector, GridFunction, LinearForm, and
ParBlockNonlinearForm.
Add more MFEM_ASSERTs in MemoryManager::Delete_.
Remove MemoryManager::RegisterAliasBases().
In Memory<T>::MakeAlias, register the 'base' when the globally
configured device memory type (which can be a host type, e.g. when
running on host) is a device memory type. Always registering the
'base' creates errors in the unit tests:
"alias already exists with different base/offset!"
which are probably due to dangling aliases. If we want to always
register the 'base', we need to address these errors.
Updated the unit test "MemoryManager/Scopes" to test for the new
behavior of Vector::NewMemoryAndSize.
Disable the unit test "MemoryManager" since it defined a Device
object which destroys the MemoryManager at the end of the test.
MFEM_ERROR_ABORT and MFEM_ERROR_THROW.
Replaced 'set_use_throw(bool)' with 'set_error_action(ErrorAction)' and
'get_use_throw()' with 'get_error_action()'.
Rename class MFEM_Exception to ErrorException.
Add MFEM_USE_EXCEPTIONS to version.cpp.
A few updates in the build systems related to the new build option
MFEM_USE_EXCEPTIONS.
MPI_Session - the only communicator that makes sense with this class is
MPI_COMM_WORLD.
Replace `mfem::err.GetStream()` with `mfem::err`.
Remove #include "communication.hpp" from error.hpp.
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.
Tzanio Kolev