The fundamental concept for accessing memory through Umpire is an umpire:Allocator
. In FORTRAN, this means using the type UmpireAllocator
. This type provides an allocate_pointer
function to allocate raw memory, and a generic allocate
procedure that takes an array pointer and an array of dimensions and will allocate the correct amount of memory.
As with the native C++ interface, all allocators are accessed via the umpire::ResourceManager
. In the FORTRAN API, there is a corresponding UmpireResourceManager
type. To get an UmpireAllocator
:
../../../../examples/tutorial/fortran/tut_allocator.f
In this example we fetch the allocator by id, using 0 means you will always get a host allocator. Once you have an UmpireAllocator
, you can use it to allocate and deallocate memory:
../../../../examples/tutorial/fortran/tut_allocator.f
In this case, we allocate a one-dimensional array using the generic allocate
function.