Intel MKL memory management and exceptions
- by Andrew
Hello everyone,
I am trying out Intel MKL and it appears that they have their own memory management (C-style).
They suggest using their MKL_malloc/MKL_free pairs for vectors and matrices and I do not know what is a good way to handle it. One of the reasons for that is that memory-alignment is recommended to be at least 16-byte and with these routines it is specified explicitly.
I used to rely on auto_ptr and boost::smart_ptr a lot to forget about memory clean-ups.
How can I write an exception-safe program with MKL memory management or should I just use regular auto_ptr's and not bother?
Thanks in advance.
EDIT
http://software.intel.com/sites/products/documentation/hpc/mkl/win/index.htm
this link may explain why I brought up the question
UPDATE
I used an idea from the answer below for allocator. This is what I have now:
template <typename T, size_t TALIGN=16, size_t TBLOCK=4>
class aligned_allocator : public std::allocator<T>
{
public:
pointer allocate(size_type n, const void *hint)
{
pointer p = NULL;
size_t count = sizeof(T) * n;
size_t count_left = count % TBLOCK;
if( count_left != 0 ) count += TBLOCK - count_left;
if ( !hint ) p = reinterpret_cast<pointer>(MKL_malloc (count,TALIGN));
else p = reinterpret_cast<pointer>(MKL_realloc((void*)hint,count,TALIGN));
return p;
}
void deallocate(pointer p, size_type n){ MKL_free(p); }
};
If anybody has any suggestions, feel free to make it better.
