int hbw_check_available(void);
void* hbw_malloc(size_t size);
void* hbw_calloc(size_t nmemb, size_t size);
void* hbw_realloc (void *ptr, size_t size);
void hbw_free(void *ptr);
int hbw_posix_memalign(void **memptr, size_t alignment, size_t size);
I will implement a serious build system later.
make -C src && make -C test
HBWMALLOC_VERBOSE - print out extra information, such as when commands succeed.
HBWMALLOC_SOFTFAIL - by default, if HBW allocation fails, the library will abort. Setting this option allows the library to fall back to the default heap when the special heap is not available.
HBWMALLOC_BYTES - unimplemented.
HBWMALLOC_LOCKLESS - library calls will not be thread-safe, in which case the application must use its own mutual exclusion if calls are made from more than one thread.
Note that HBWMALLOC_LOCKLESS is set automatically if MPI is used in single-threaded mode (MPI_THREAD_SINGLE). If you use MPI_Init, you are implicitly requesting MPI_THREAD_SINGLE. It is erroneous to use threads in an MPI program in which MPI_THREAD_SINGLE is requested.
- Jeff Hammond, Intel - Initial implementation.
- Adrian Jackson, EPCC - Fortran interface.