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memkind_hugetlb(3)

Intel Corporation
2015-04-21

libmemkind-dev

user-extensible heap manager for heterogeneous memory platforms

memkind-devel

Memkind User Extensible Heap Manager development lib and tools

NAME

memkind_hugetlb - hugetlb memory memkind operations.
Note: This is EXPERIMENTAL API. The functionality and the header file itself can be changed (including non-backward compatible changes) or removed.

SYNOPSIS

int memkind_hugetlb_check_available_2mb(struct memkind *kind);
int memkind_hugetlb_get_mmap_flags(struct memkind *kind, int *flags);
void memkind_hugetlb_init_once(void);

DESCRIPTION

The hugetlb memory memkind operations enable memory kinds which use the Linux hugetlbfs file system. For more information about the hugetlbfs see link below.
memkind_hugetlb_check_available_2mb() check if there are 2MB pages reserved in the default hugetlbfs. If the kind implements ops.get_mbind_nodemask(), then only the NUMA nodes set by the nodemask are checked, otherwise every NUMA node is checked.
memkind_hugetlb_get_mmap_flags() sets the flags for the mmap() system call such that the hugetlbfs is utilized for allocations.
memkind_hugetlb_init_once() this function initializes MEMKIND_HUGETLB kind and it should not be called more than once. Note: memkind_hugetlb_init_once() may reserve some extra memory.

COPYRIGHT

Copyright (C) 2014 - 2019 Intel Corporation. All rights reserved.
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