In C, Migrate memory to a NUMA node -

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i developing numa application , need migrate big arrays node (the node created) node.

i can't use numa_alloc_onnode() function because need have shared memory between process allocates memory , child.

the situation following:

i have array (which dimension equal number of numa nodes) of (big) node* array, node* typedef of struct:

node** overall_trees;

i-th node* array have in i-th numa node.

what have done is:

overall_trees[i] = mmap(null,(1+number_of_nodes)*sizeof(node), prot_read | prot_write, map_shared | map_anonymous, -1, 0); numa_move_pages(0, (int) (1+number_of_nodes)*sizeof(node) / page_size, &overall_trees[i],  &i, &status, mpol_mf_move);

but numa_move_pages() returns -1.

actually first time in dealing numa allocation , maybe trying totally wrong. if different solution possible, feel free expose it.

thank you





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