Brice
>Can you print the pattern before and after thread 1 touched its pages, or even
>in the middle ?
>It looks like somebody is touching too many pages here.
Experimenting with different threads touching one or more pages, I get
unpredicatable results
here on the 8 numa node device, the
Le 28/01/2019 à 11:28, Biddiscombe, John A. a écrit :
> If I disable thread 0 and allow thread 1 then I get this pattern on 1 machine
> (clearly wrong)
>
>
Can you try again disabling the touching in one thread to check whether
the other thread only touched its own pages? (others' status should be
-2 (ENOENT))
Recent kernels have ways to migrate memory at runtime
(CONFIG_NUMA_BALANCING) but this should only occur when it detects that
some thread
Brice
I might have been using the wrong params to hwloc_get_area_memlocation in my
original version, but I bypassed it and have been calling
int get_numa_domain(void *page)
{
HPX_ASSERT( (std::size_t(page) & 4095) ==0 );
void *pages[1] = { page };
