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author | psychocrypt <psychocrypt@users.noreply.github.com> | 2017-09-29 20:32:31 +0200 |
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committer | psychocrypt <psychocrypt@users.noreply.github.com> | 2017-09-30 23:46:08 +0200 |
commit | cc429b68fadc502b981fd0acd64a5ff6e2ae1d15 (patch) | |
tree | 3fb23fc4db15dbdd08af4c7ea20134b9d82e58fd /xmrstak/backend/cpu/hwlocMemory.hpp | |
parent | e5b0319d5a9f58762fa934ad700113908940cb31 (diff) | |
download | xmr-stak-cc429b68fadc502b981fd0acd64a5ff6e2ae1d15.zip xmr-stak-cc429b68fadc502b981fd0acd64a5ff6e2ae1d15.tar.gz |
group files
- move source code to `src`
- categorize files and move to group folder
- change upper case class files to lower case
- change C++ header to `*.hpp`
Diffstat (limited to 'xmrstak/backend/cpu/hwlocMemory.hpp')
-rw-r--r-- | xmrstak/backend/cpu/hwlocMemory.hpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/xmrstak/backend/cpu/hwlocMemory.hpp b/xmrstak/backend/cpu/hwlocMemory.hpp new file mode 100644 index 0000000..f471951 --- /dev/null +++ b/xmrstak/backend/cpu/hwlocMemory.hpp @@ -0,0 +1,55 @@ +#pragma once + +#include "console.h" + +#ifndef CONF_NO_HWLOC + +#include <hwloc.h> + +/** pin memory to NUMA node + * + * Set the default memory policy for the current thread to bind memory to the + * NUMA node. + * + * @param puId core id + */ +void bindMemoryToNUMANode( size_t puId ) +{ + int depth; + hwloc_topology_t topology; + + hwloc_topology_init(&topology); + hwloc_topology_load(topology); + + depth = hwloc_get_type_depth(topology, HWLOC_OBJ_PU); + + for( size_t i = 0; + i < hwloc_get_nbobjs_by_depth(topology, depth); + i++ ) + { + hwloc_obj_t pu = hwloc_get_obj_by_depth(topology, depth, i); + if( pu->os_index == puId ) + { + if( 0 > hwloc_set_membind_nodeset( + topology, + pu->nodeset, + HWLOC_MEMBIND_BIND, + HWLOC_MEMBIND_THREAD)) + { + printer::inst()->print_msg(L0, "hwloc: can't bind memory"); + } + else + { + printer::inst()->print_msg(L0, "hwloc: memory pinned"); + break; + } + } + } +} +#else + +void bindMemoryToNUMANode( size_t ) +{ +} + +#endif |