85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018 Lee Clagett <https://github.com/vtnerd>
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* Copyright 2018-2019 SChernykh <https://github.com/SChernykh>
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* Copyright 2018-2019 tevador <tevador@gmail.com>
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* Copyright 2016-2019 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef XMRIG_FEATURE_HWLOC
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# include <hwloc.h>
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# include "backend/cpu/platform/HwlocCpuInfo.h"
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#
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# if HWLOC_API_VERSION < 0x00010b00
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# define HWLOC_OBJ_NUMANODE HWLOC_OBJ_NODE
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# endif
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#endif
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#include "base/io/log/Log.h"
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#include "crypto/common/VirtualMemory.h"
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uint32_t xmrig::VirtualMemory::bindToNUMANode(int64_t affinity)
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{
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# ifdef XMRIG_FEATURE_HWLOC
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if (affinity < 0 || !HwlocCpuInfo::has(HwlocCpuInfo::SET_THISTHREAD_MEMBIND)) {
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return 0;
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}
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hwloc_topology_t topology;
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hwloc_topology_init(&topology);
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hwloc_topology_load(topology);
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const unsigned puId = static_cast<unsigned>(affinity);
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hwloc_obj_t pu = hwloc_get_pu_obj_by_os_index(topology, puId);
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# if HWLOC_API_VERSION >= 0x20000
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if (pu == nullptr || hwloc_set_membind(topology, pu->nodeset, HWLOC_MEMBIND_BIND, HWLOC_MEMBIND_THREAD | HWLOC_MEMBIND_BYNODESET) < 0) {
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# else
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if (pu == nullptr || hwloc_set_membind_nodeset(topology, pu->nodeset, HWLOC_MEMBIND_BIND, HWLOC_MEMBIND_THREAD) < 0) {
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# endif
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LOG_WARN("CPU #%02u warning: \"can't bind memory\"", puId);
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}
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uint32_t nodeId = 0;
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if (pu) {
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hwloc_obj_t node = nullptr;
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while ((node = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_NUMANODE, node)) != nullptr) {
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if (hwloc_bitmap_intersects(node->cpuset, pu->cpuset)) {
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nodeId = node->os_index;
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break;
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}
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}
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}
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hwloc_topology_destroy(topology);
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return nodeId;
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# else
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return 0;
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# endif
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}
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