47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
/* XMRig
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* Copyright (c) 2018 Lee Clagett <https://github.com/vtnerd>
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* Copyright (c) 2018-2019 tevador <tevador@gmail.com>
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* Copyright (c) 2018-2021 SChernykh <https://github.com/SChernykh>
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* Copyright (c) 2016-2021 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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#include "crypto/common/VirtualMemory.h"
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#include "backend/cpu/Cpu.h"
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#include "backend/cpu/platform/HwlocCpuInfo.h"
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#include "base/io/log/Log.h"
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#include <hwloc.h>
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uint32_t xmrig::VirtualMemory::bindToNUMANode(int64_t affinity)
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{
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if (affinity < 0 || Cpu::info()->nodes() < 2) {
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return 0;
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}
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auto cpu = static_cast<HwlocCpuInfo *>(Cpu::info());
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hwloc_obj_t pu = hwloc_get_pu_obj_by_os_index(cpu->topology(), static_cast<unsigned>(affinity));
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if (pu == nullptr || !cpu->membind(pu->nodeset)) {
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LOG_WARN("CPU #%02" PRId64 " warning: \"can't bind memory\"", affinity);
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return 0;
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}
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return hwloc_bitmap_first(pu->nodeset);
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}
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