66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2020,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO 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 2 of the License, or
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(at your option) any later version.
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SECONDO 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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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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This files realizes a balanced dsitribution of slots to workers.
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*/
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#pragma once
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#include <vector>
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#include <cstdint>
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/*
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Computes a balanced assignment of slots to workers.
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The argument slotsizes contains the sizes of the all slots,
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noWorkers is the number of workers on that the slots will
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be distributed.
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The result will contain for each slot the assigned worker
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starting with zero.
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The algorithms works as follows.
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First, the slots are sorted by their size.
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Then, we iterator over the slots. The next slot is assigned to that
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worker having the smallest load.
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*/
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#include <vector>
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#include <stdint.h>
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namespace distributed2 {
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namespace loadbalance {
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std::vector<uint32_t> getMapping(const std::vector<double>& slotsizes,
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uint32_t noWorkers,
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bool simple);
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}
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}
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